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Added clusters stats API 

Signed-off-by: keithhc2 <keithhc2@users.noreply.github.com>
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keithhc2 2022-02-11 14:38:12 -08:00
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---
layout: default
title: Cluster stats
parent: REST API reference
nav_order: 65
---
# Cluster stats
Introduced 1.0
{: .label .label-purple }
The cluster stats API operation returns statistics about your cluster.
## Examples
```json
GET _cluster/stats/nodes/_master
```
## Path and HTTP methods
```json
GET _cluster/stats
GET _cluster/stats/nodes/<node-filters>
```
## URL parameters
All cluster stats parameters are optional.
Parameter | Type | Description
:--- | :--- | :---
&lt;node-filters&gt; | List | A comma-separated list of node-filters that OpenSearch uses to filter results. Available options are `all`, `_local`, `_master`, a node name or ID, `master:true`, `master:false`, `data:true`, `data:false`, `ingest:true`, `ingest:false`, `voting_only:true`, `voting_only:false`, `ml:true`, `ml:false`, `coordinating_only:true`, `coordinating_only:false`, and &lt;custom node attributes&gt; : &lt;attribute values&gt; pairs.
## Response
```json
{
"_nodes": {
"total": 1,
"successful": 1,
"failed": 0
},
"cluster_name": "opensearch-cluster",
"cluster_uuid": "QravFieJS_SlZJyBMcDMqQ",
"timestamp": 1644607845054,
"status": "yellow",
"indices": {
"count": 114,
"shards": {
"total": 121,
"primaries": 60,
"replication": 1.0166666666666666,
"index": {
"shards": {
"min": 1,
"max": 2,
"avg": 1.0614035087719298
},
"primaries": {
"min": 0,
"max": 2,
"avg": 0.5263157894736842
},
"replication": {
"min": 0.0,
"max": 1.0,
"avg": 0.008771929824561403
}
}
},
"docs": {
"count": 134263,
"deleted": 115
},
"store": {
"size_in_bytes": 70466547,
"reserved_in_bytes": 0
},
"fielddata": {
"memory_size_in_bytes": 664,
"evictions": 0
},
"query_cache": {
"memory_size_in_bytes": 0,
"total_count": 1,
"hit_count": 0,
"miss_count": 1,
"cache_size": 0,
"cache_count": 0,
"evictions": 0
},
"completion": {
"size_in_bytes": 0
},
"segments": {
"count": 341,
"memory_in_bytes": 3137244,
"terms_memory_in_bytes": 2488992,
"stored_fields_memory_in_bytes": 167672,
"term_vectors_memory_in_bytes": 0,
"norms_memory_in_bytes": 346816,
"points_memory_in_bytes": 0,
"doc_values_memory_in_bytes": 133764,
"index_writer_memory_in_bytes": 0,
"version_map_memory_in_bytes": 0,
"fixed_bit_set_memory_in_bytes": 1112,
"max_unsafe_auto_id_timestamp": 1644269449096,
"file_sizes": {}
},
"mappings": {
"field_types": [
{
"name": "alias",
"count": 1,
"index_count": 1
},
{
"name": "binary",
"count": 1,
"index_count": 1
},
{
"name": "boolean",
"count": 87,
"index_count": 22
},
{
"name": "date",
"count": 185,
"index_count": 91
},
{
"name": "double",
"count": 5,
"index_count": 2
},
{
"name": "float",
"count": 4,
"index_count": 1
},
{
"name": "geo_point",
"count": 4,
"index_count": 3
},
{
"name": "half_float",
"count": 12,
"index_count": 1
},
{
"name": "integer",
"count": 144,
"index_count": 29
},
{
"name": "ip",
"count": 2,
"index_count": 1
},
{
"name": "keyword",
"count": 1939,
"index_count": 109
},
{
"name": "knn_vector",
"count": 1,
"index_count": 1
},
{
"name": "long",
"count": 158,
"index_count": 92
},
{
"name": "nested",
"count": 25,
"index_count": 10
},
{
"name": "object",
"count": 420,
"index_count": 91
},
{
"name": "text",
"count": 1768,
"index_count": 102
}
]
},
"analysis": {
"char_filter_types": [],
"tokenizer_types": [],
"filter_types": [],
"analyzer_types": [],
"built_in_char_filters": [],
"built_in_tokenizers": [],
"built_in_filters": [],
"built_in_analyzers": [
{
"name": "english",
"count": 1,
"index_count": 1
}
]
}
},
"nodes": {
"count": {
"total": 1,
"coordinating_only": 0,
"data": 1,
"ingest": 1,
"master": 1,
"remote_cluster_client": 1
},
"versions": [
"1.2.4"
],
"os": {
"available_processors": 6,
"allocated_processors": 6,
"names": [
{
"name": "Linux",
"count": 1
}
],
"pretty_names": [
{
"pretty_name": "Amazon Linux 2",
"count": 1
}
],
"mem": {
"total_in_bytes": 6232674304,
"free_in_bytes": 1452658688,
"used_in_bytes": 4780015616,
"free_percent": 23,
"used_percent": 77
}
},
"process": {
"cpu": {
"percent": 0
},
"open_file_descriptors": {
"min": 970,
"max": 970,
"avg": 970
}
},
"jvm": {
"max_uptime_in_millis": 108800629,
"versions": [
{
"version": "15.0.1",
"vm_name": "OpenJDK 64-Bit Server VM",
"vm_version": "15.0.1+9",
"vm_vendor": "AdoptOpenJDK",
"bundled_jdk": true,
"using_bundled_jdk": true,
"count": 1
}
],
"mem": {
"heap_used_in_bytes": 178956256,
"heap_max_in_bytes": 536870912
},
"threads": 112
},
"fs": {
"total_in_bytes": 62725623808,
"free_in_bytes": 28442726400,
"available_in_bytes": 25226010624
},
"plugins": [
{
"name": "opensearch-index-management",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch Index Management Plugin",
"classname": "org.opensearch.indexmanagement.IndexManagementPlugin",
"custom_foldername": "",
"extended_plugins": [
"opensearch-job-scheduler"
],
"has_native_controller": false
},
{
"name": "opensearch-security",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "Provide access control related features for OpenSearch 1.0.0",
"classname": "org.opensearch.security.OpenSearchSecurityPlugin",
"custom_foldername": "opensearch-security",
"extended_plugins": [],
"has_native_controller": false
},
{
"name": "opensearch-cross-cluster-replication",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch Cross Cluster Replication Plugin",
"classname": "org.opensearch.replication.ReplicationPlugin",
"custom_foldername": "",
"extended_plugins": [],
"has_native_controller": false
},
{
"name": "opensearch-job-scheduler",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch Job Scheduler plugin",
"classname": "org.opensearch.jobscheduler.JobSchedulerPlugin",
"custom_foldername": "",
"extended_plugins": [],
"has_native_controller": false
},
{
"name": "opensearch-anomaly-detection",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch anomaly detector plugin",
"classname": "org.opensearch.ad.AnomalyDetectorPlugin",
"custom_foldername": "",
"extended_plugins": [
"lang-painless",
"opensearch-job-scheduler"
],
"has_native_controller": false
},
{
"name": "opensearch-performance-analyzer",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch Performance Analyzer Plugin",
"classname": "org.opensearch.performanceanalyzer.PerformanceAnalyzerPlugin",
"custom_foldername": "",
"extended_plugins": [],
"has_native_controller": false
},
{
"name": "opensearch-reports-scheduler",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "Scheduler for Dashboards Reports Plugin",
"classname": "org.opensearch.reportsscheduler.ReportsSchedulerPlugin",
"custom_foldername": "",
"extended_plugins": [
"opensearch-job-scheduler"
],
"has_native_controller": false
},
{
"name": "opensearch-asynchronous-search",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "Provides support for asynchronous search",
"classname": "org.opensearch.search.asynchronous.plugin.AsynchronousSearchPlugin",
"custom_foldername": "",
"extended_plugins": [],
"has_native_controller": false
},
{
"name": "opensearch-knn",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch k-NN plugin",
"classname": "org.opensearch.knn.plugin.KNNPlugin",
"custom_foldername": "",
"extended_plugins": [
"lang-painless"
],
"has_native_controller": false
},
{
"name": "opensearch-alerting",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "Amazon OpenSearch alerting plugin",
"classname": "org.opensearch.alerting.AlertingPlugin",
"custom_foldername": "",
"extended_plugins": [
"lang-painless"
],
"has_native_controller": false
},
{
"name": "opensearch-observability",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch Plugin for OpenSearch Dashboards Observability",
"classname": "org.opensearch.observability.ObservabilityPlugin",
"custom_foldername": "",
"extended_plugins": [],
"has_native_controller": false
},
{
"name": "opensearch-sql",
"version": "1.2.4.0",
"opensearch_version": "1.2.4",
"java_version": "1.8",
"description": "OpenSearch SQL",
"classname": "org.opensearch.sql.plugin.SQLPlugin",
"custom_foldername": "",
"extended_plugins": [],
"has_native_controller": false
}
],
"network_types": {
"transport_types": {
"org.opensearch.security.ssl.http.netty.SecuritySSLNettyTransport": 1
},
"http_types": {
"org.opensearch.security.http.SecurityHttpServerTransport": 1
}
},
"discovery_types": {
"zen": 1
},
"packaging_types": [
{
"type": "tar",
"count": 1
}
],
"ingest": {
"number_of_pipelines": 0,
"processor_stats": {}
}
}
}
```
## Response body fields
Field | Description
:--- | :---
nodes | How many nodes returned in the response.
cluster_name | The cluster's name.
cluster_uuid | The cluster's uuid.
timestamp | The Unix epoch time of when the cluster was last refreshed.
status | The cluster's health status.
indices | Statistics about the indexes in the cluster.
indices.count | How many indexes are in the cluster.
indices.shards | Information about the cluster's shards.
indices.docs | How many documents are still in the cluster and how many documents are deleted.
indices.store | Information about the cluster's storage.
indices.fielddata | Information about the cluster's field data
indices.query_cache | Data about the cluster's query cache.
indices.completion | How many bytes in memory are used to complete operations.
indices.segments | Information about the cluster's segments, which are small Lucene indexes.
indices.mappings | Mappings within the cluster.
indices.analysis | Information about analyzers used in the cluster.
nodes | Statistics about the nodes in the cluster.
nodes.count | How many nodes were returned from the request.
nodes.versions | OpenSearch's version number.
nodes.os | Information abotu the operating systems used in the nodes.
nodes.process | The processes the returned nodes use.
nodes.jvm | Statistics about the Java Virtual Machines in use.
nodes.fs | The nodes' file storage.
nodes.plugins | The OpenSearch plugins integrated within the nodes.
nodes.network_types | The transport and HTTP networks within the nodes.
nodes.discovery_type | The method the nodes use to find other nodes within the cluster.
nodes.packaging_types | Information about the nodes' OpenSearch distribution.
nodes.ingest | Information about the nodes' ingest pipelines/nodes, if there are any.