# Runaway forking on ElasticSearch servers

**URL:** <https://discuss.elastic.co/t/runaway-forking-on-elasticsearch-servers/9471>\
**Category:** Elasticsearch\
**Created:** [October 25, 2012, 8:19am UTC](https://discuss.elastic.co/t/runaway-forking-on-elasticsearch-servers/9471 "2012-10-25T08:19:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![doug\_livesey](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/doug_livesey/32/2114_2.png) [@doug\_livesey](https://discuss.elastic.co/u/doug_livesey)\
**Post date:** [October 25, 2012, 8:19am UTC](https://discuss.elastic.co/t/runaway-forking-on-elasticsearch-servers/9471/1 "2012-10-25T08:19:37Z")

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Hi -- I'm running ES 0.19.9 across 3 servers whose fork rate usually sits  
under the 10 per-second mark. We've noticed for a while that these servers  
will, at seemingly random intervals, suddenly jump to a fork rate of  
between 90 & 140 per-second, and having jumped up, there they'll stay until  
ES is restarted.  
Could anyone advise me what might be causing this in ES, if I should worry  
about it, and what maybe I can do to stop it happening?  
Thanks very much,  
Doug.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:07am UTC](https://discuss.elastic.co/t/runaway-forking-on-elasticsearch-servers/9471/2 "2017-07-06T03:07:18Z")

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Closed on July 6, 2017, 3:07am UTC