# Cpu load high ，cpu usage by thread 'elasticsearch\[node-1\]\[management\] **URL:** \ **Category:** Elasticsearch\ **Created:** [November 4, 2016, 3:39am UTC](https://discuss.elastic.co/t/cpu-load-high-cpu-usage-by-thread-elasticsearch-node-1-management/64968 "2016-11-04T03:39:49Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![changxy](https://avatars.discourse-cdn.com/v4/letter/c/2acd7d/32.png) [@changxy](https://discuss.elastic.co/u/changxy)\ **Post date:** [November 4, 2016, 3:39am UTC](https://discuss.elastic.co/t/cpu-load-high-cpu-usage-by-thread-elasticsearch-node-1-management/64968/1 "2016-11-04T03:39:49Z")
what is meaning of management thread ？ and possible reasons > \_nodes/hot\_threads > 85.2% (426ms out of 500ms) cpu usage by thread 'elasticsearch[node-2][management][T#5]' > 6/10 snapshots sharing following 38 elements > java.io.UnixFileSystem.canonicalize0(Native Method) > java.io.UnixFileSystem.canonicalize(UnixFileSystem.java:172) > java.io.File.getCanonicalPath(File.java:618) > 85.4% (427.2ms out of 500ms) cpu usage by thread 'elasticsearch[node-1][management][T#5]' > 2/10 snapshots sharing following 31 elements > sun.nio.fs.UnixNativeDispatcher.stat0(Native Method) > sun.nio.fs.UnixNativeDispatcher.stat(UnixNativeDispatcher.java:286) ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [November 4, 2016, 8:52am UTC](https://discuss.elastic.co/t/cpu-load-high-cpu-usage-by-thread-elasticsearch-node-1-management/64968/2 "2016-11-04T08:52:04Z")
Depends. What version are you on? How big is your cluster? ---
**Author:** ![changxy](https://avatars.discourse-cdn.com/v4/letter/c/2acd7d/32.png) [@changxy](https://discuss.elastic.co/u/changxy)\ **Post date:** [November 4, 2016, 9:06am UTC](https://discuss.elastic.co/t/cpu-load-high-cpu-usage-by-thread-elasticsearch-node-1-management/64968/3 "2016-11-04T09:06:21Z")
version 2.3.0, 2 data node,1 client node ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 10:06pm UTC](https://discuss.elastic.co/t/cpu-load-high-cpu-usage-by-thread-elasticsearch-node-1-management/64968/4 "2017-07-05T22:06:37Z")