Cluster Info API | Elasticsearch Guide

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Cluster Info APIedit

This functionality is in technical preview and may be changed or removed in a future release. Elastic will apply best effort to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.

Returns cluster information.

Requestedit

GET /_info/<target>

Prerequisitesedit

If the Elasticsearch security features are enabled, you must have the monitor or manage cluster privilege to use this API.

Descriptionedit

You can use the Cluster Info API to retrieve information of a cluster.

Path parametersedit

<target>

(String) Limits the information returned to the specific target. A comma-separated list of the following options:

_all: All the information available. Can not be mixed with other targets.
http: HTTP connection information.
ingest: Ingest information.
thread_pool: Statistics about each thread pool, including current size, queue size and rejected tasks.
script: Contains script statistics of the cluster.

Response bodyedit

cluster_name: (string) Name of the cluster. Based on the Cluster name setting setting.

http

(object) Contains http information for the cluster.

Properties of http

current_open

(integer) Current number of open HTTP connections for the cluster.

total_opened

(integer) Total number of HTTP connections opened for the cluster.

clients

(array of objects) Information on current and recently-closed HTTP client connections. Clients that have been closed longer than the http.client_stats.closed_channels.max_age setting will not be represented here.

Properties of clients

id: (integer) Unique ID for the HTTP client.
agent: (string) Reported agent for the HTTP client. If unavailable, this property is not included in the response.
local_address: (string) Local address for the HTTP connection.
remote_address: (string) Remote address for the HTTP connection.
last_uri: (string) The URI of the client’s most recent request.
x_forwarded_for: (string) Value from the client’s x-forwarded-for HTTP header. If unavailable, this property is not included in the response.
x_opaque_id: (string) Value from the client’s x-opaque-id HTTP header. If unavailable, this property is not included in the response.
opened_time_millis: (integer) Time at which the client opened the connection.
closed_time_millis: (integer) Time at which the client closed the connection if the connection is closed.
last_request_time_millis: (integer) Time of the most recent request from this client.
request_count: (integer) Number of requests from this client.
request_size_bytes: (integer) Cumulative size in bytes of all requests from this client.

ingest

(object) Contains ingest information for the cluster.

Properties of ingest

total

(object) Contains information about ingest operations for the cluster.

Properties of total

count: (integer) Total number of documents ingested across the cluster.
time: (time value) Total time spent preprocessing ingest documents across the cluster.
time_in_millis: (integer) Total time, in milliseconds, spent preprocessing ingest documents across the cluster.
current: (integer) Total number of documents currently being ingested.
failed: (integer) Total number of failed ingest operations across the cluster.

pipelines

(object) Contains information about ingest pipelines for the cluster.

Properties of pipelines

<pipeline_id>

(object) Contains information about the ingest pipeline.

Properties of <pipeline_id>

count

(integer) Number of documents preprocessed by the ingest pipeline.

time

(time value) Total time spent preprocessing documents in the ingest pipeline.

time_in_millis

(integer) Total time, in milliseconds, spent preprocessing documents in the ingest pipeline.

failed

(integer) Total number of failed operations for the ingest pipeline.

processors

(array of objects) Contains information for the ingest processors for the ingest pipeline.

Properties of processors

<processor>

(object) Contains information for the ingest processor.

Properties of <processor>

count: (integer) Number of documents transformed by the processor.
time: (time value) Time spent by the processor transforming documents.
time_in_millis: (integer) Time, in milliseconds, spent by the processor transforming documents.
current: (integer) Number of documents currently being transformed by the processor.
failed: (integer) Number of failed operations for the processor.

thread_pool

(object) Contains information about the thread pools of the cluster.

Properties of thread_pool

<thread_pool_name>

(object) Contains information about the thread pool of the cluster with name <thread_pool_name>.

Properties of <thread_pool_name>

threads: (integer) Number of threads in the thread pool.
queue: (integer) Number of tasks in queue for the thread pool.
active: (integer) Number of active threads in the thread pool.
rejected: (integer) Number of tasks rejected by the thread pool executor.
largest: (integer) Highest number of active threads in the thread pool.
completed: (integer) Number of tasks completed by the thread pool executor.

script

(object) Contains script statistics of the cluster.

Properties of script

compilations: (integer) Total number of inline script compilations performed by the cluster.
compilations_history: (object) Contains the recent history of script compilations.

Properties of compilations_history

5m: (long) The number of script compilations in the last five minutes.
15m: (long) The number of script compilations in the last fifteen minutes.
24h: (long) The number of script compilations in the last twenty-four hours.

cache_evictions: (integer) Total number of times the script cache has evicted old data.
cache_evictions_history: (object) Contains the recent history of script cache evictions.

Properties of cache_evictions

5m: (long) The number of script cache evictions in the last five minutes.
15m: (long) The number of script cache evictions in the last fifteen minutes.
24h: (long) The number of script cache evictions in the last twenty-four hours.

compilation_limit_triggered: (integer) Total number of times the script compilation circuit breaker has limited inline script compilations.

Examplesedit

# returns all stats info of the cluster
GET /_info/_all

# returns the http info of the cluster
GET /_info/http

# returns the http info of the cluster
GET /_info/ingest

# returns the thread_pool info of the cluster
GET /_info/thread_pool

# returns the script info of the cluster
GET /_info/script

# returns the http and ingest info of the cluster
GET /_info/http,ingest

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