Throttle a reindex operation Generally available; Added in 2.4.0

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.

Path parameters

  • task_id string Required

    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 application/json
    Hide response attribute Show response attribute object
    • nodes object Required
POST /_reindex/{task_id}/_rethrottle 
POST _reindex/r1A2WoRbTwKZ516z6NEs5A:36619/_rethrottle?requests_per_second=-1

curl \
 --request POST 'http://api.example.com/_reindex/{task_id}/_rethrottle'

Documentation preview

This is a preview of your version @2025-06-09 which is not yet released.

View current documentation