# Throttle a reindex operation

**POST /_reindex/{task_id}/_rethrottle**

Change the number of requests per second for a particular reindex operation.
For example:

```
POST _reindex/r1A2WoRbTwKZ516z6NEs5A:36619/_rethrottle?requests_per_second=-1
```

Rethrottling that speeds up the query takes effect immediately.
Rethrottling that slows down the query will take effect after completing the current batch.
This behavior prevents scroll timeouts.


## Servers
- http://api.example.com: http://api.example.com ()


## Authentication methods
- Api key auth
- Basic auth
- Bearer auth


## Parameters

### Path parameters
- **task_id** (string)
  The task identifier, which can be found by using the tasks API.

### Query parameters
- **requests_per_second** (number)
  The throttle for this request in sub-requests per second.
  It can be either `-1` to turn off throttling or any decimal number like `1.7` or `12` to throttle to that level.


## Responses
### 200


#### Body: application/json (object)
- **nodes** (object)



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