# Increasing number of open files descriptors in elastic search **URL:** \ **Category:** Elasticsearch\ **Created:** [November 26, 2014, 10:09am UTC](https://discuss.elastic.co/t/increasing-number-of-open-files-descriptors-in-elastic-search/20948 "2014-11-26T10:09:14Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Vijay\_Tiwary](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@Vijay\_Tiwary](https://discuss.elastic.co/u/Vijay_Tiwary)\ **Post date:** [November 26, 2014, 10:09am UTC](https://discuss.elastic.co/t/increasing-number-of-open-files-descriptors-in-elastic-search/20948/1 "2014-11-26T10:09:14Z")
I am increasing the number of open files descriptors for the root user by adding the following entry in /etc/sysctl.conf fs.file-max = 751864 However when I am restarting elastic search as root user then elastic search is starting with max\_file\_descriptors value as 4096 Why the above change is not visible to elastic search? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Jason\_Wee](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@Jason\_Wee](https://discuss.elastic.co/u/Jason_Wee)\ **Post date:** [November 26, 2014, 12:59pm UTC](https://discuss.elastic.co/t/increasing-number-of-open-files-descriptors-in-elastic-search/20948/2 "2014-11-26T12:59:55Z")
When the elasticsearch instance restarted, how do you check? Did you check using this command cat /proc//limits ? Jason On Wed, Nov 26, 2014 at 6:09 PM, Vijay Tiwary [vijaykr.tiwary@gmail.com](mailto:vijaykr.tiwary@gmail.com) wrote: > I am increasing the number of open files descriptors for the root user by > adding the following entry in /etc/sysctl.conf > > fs.file-max = 751864 > > However when I am restarting Elasticsearch as root user then elastic > search is starting with > > max\_file\_descriptors value as 4096 > > Why the above change is not visible to Elasticsearch? > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAHO4itzKNAa-fmXjrxf0CaL2PLCc26kwszPyKOSRwRuSsXLT2w%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAHO4itzKNAa-fmXjrxf0CaL2PLCc26kwszPyKOSRwRuSsXLT2w%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Vijay\_Tiwary](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@Vijay\_Tiwary](https://discuss.elastic.co/u/Vijay_Tiwary)\ **Post date:** [November 26, 2014, 5:37pm UTC](https://discuss.elastic.co/t/increasing-number-of-open-files-descriptors-in-elastic-search/20948/3 "2014-11-26T17:37:55Z")
Yes. By Using the same command the max open files count is 4096 On Wednesday, November 26, 2014 6:30:02 PM UTC+5:30, Jason Wee wrote: > When the elasticsearch instance restarted, how do you check? Did you check > using this command cat /proc//limits ? > > Jason > > On Wed, Nov 26, 2014 at 6:09 PM, Vijay Tiwary \<[vijaykr...@gmail.com](mailto:vijaykr...@gmail.com) > \\> wrote: > > > I am increasing the number of open files descriptors for the root user by > > adding the following entry in /etc/sysctl.conf > > > > fs.file-max = 751864 > > > > However when I am restarting Elasticsearch as root user then elastic > > search is starting with > > > > max\_file\_descriptors value as 4096 > > > > Why the above change is not visible to Elasticsearch? > > > > -- > > You received this message because you are subscribed to the Google Groups > > "elasticsearch" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/2393716f-1571-4b64-9572-9984ceef76b2%40googlegroups.com?utm_medium=email&utm_source=footer) > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/9103aabf-a7f6-4ca9-8624-d7781ec3f757%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/9103aabf-a7f6-4ca9-8624-d7781ec3f757%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 12:47am UTC](https://discuss.elastic.co/t/increasing-number-of-open-files-descriptors-in-elastic-search/20948/4 "2017-07-06T00:47:27Z")