# Server keeps creating threads even though using fixed threadpool in config **URL:** \ **Category:** Elasticsearch\ **Created:** [October 27, 2011, 6:04pm UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708 "2011-10-27T18:04:38Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Xavier\_Stevens](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavier_stevens/32/3089_2.png) [@Xavier\_Stevens](https://discuss.elastic.co/u/Xavier_Stevens)\ **Post date:** [October 27, 2011, 6:04pm UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708/1 "2011-10-27T18:04:38Z")
We're using ES 0.17.9 and it seems that the server keeps creating more and more threads in the index pool. What is the default number of fixed threads? I grabbed this from YourKit which shows that most of them are all waiting on a lock in the queue. [http://xstevens.pastebin.mozilla.org/1365860](http://xstevens.pastebin.mozilla.org/1365860) ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [October 27, 2011, 6:22pm UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708/2 "2011-10-27T18:22:40Z")
Can you gist your config of the thread pool? You can set `threadpool` to DEBUG in the logging file, and see which threads pools get created, types, and sizes. On Thu, Oct 27, 2011 at 8:04 PM, Xavier [xavier.stevens@gmail.com](mailto:xavier.stevens@gmail.com) wrote: > We're using ES 0.17.9 and it seems that the server keeps creating more > and more threads in the index pool. What is the default number of > fixed threads? > > I grabbed this from YourKit which shows that most of them are all > waiting on a lock in the queue. > > [http://xstevens.pastebin.mozilla.org/1365860](http://xstevens.pastebin.mozilla.org/1365860) ---
**Author:** ![Xavier\_Stevens](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavier_stevens/32/3089_2.png) [@Xavier\_Stevens](https://discuss.elastic.co/u/Xavier_Stevens)\ **Post date:** [October 27, 2011, 6:30pm UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708/3 "2011-10-27T18:30:58Z")
Here's our config: [http://xstevens.pastebin.mozilla.org/1365875](http://xstevens.pastebin.mozilla.org/1365875) We don't specify specific sizes currently. -Xavier On Oct 27, 11:22 am, Shay Banon [kim...@gmail.com](mailto:kim...@gmail.com) wrote: > Can you gist your config of the thread pool? You can set `threadpool` to > DEBUG in the logging file, and see which threads pools get created, types, > and sizes. > > On Thu, Oct 27, 2011 at 8:04 PM, Xavier [xavier.stev...@gmail.com](mailto:xavier.stev...@gmail.com) wrote: > > > We're using ES 0.17.9 and it seems that the server keeps creating more > > and more threads in the index pool. What is the default number of > > fixed threads? > > > I grabbed this from YourKit which shows that most of them are all > > waiting on a lock in the queue. > > > [http://xstevens.pastebin.mozilla.org/1365860](http://xstevens.pastebin.mozilla.org/1365860) ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [October 27, 2011, 6:58pm UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708/4 "2011-10-27T18:58:25Z")
The default size for a fixed thread pool is the number of available processors \* 5. You can see what exact value it uses by changing the logging that I mentioned before. On Thu, Oct 27, 2011 at 8:30 PM, Xavier [xavier.stevens@gmail.com](mailto:xavier.stevens@gmail.com) wrote: > Here's our config: > > [http://xstevens.pastebin.mozilla.org/1365875](http://xstevens.pastebin.mozilla.org/1365875) > > We don't specify specific sizes currently. > > -Xavier > > On Oct 27, 11:22 am, Shay Banon [kim...@gmail.com](mailto:kim...@gmail.com) wrote: > > > Can you gist your config of the thread pool? You can set `threadpool` to > > DEBUG in the logging file, and see which threads pools get created, > > types, > > and sizes. > > > > On Thu, Oct 27, 2011 at 8:04 PM, Xavier [xavier.stev...@gmail.com](mailto:xavier.stev...@gmail.com) > > wrote: > > > > > We're using ES 0.17.9 and it seems that the server keeps creating more > > > and more threads in the index pool. What is the default number of > > > fixed threads? > > > > > I grabbed this from YourKit which shows that most of them are all > > > waiting on a lock in the queue. > > > > > [http://xstevens.pastebin.mozilla.org/1365860](http://xstevens.pastebin.mozilla.org/1365860) ---
**Author:** ![Xavier\_Stevens](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavier_stevens/32/3089_2.png) [@Xavier\_Stevens](https://discuss.elastic.co/u/Xavier_Stevens)\ **Post date:** [October 27, 2011, 7:21pm UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708/5 "2011-10-27T19:21:33Z")
That's makes sense then. Thanks! On Oct 27, 11:58 am, Shay Banon [kim...@gmail.com](mailto:kim...@gmail.com) wrote: > The default size for a fixed thread pool is the number of available > processors \* 5. You can see what exact value it uses by changing the logging > that I mentioned before. > > On Thu, Oct 27, 2011 at 8:30 PM, Xavier [xavier.stev...@gmail.com](mailto:xavier.stev...@gmail.com) wrote: > > > Here's our config: > > > [http://xstevens.pastebin.mozilla.org/1365875](http://xstevens.pastebin.mozilla.org/1365875) > > > We don't specify specific sizes currently. > > > -Xavier > > > On Oct 27, 11:22 am, Shay Banon [kim...@gmail.com](mailto:kim...@gmail.com) wrote: > > > > > Can you gist your config of the thread pool? You can set `threadpool` to > > > DEBUG in the logging file, and see which threads pools get created, > > > types, > > > and sizes. > > > > On Thu, Oct 27, 2011 at 8:04 PM, Xavier [xavier.stev...@gmail.com](mailto:xavier.stev...@gmail.com) > > > wrote: > > > > > > > We're using ES 0.17.9 and it seems that the server keeps creating more > > > > and more threads in the index pool. What is the default number of > > > > fixed threads? > > > > > I grabbed this from YourKit which shows that most of them are all > > > > waiting on a lock in the queue. > > > > > [http://xstevens.pastebin.mozilla.org/1365860](http://xstevens.pastebin.mozilla.org/1365860) ---
**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, 3:50am UTC](https://discuss.elastic.co/t/server-keeps-creating-threads-even-though-using-fixed-threadpool-in-config/5708/6 "2017-07-06T03:50:35Z")