# Ulimit changes for prod node servers

**URL:** <https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949>\
**Category:** Elasticsearch\
**Created:** [January 29, 2020, 7:33am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949 "2020-01-29T07:33:03Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Ajay16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ajay16/32/61449_2.png) [@Ajay16](https://discuss.elastic.co/u/Ajay16)\
**Post date:** [January 29, 2020, 7:33am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949/1 "2020-01-29T07:33:03Z")

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Hey., Guys pls help me on this .,

What are the safe.,

U limit Changes for max processes in Elastic search nodes for prod servers

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 29, 2020, 8:04am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949/2 "2020-01-29T08:04:22Z")

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May be read [https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html)

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<div class="post-metadata">

**Author:** ![Ajay16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ajay16/32/61449_2.png) [@Ajay16](https://discuss.elastic.co/u/Ajay16)\
**Post date:** [January 29, 2020, 8:45am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949/3 "2020-01-29T08:45:12Z")

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Thanks @dadoonet., i think This is not,which i am looking for ., any other Solutions plz let me know.,

In `/etc/security/limits.conf`file

i need max range/ required range of max processes in elastic search nodes to trouble shoot alert disk I/O monitor alert

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 29, 2020, 10:28am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949/4 "2020-01-29T10:28:23Z")

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Is that what you are looking for? [https://www.elastic.co/guide/en/elasticsearch/reference/current/max-number-threads-check.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/max-number-threads-check.html)

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<div class="post-metadata">

**Author:** ![Ajay16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ajay16/32/61449_2.png) [@Ajay16](https://discuss.elastic.co/u/Ajay16)\
**Post date:** [January 30, 2020, 4:28am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949/5 "2020-01-30T04:28:51Z")

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Tq @dadoonet

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 27, 2020, 4:28am UTC](https://discuss.elastic.co/t/ulimit-changes-for-prod-node-servers/216949/6 "2020-02-27T04:28:55Z")

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