# Rollover: from Hot to Warm nodes - limit per 'max\_concurrent\_file\_chunks' and/or 'max\_bytes\_per\_sec'? **URL:** \ **Category:** Elasticsearch\ **Created:** [May 17, 2020, 3:29pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998 "2020-05-17T15:29:57Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Rysiu](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rysiu/32/61919_2.png) [@Rysiu](https://discuss.elastic.co/u/Rysiu)\ **Post date:** [May 17, 2020, 3:29pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/1 "2020-05-17T15:29:57Z")
I have hot phase indexes on certain elasticsearch nodes. Is it possible to set the index rollover data transmission rate on data flow: hot nodes =\> warm nodes? I mean, 'max\_concurrent\_file\_chunks' and/or 'max\_bytes\_per\_sec' as for recovery? What possibilities do we have to define and manipulate the speed of such data flow? ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [May 17, 2020, 3:33pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/2 "2020-05-17T15:33:33Z")
Yes, those two settings are the ones to use. "Recovery" is the name of the process used to move shards between nodes so these settings apply. ---
**Author:** ![Rysiu](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rysiu/32/61919_2.png) [@Rysiu](https://discuss.elastic.co/u/Rysiu)\ **Post date:** [May 18, 2020, 3:49pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/3 "2020-05-18T15:49:44Z")
Is there a limit to the maximum amount of 'max\_concurrent\_file\_chunks' per cluster? Is there any option? ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [May 18, 2020, 4:00pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/4 "2020-05-18T16:00:20Z")
Yes, the limit for `max_concurrent_file_chunks` is 5. ---
**Author:** ![Rysiu](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rysiu/32/61919_2.png) [@Rysiu](https://discuss.elastic.co/u/Rysiu)\ **Post date:** [May 18, 2020, 4:03pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/5 "2020-05-18T16:03:24Z")
But I mean limit not per node, but per cluster. Is it possible to set this limit per cluster? For example, equal to 8? ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [May 18, 2020, 4:18pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/6 "2020-05-18T16:18:25Z")
No, there's no cluster-wide limit. I'm not sure I understand why you would want such a thing. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 15, 2020, 4:18pm UTC](https://discuss.elastic.co/t/rollover-from-hot-to-warm-nodes-limit-per-max-concurrent-file-chunks-and-or-max-bytes-per-sec/232998/7 "2020-06-15T16:18:26Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.