You're viewing version 2.15 of the OpenSearch documentation. This version is no longer maintained. For the latest version, see the current documentation. For information about OpenSearch version maintenance, see Release Schedule and Maintenance Policy.
CAT thread pool
Introduced 1.0
The CAT thread pool operation lists the active, queued, and rejected threads of different thread pools on each node.
Path and HTTP methods
GET _cat/thread_pool
URL parameters
All CAT thread pool URL parameters are optional.
In addition to the common URL parameters, you can specify the following parameters:
| Parameter | Type | Description |
|---|---|---|
| local | Boolean | Whether to return information from the local node only instead of from the cluster manager node. Default is false. |
| cluster_manager_timeout | Time | The amount of time to wait for a connection to the cluster manager node. Default is 30 seconds. |
Example requests
The following example request gives information about thread pools on all nodes:
GET _cat/thread_pool?v
If you want to get information for more than one thread pool, separate the thread pool names with commas:
GET _cat/thread_pool/thread_pool_name_1,thread_pool_name_2,thread_pool_name_3
If you want to limit the information to a specific thread pool, add the thread pool name after your query:
GET _cat/thread_pool/<thread_pool_name>?v
Example response
node_name name active queue rejected
odfe-node2 ad-batch-task-threadpool 0 0 0
odfe-node2 ad-threadpool 0 0 0
odfe-node2 analyze 0 0 0s