Create or update a legacy index template
- POST also PUT /_template/{name}
Index templates define settings, mappings, and aliases that can be applied automatically to new indices. Elasticsearch applies templates to new indices based on an index pattern that matches the index name.
This documentation is about legacy index templates, which are deprecated and will be replaced by the composable templates introduced in Elasticsearch 7.8.
Composable templates always take precedence over legacy templates. If no composable template matches a new index, matching legacy templates are applied according to their order.
Index templates are only applied during index creation. Changes to index templates do not affect existing indices. Settings and mappings specified in create index API requests override any settings or mappings specified in an index template.
You can use C-style /* *\/ block comments in index templates.
You can include comments anywhere in the request body, except before the opening curly bracket.
Indices matching multiple templates
Multiple index templates can potentially match an index, in this case, both the settings and mappings are merged into the final configuration of the index. The order of the merging can be controlled using the order parameter, with lower order being applied first, and higher orders overriding them. NOTE: Multiple matching templates with the same order value will result in a non-deterministic merging order.
Read the reference documentationRequired privileges
- Cluster privileges manage_index_templates manage
Query parameters
-
createboolean · default: false -
If true, this request cannot replace or update existing index templates.
-
master_timeoutunion oneOf · default: 30s -
Period to wait for a connection to the master node. If no response is received before the timeout expires, the request fails and returns an error.
-
Values:
-10
Request body
-
aliasesmap string to object -
Aliases for the index.
-
<string>object -
filter{} Query -
Query used to limit documents the alias can access.
-
index_routingstring -
Value used to route indexing operations to a specific shard. If specified, this overwrites the
routingvalue for indexing operations. -
index_patternsunion string | string[] -
Array of wildcard expressions used to match the names of indices during creation.
-
mappingsobject -
Mapping for fields in the index.
-
propertiesmap string to oneOf -
<string>union oneOf -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
dimsnumber -
Number of vector dimensions. Can't exceed
4096. Ifdimsis not specified, it will be set to the length of the first vector added to the field. -
element_typeenum · default: float -
The data type used to encode vectors. The supported data types are
float(default),byte, andbit.Supported values include:
bit: Indexes a single bit per dimension. Useful for very high-dimensional vectors or models that specifically support bit vectors.
Notewhen using
bit, the number of dimensions must be a multiple of8and must represent the number of bits.byte: Indexes a 1-byte integer value per dimension.float: Indexes a 4-byte floating-point value per dimension.
-
Values:
bitbytefloat -
index_optionsobject -
An optional section that configures the kNN indexing algorithm. The HNSW algorithm has two internal parameters that influence how the data structure is built. These can be adjusted to improve the accuracy of results, at the expense of slower indexing speed.
This parameter can only be specified when
indexistrue. -
confidence_intervalnumber -
The confidence interval to use when quantizing the vectors. Can be any value between and including
0.90and1.0or exactly0. When the value is0, this indicates that dynamic quantiles should be calculated for optimized quantization. When between0.90and1.0, this value restricts the values used when calculating the quantization thresholds.For example, a value of
0.95will only use the middle95%of the values when calculating the quantization thresholds (e.g. the highest and lowest2.5%of values will be ignored).Defaults to
1/(dims + 1)forint8quantized vectors and0forint4for dynamic quantile calculation.Only applicable to
int8_hnsw,int4_hnsw,int8_flat, andint4_flatindex types. -
ef_constructionnumber · default: 100 -
The number of candidates to track while assembling the list of nearest neighbors for each new node.
Only applicable to
hnsw,int8_hnsw,bbq_hnsw, andint4_hnswindex types. -
mnumber · default: 16 -
The number of neighbors each node will be connected to in the HNSW graph.
Only applicable to
hnsw,int8_hnsw,bbq_hnsw, andint4_hnswindex types. -
typeenumrequired -
The type of kNN algorithm to use.
Supported values include:
bbq_flat: This utilizes a brute-force search algorithm in addition to automatically quantizing to binary vectors. Only supportselement_typeoffloat.bbq_hnsw: This utilizes the HNSW algorithm in addition to automatic binary quantization for scalable approximate kNN search withelement_typeoffloat.
This can reduce the memory footprint by nearly 32x at the cost of some accuracy.
flat: This utilizes a brute-force search algorithm for exact kNN search. This supports allelement_typevalues.hnsw: This utilizes the HNSW algorithm for scalable approximate kNN search. This supports allelement_typevalues.int4_flat: This utilizes a brute-force search algorithm in addition to automatically half-byte scalar quantization. Only supportselement_typeoffloat.int4_hnsw: This utilizes the HNSW algorithm in addition to automatically scalar quantization for scalable approximate kNN search withelement_typeoffloat.
This can reduce the memory footprint by 8x at the cost of some accuracy.
int8_flat: This utilizes a brute-force search algorithm in addition to automatically scalar quantization. Only supportselement_typeoffloat.int8_hnsw: The default index type forfloatvectors. This utilizes the HNSW algorithm in addition to automatically scalar quantization for scalable approximate kNN search withelement_typeoffloat.
This can reduce the memory footprint by 4x at the cost of some accuracy.
-
Values:
bbq_flatbbq_hnswflathnswint4_flatint4_hnswint8_flatint8_hnsw -
similarityenum -
The vector similarity metric to use in kNN search.
Documents are ranked by their vector field's similarity to the query vector. The
_scoreof each document will be derived from the similarity, in a way that ensures scores are positive and that a larger score corresponds to a higher ranking.Defaults to
l2_normwhenelement_typeisbitotherwise defaults tocosine.bitvectors only supportl2_normas their similarity metric.This parameter can only be specified when
indexistrue.Supported values include:
cosine: Computes the cosine similarity. During indexing Elasticsearch automatically normalizes vectors withcosinesimilarity to unit length. This allows to internally usedot_productfor computing similarity, which is more efficient. Original un-normalized vectors can be still accessed through scripts.
The document
_scoreis computed as(1 + cosine(query, vector)) / 2.The
cosinesimilarity does not allow vectors with zero magnitude, since cosine is not defined in this case.dot_product: Computes the dot product of two unit vectors. This option provides an optimized way to perform cosine similarity. The constraints and computed score are defined byelement_type.
When
element_typeisfloat, all vectors must be unit length, including both document and query vectors.The document
_scoreis computed as(1 + dot_product(query, vector)) / 2.When
element_typeisbyte, all vectors must have the same length including both document and query vectors or results will be inaccurate.The document
_scoreis computed as0.5 + (dot_product(query, vector) / (32768 * dims))wheredimsis the number of dimensions per vector.l2_norm: Computes similarity based on theL2distance (also known as Euclidean distance) between the vectors.
The document
_scoreis computed as1 / (1 + l2_norm(query, vector)^2).For
bitvectors, instead of usingl2_norm, thehammingdistance between the vectors is used.The
_scoretransformation is(numBits - hamming(a, b)) / numBits.max_inner_product: Computes the maximum inner product of two vectors. This is similar todot_product, but doesn't require vectors to be normalized. This means that each vector’s magnitude can significantly effect the score.
The document
_scoreis adjusted to prevent negative values. Formax_inner_productvalues< 0, the_scoreis1 / (1 + -1 * max_inner_product(query, vector)). For non-negativemax_inner_productresults the_scoreis calculatedmax_inner_product(query, vector) + 1. -
Values:
cosinedot_productl2_normmax_inner_product -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
inference_idstring · default: .elser-2-elasticsearch -
Inference endpoint that will be used to generate embeddings for the field. This parameter cannot be updated. Use the Create inference API to create the endpoint. If
search_inference_idis specified, the inference endpoint will only be used at index time. -
search_inference_idstring -
Inference endpoint that will be used to generate embeddings at query time. You can update this parameter by using the Update mapping API. Use the Create inference API to create the endpoint. If not specified, the inference endpoint defined by inference_id will be used at both index and query time.
-
index_optionsobject -
Settings for index_options that override any defaults used by semantic_text, for example specific quantization settings.
-
dense_vectorobject -
confidence_intervalnumber -
The confidence interval to use when quantizing the vectors. Can be any value between and including
0.90and1.0or exactly0. When the value is0, this indicates that dynamic quantiles should be calculated for optimized quantization. When between0.90and1.0, this value restricts the values used when calculating the quantization thresholds.For example, a value of
0.95will only use the middle95%of the values when calculating the quantization thresholds (e.g. the highest and lowest2.5%of values will be ignored).Defaults to
1/(dims + 1)forint8quantized vectors and0forint4for dynamic quantile calculation.Only applicable to
int8_hnsw,int4_hnsw,int8_flat, andint4_flatindex types. -
ef_constructionnumber · default: 100 -
The number of candidates to track while assembling the list of nearest neighbors for each new node.
Only applicable to
hnsw,int8_hnsw,bbq_hnsw, andint4_hnswindex types. -
mnumber · default: 16 -
The number of neighbors each node will be connected to in the HNSW graph.
Only applicable to
hnsw,int8_hnsw,bbq_hnsw, andint4_hnswindex types. -
typeenumrequired -
The type of kNN algorithm to use.
Supported values include:
bbq_flat: This utilizes a brute-force search algorithm in addition to automatically quantizing to binary vectors. Only supportselement_typeoffloat.bbq_hnsw: This utilizes the HNSW algorithm in addition to automatic binary quantization for scalable approximate kNN search withelement_typeoffloat.
This can reduce the memory footprint by nearly 32x at the cost of some accuracy.
flat: This utilizes a brute-force search algorithm for exact kNN search. This supports allelement_typevalues.hnsw: This utilizes the HNSW algorithm for scalable approximate kNN search. This supports allelement_typevalues.int4_flat: This utilizes a brute-force search algorithm in addition to automatically half-byte scalar quantization. Only supportselement_typeoffloat.int4_hnsw: This utilizes the HNSW algorithm in addition to automatically scalar quantization for scalable approximate kNN search withelement_typeoffloat.
This can reduce the memory footprint by 8x at the cost of some accuracy.
int8_flat: This utilizes a brute-force search algorithm in addition to automatically scalar quantization. Only supportselement_typeoffloat.int8_hnsw: The default index type forfloatvectors. This utilizes the HNSW algorithm in addition to automatically scalar quantization for scalable approximate kNN search withelement_typeoffloat.
This can reduce the memory footprint by 4x at the cost of some accuracy.
-
Values:
bbq_flatbbq_hnswflathnswint4_flatint4_hnswint8_flatint8_hnsw -
chunking_settingsobject -
Settings for chunking text into smaller passages. If specified, these will override the chunking settings sent in the inference endpoint associated with inference_id. If chunking settings are updated, they will not be applied to existing documents until they are reindexed.
-
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
index_optionsobject -
Additional index options for the sparse vector field that controls the token pruning behavior of the sparse vector field.
-
pruneboolean -
Whether to perform pruning, omitting the non-significant tokens from the query to improve query performance. If prune is true but the pruning_config is not specified, pruning will occur but default values will be used. Default: false
-
pruning_configobject -
Optional pruning configuration. If enabled, this will omit non-significant tokens from the query in order to improve query performance. This is only used if prune is set to true. If prune is set to true but pruning_config is not specified, default values will be used.
-
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
time_series_metricenum -
For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false.
-
Values:
gaugecountersummaryhistogramposition -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
synthetic_source_keepenum -
Supported values include:
none: Synthetic source diverges from the original source (default)arrays: Arrays of the corresponding field or object preserve the original element ordering and duplicate elements. The synthetic source fragment for such arrays is not guaranteed to match the original source exactly, e.g. array [1, 2, [5], [[4, [3]]], 5] may appear as-is or in an equivalent format like [1, 2, 5, 4, 3, 5]. The exact format may change in the future, in an effort to reduce the storage overhead of this option.all: The source for both singleton instances and arrays of the corresponding field or object gets recorded. When applied to objects, the source of all sub-objects and sub-fields gets captured. Furthermore, the original source of arrays gets captured and appears in synthetic source with no modifications.
-
Values:
nonearraysall -
ordernumber -
Order in which Elasticsearch applies this template if index matches multiple templates.
Templates with lower 'order' values are merged first. Templates with higher 'order' values are merged later, overriding templates with lower values.
-
settingsobject -
Configuration options for the index.
-
indexobject -
Same fields as
settings -
soft_deletesobject -
retention_leaseobject -
The maximum period to retain a shard history retention lease before it is considered expired. Shard history retention leases ensure that soft deletes are retained during merges on the Lucene index. If a soft delete is merged away before it can be replicated to a follower the following process will fail due to incomplete history on the leader.
-
routingobject -
allocationobject -
requireobject -
Assign the index to a node whose attribute has all of the given values. Each key is a node attribute: one of the built-in attributes
_name,_host_ip,_publish_ip,_ip,_host,_idand_tier, or a custom node attribute. Each value is a comma-separated string or an array of strings, and can use wildcards. -
lifecycleobject -
namestring -
The name of the policy to use to manage the index. For information about how Elasticsearch applies policy changes, see Policy updates.
-
indexing_completeboolean | string · default: false -
Indicates whether or not the index has been rolled over. Automatically set to true when ILM completes the rollover action. You can explicitly set it to skip rollover.
-
origination_datenumber · default: 0 -
If specified, this is the timestamp used to calculate the index age for its phase transitions. Use this setting if you create a new index that contains old data and want to use the original creation date to calculate the index age. Specified as a Unix epoch value in milliseconds.
-
parse_origination_dateboolean -
Set to true to parse the origination date from the index name. This origination date is used to calculate the index age for its phase transitions. The index name must match the pattern ^.*-{date_format}-\d+, where the date_format is yyyy.MM.dd and the trailing digits are optional. An index that was rolled over would normally match the full format, for example logs-2016.10.31-000002). If the index name doesn’t match the pattern, index creation fails.
-
translogobject -
sync_intervalunion oneOf · default: 5s -
How often the translog is fsynced to disk and committed, regardless of write operations. Values less than 100ms are not allowed.
-
Values:
-10 -
durabilityenum · default: string -
Whether or not to
fsyncand commit the translog after every index, delete, update, or bulk request.Supported values include:
request(orREQUEST): (default) fsync and commit after every request. In the event of hardware failure, all acknowledged writes will already have been committed to disk.async(orASYNC): fsync and commit in the background every sync_interval. In the event of a failure, all acknowledged writes since the last automatic commit will be discarded.
-
Values:
requestREQUESTasyncASYNC -
flush_threshold_sizenumber | string · default: 512mb -
The translog stores all operations that are not yet safely persisted in Lucene (i.e., are not part of a Lucene commit point). Although these operations are available for reads, they will need to be replayed if the shard was stopped and had to be recovered. This setting controls the maximum total size of these operations, to prevent recoveries from taking too long. Once the maximum size has been reached a flush will happen, generating a new Lucene commit point.
-
retentionobject -
sizenumber | string · default: 512mb -
This controls the total size of translog files to keep for each shard. Keeping more translog files increases the chance of performing an operation based sync when recovering a replica. If the translog files are not sufficient, replica recovery will fall back to a file based sync. This setting is ignored, and should not be set, if soft deletes are enabled. Soft deletes are enabled by default in indices created in Elasticsearch versions 7.0.0 and later.
-
ageunion oneOf · default: 12h -
This controls the maximum duration for which translog files are kept by each shard. Keeping more translog files increases the chance of performing an operation based sync when recovering replicas. If the translog files are not sufficient, replica recovery will fall back to a file based sync. This setting is ignored, and should not be set, if soft deletes are enabled. Soft deletes are enabled by default in indices created in Elasticsearch versions 7.0.0 and later.
-
Values:
-10 -
analysisobject -
analyzermap string to oneOf -
<string>union oneOf -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
languageenumrequired -
Values:
ArabicArmenianBasqueCatalanDanishDutchEnglishEstonianFinnishFrenchGermanGerman2HungarianItalianIrishKpLithuanianLovinsNorwegianPorterPortugueseRomanianRussianSerbianSpanishSwedishTurkish -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
char_filtermap string to oneOf -
<string>union oneOf -
filtermap string to oneOf -
<string>union oneOf -
common_wordsstring[] -
A list of tokens. The filter generates bigrams for these tokens. Either this or the
common_words_pathparameter is required. -
common_words_pathstring -
Path to a file containing a list of tokens. The filter generates bigrams for these tokens. This path must be absolute or relative to the
configlocation. The file must be UTF-8 encoded. Each token in the file must be separated by a line break. Either this or thecommon_wordsparameter is required. -
articlesstring[] -
List of elisions to remove. To be removed, the elision must be at the beginning of a token and be immediately followed by an apostrophe. Both the elision and apostrophe are removed. For custom
elisionfilters, either this parameter orarticles_pathmust be specified. -
articles_pathstring -
Path to a file that contains a list of elisions to remove. This path must be absolute or relative to the
configlocation, and the file must be UTF-8 encoded. Each elision in the file must be separated by a line break. To be removed, the elision must be at the beginning of a token and be immediately followed by an apostrophe. Both the elision and apostrophe are removed. For customelisionfilters, either this parameter orarticlesmust be specified. -
max_subword_sizenumber -
Maximum subword character length. Longer subword tokens are excluded from the output. Defaults to
15. -
min_subword_sizenumber -
Minimum subword character length. Shorter subword tokens are excluded from the output. Defaults to
2. -
min_word_sizenumber -
Minimum word character length. Shorter word tokens are excluded from the output. Defaults to
5. -
word_liststring[] -
A list of subwords to look for in the token stream. If found, the subword is included in the token output. Either this parameter or
word_list_pathmust be specified. -
word_list_pathstring -
Path to a file that contains a list of subwords to find in the token stream. If found, the subword is included in the token output. This path must be absolute or relative to the config location, and the file must be UTF-8 encoded. Each token in the file must be separated by a line break. Either this parameter or
word_listmust be specified. -
hyphenation_patterns_pathstringrequired -
Path to an Apache FOP (Formatting Objects Processor) XML hyphenation pattern file. This path must be absolute or relative to the
configlocation. Only FOP v1.2 compatible files are supported. -
keep_wordsstring[] -
List of words to keep. Only tokens that match words in this list are included in the output. Either this parameter or
keep_words_pathmust be specified. -
keep_words_pathstring -
Path to a file that contains a list of words to keep. Only tokens that match words in this list are included in the output. This path must be absolute or relative to the
configlocation, and the file must be UTF-8 encoded. Each word in the file must be separated by a line break. Either this parameter orkeep_wordsmust be specified. -
ignore_caseboolean -
If
true, matching for thekeywordsandkeywords_pathparameters ignores letter case. Defaults tofalse. -
keywordsunion string | string[] -
Array of keywords. Tokens that match these keywords are not stemmed. This parameter,
keywords_path, orkeywords_patternmust be specified. You cannot specify this parameter andkeywords_pattern. -
keywords_pathstring -
Path to a file that contains a list of keywords. Tokens that match these keywords are not stemmed. This path must be absolute or relative to the
configlocation, and the file must be UTF-8 encoded. Each word in the file must be separated by a line break. This parameter,keywords, orkeywords_patternmust be specified. You cannot specify this parameter andkeywords_pattern. -
filler_tokenstring -
String used in shingles as a replacement for empty positions that do not contain a token. This filler token is only used in shingles, not original unigrams. Defaults to an underscore (
_). -
max_shingle_sizenumber | string -
Maximum number of tokens to concatenate when creating shingles. Defaults to
2. -
min_shingle_sizenumber | string -
Minimum number of tokens to concatenate when creating shingles. Defaults to
2. -
output_unigramsboolean -
If
true, the output includes the original input tokens. Iffalse, the output only includes shingles; the original input tokens are removed. Defaults totrue. -
ignore_caseboolean -
If
true, stop word matching is case insensitive. For example, iftrue, a stop word of the matches and removesThe,THE, orthe. Defaults tofalse. -
remove_trailingboolean -
If
true, the last token of a stream is removed if it’s a stop word. Defaults totrue. -
stopwordsunion oneOf -
Language value, such as
_arabic_or_thai_. Defaults to_english_. -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
lenientboolean -
If
trueignores errors while parsing the synonym rules. It is important to note that only those synonym rules which cannot get parsed are ignored. Defaults to the value of theupdateablesetting. -
synonyms_pathstring -
Used to provide a synonym file. This path must be absolute or relative to the
configlocation. -
lenientboolean -
If
trueignores errors while parsing the synonym rules. It is important to note that only those synonym rules which cannot get parsed are ignored. Defaults to the value of theupdateablesetting. -
synonyms_pathstring -
Used to provide a synonym file. This path must be absolute or relative to the
configlocation. -
catenate_allboolean -
If
true, the filter produces catenated tokens for chains of alphanumeric characters separated by non-alphabetic delimiters. Defaults tofalse. -
catenate_numbersboolean -
If
true, the filter produces catenated tokens for chains of numeric characters separated by non-alphabetic delimiters. Defaults tofalse. -
catenate_wordsboolean -
If
true, the filter produces catenated tokens for chains of alphabetical characters separated by non-alphabetic delimiters. Defaults tofalse. -
generate_number_partsboolean -
If
true, the filter includes tokens consisting of only numeric characters in the output. Iffalse, the filter excludes these tokens from the output. Defaults totrue. -
generate_word_partsboolean -
If
true, the filter includes tokens consisting of only alphabetical characters in the output. Iffalse, the filter excludes these tokens from the output. Defaults totrue. -
preserve_originalboolean | string -
If
true, the filter includes the original version of any split tokens in the output. This original version includes non-alphanumeric delimiters. Defaults tofalse. -
protected_words_pathstring -
Path to a file that contains a list of tokens the filter won’t split. This path must be absolute or relative to the
configlocation, and the file must be UTF-8 encoded. Each token in the file must be separated by a line break. -
split_on_case_changeboolean -
If
true, the filter splits tokens at letter case transitions. For example: camelCase -> [ camel, Case ]. Defaults totrue. -
split_on_numericsboolean -
If
true, the filter splits tokens at letter-number transitions. For example: j2se -> [ j, 2, se ]. Defaults totrue. -
stem_english_possessiveboolean -
If
true, the filter removes the English possessive ('s) from the end of each token. For example: O'Neil's -> [ O, Neil ]. Defaults totrue. -
type_tablestring[] -
Array of custom type mappings for characters. This allows you to map non-alphanumeric characters as numeric or alphanumeric to avoid splitting on those characters.
-
type_table_pathstring -
Path to a file that contains custom type mappings for characters. This allows you to map non-alphanumeric characters as numeric or alphanumeric to avoid splitting on those characters.
-
catenate_allboolean -
If
true, the filter produces catenated tokens for chains of alphanumeric characters separated by non-alphabetic delimiters. Defaults tofalse. -
catenate_numbersboolean -
If
true, the filter produces catenated tokens for chains of numeric characters separated by non-alphabetic delimiters. Defaults tofalse. -
catenate_wordsboolean -
If
true, the filter produces catenated tokens for chains of alphabetical characters separated by non-alphabetic delimiters. Defaults tofalse. -
generate_number_partsboolean -
If
true, the filter includes tokens consisting of only numeric characters in the output. Iffalse, the filter excludes these tokens from the output. Defaults totrue. -
generate_word_partsboolean -
If
true, the filter includes tokens consisting of only alphabetical characters in the output. Iffalse, the filter excludes these tokens from the output. Defaults totrue. -
preserve_originalboolean | string -
If
true, the filter includes the original version of any split tokens in the output. This original version includes non-alphanumeric delimiters. Defaults tofalse. -
protected_words_pathstring -
Path to a file that contains a list of tokens the filter won’t split. This path must be absolute or relative to the
configlocation, and the file must be UTF-8 encoded. Each token in the file must be separated by a line break. -
split_on_case_changeboolean -
If
true, the filter splits tokens at letter case transitions. For example: camelCase -> [ camel, Case ]. Defaults totrue. -
split_on_numericsboolean -
If
true, the filter splits tokens at letter-number transitions. For example: j2se -> [ j, 2, se ]. Defaults totrue. -
stem_english_possessiveboolean -
If
true, the filter removes the English possessive ('s) from the end of each token. For example: O'Neil's -> [ O, Neil ]. Defaults totrue. -
stopwordsunion oneOf -
Values:
_arabic__armenian__basque__bengali__brazilian__bulgarian__catalan__cjk__czech__danish__dutch__english__estonian__finnish__french__galician__german__greek__hindi__hungarian__indonesian__irish__italian__latvian__lithuanian__norwegian__persian__portuguese__romanian__russian__serbian__sorani__spanish__swedish__thai__turkish__none_ -
max_subword_sizenumber -
Maximum subword character length. Longer subword tokens are excluded from the output. Defaults to
15. -
min_subword_sizenumber -
Minimum subword character length. Shorter subword tokens are excluded from the output. Defaults to
2. -
min_word_sizenumber -
Minimum word character length. Shorter word tokens are excluded from the output. Defaults to
5. -
word_liststring[] -
A list of subwords to look for in the token stream. If found, the subword is included in the token output. Either this parameter or
word_list_pathmust be specified. -
word_list_pathstring -
Path to a file that contains a list of subwords to find in the token stream. If found, the subword is included in the token output. This path must be absolute or relative to the config location, and the file must be UTF-8 encoded. Each token in the file must be separated by a line break. Either this parameter or
word_listmust be specified. -
settingsobject -
Same fields as
settings -
similaritymap string to oneOf -
Configure custom similarity settings to customize how search results are scored.
-
<string>union oneOf -
mappingobject -
Enable or disable dynamic mapping for an index.
-
total_fieldsobject -
limitnumber | string · default: 1000 -
The maximum number of fields in an index. Field and object mappings, as well as field aliases count towards this limit. The limit is in place to prevent mappings and searches from becoming too large. Higher values can lead to performance degradations and memory issues, especially in clusters with a high load or few resources.
-
ignore_dynamic_beyond_limitboolean | string · default: false -
This setting determines what happens when a dynamically mapped field would exceed the total fields limit. When set to false (the default), the index request of the document that tries to add a dynamic field to the mapping will fail with the message Limit of total fields [X] has been exceeded. When set to true, the index request will not fail. Instead, fields that would exceed the limit are not added to the mapping, similar to dynamic: false. The fields that were not added to the mapping will be added to the _ignored field.
-
nested_fieldsobject -
limitnumber · default: 50 -
The maximum number of distinct nested mappings in an index. The nested type should only be used in special cases, when arrays of objects need to be queried independently of each other. To safeguard against poorly designed mappings, this setting limits the number of unique nested types per index.
-
field_name_lengthobject -
limitnumber -
Setting for the maximum length of a field name. This setting isn’t really something that addresses mappings explosion but might still be useful if you want to limit the field length. It usually shouldn’t be necessary to set this setting. The default is okay unless a user starts to add a huge number of fields with really long names. Default is
Long.MAX_VALUE(no limit). -
indexing_pressureobject -
Configure indexing back pressure limits.
-
memoryobjectrequired -
limitnumber -
Number of outstanding bytes that may be consumed by indexing requests. When this limit is reached or exceeded, the node will reject new coordinating and primary operations. When replica operations consume 1.5x this limit, the node will reject new replica operations. Defaults to 10% of the heap.
-
storeobject -
The store module allows you to control how index data is stored and accessed on disk.
-
typeunion anyOf -
Supported values include:
fs: Default file system implementation. This will pick the best implementation depending on the operating environment, which is currently hybridfs on all supported systems but is subject to change.niofs: The NIO FS type stores the shard index on the file system (maps to Lucene NIOFSDirectory) using NIO. It allows multiple threads to read from the same file concurrently. It is not recommended on Windows because of a bug in the SUN Java implementation and disables some optimizations for heap memory usage.mmapfs: The MMap FS type stores the shard index on the file system (maps to Lucene MMapDirectory) by mapping a file into memory (mmap). Memory mapping uses up a portion of the virtual memory address space in your process equal to the size of the file being mapped. Before using this class, be sure you have allowed plenty of virtual address space.hybridfs: The hybridfs type is a hybrid of niofs and mmapfs, which chooses the best file system type for each type of file based on the read access pattern. Currently only the Lucene term dictionary, norms and doc values files are memory mapped. All other files are opened using Lucene NIOFSDirectory. Similarly to mmapfs be sure you have allowed plenty of virtual address space.
-
Values:
fsniofsmmapfshybridfs -
allow_mmapboolean -
You can restrict the use of the mmapfs and the related hybridfs store type via the setting node.store.allow_mmap. This is a boolean setting indicating whether or not memory-mapping is allowed. The default is to allow it. This setting is useful, for example, if you are in an environment where you can not control the ability to create a lot of memory maps so you need disable the ability to use memory-mapping.
type: binary
type: boolean
type: {dynamic_type}
type: join
type: keyword
type: match_only_text
A variant of text that trades scoring and efficiency of positional queries for space efficiency. This field effectively stores data the same way as a text field that only indexes documents (index_options: docs) and disables norms (norms: false). Term queries perform as fast if not faster as on text fields, however queries that need positions such as the match_phrase query perform slower as they need to look at the _source document to verify whether a phrase matches. All queries return constant scores that are equal to 1.0.
type: percolator
type: rank_feature
type: rank_features
type: search_as_you_type
type: text
type: version
type: wildcard
type: date_nanos
type: date
type: aggregate_metric_double
type: dense_vector
type: flattened
type: nested
type: object
type: passthrough
type: rank_vectors
Technical preview
type: semantic_text
type: sparse_vector
type: completion
type: constant_keyword
type: counted_keyword
type: alias
type: histogram
type: ip
type: murmur3
type: token_count
type: geo_point
type: geo_shape
The geo_shape data type facilitates the indexing of and searching with arbitrary geo shapes such as rectangles
and polygons.
type: point
type: shape
The shape data type facilitates the indexing of and searching with arbitrary x, y cartesian shapes such as
rectangles and polygons.
type: byte
type: double
type: float
type: half_float
type: integer
type: long
type: scaled_float
type: short
type: unsigned_long
type: date_range
type: double_range
type: float_range
type: integer_range
type: ip_range
type: long_range
type: icu_collation_keyword
type: custom
type: fingerprint
type: nori
type: pattern
type: standard
type: stop
type: icu_analyzer
type: kuromoji
type: snowball
type: arabic
type: armenian
type: basque
type: bengali
type: brazilian
type: bulgarian
type: catalan
type: chinese
type: cjk
type: czech
type: danish
type: dutch
type: english
type: estonian
type: finnish
type: french
type: galician
type: german
type: greek
type: hindi
type: hungarian
type: indonesian
type: irish
type: italian
type: latvian
type: lithuanian
type: norwegian
type: persian
type: portuguese
type: romanian
type: russian
type: serbian
type: sorani
type: spanish
type: swedish
type: turkish
type: thai
type: mapping
type: pattern_replace
type: icu_normalizer
type: asciifolding
type: cjk_bigram
type: common_grams
type: condition
type: delimited_payload
type: edge_ngram
type: elision
type: fingerprint
type: hunspell
type: hyphenation_decompounder
type: keep_types
type: keep
type: keyword_marker
type: length
type: limit
type: lowercase
type: min_hash
type: multiplexer
type: ngram
type: nori_part_of_speech
type: pattern_capture
type: pattern_replace
type: predicate_token_filter
type: scandinavian_normalization
type: shingle
type: snowball
type: stemmer_override
type: stop
type: synonym_graph
type: synonym
type: truncate
type: unique
type: word_delimiter_graph
type: word_delimiter
type: ja_stop
type: kuromoji_stemmer
type: kuromoji_readingform
type: kuromoji_part_of_speech
type: icu_collation
type: icu_folding
type: icu_normalizer
type: icu_transform
type: phonetic
type: dictionary_decompounder
type: DFI
type: DFR
type: IB