opensearch-docs-cn/_api-reference/cat/cat-thread-pool.md

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---
layout: default
title: CAT thread pool
parent: CAT API
nav_order: 75
has_children: false
---
# CAT thread pool
Introduced 1.0
{: .label .label-purple }
The CAT thread pool operation lists the active, queued, and rejected threads of different thread pools on each node.
## Example
```
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/v/thread_pool_name_1,thread_pool_name_2,thread_pool_name_3
```
## 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]({{site.url}}{{site.baseurl}}/api-reference/cat/index), you can specify the following parameter:
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.
## Response
```json
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
```