We are using Elasticsearch-0.90.5 in our search application. We have 3
master nodes and 3 data nodes each with heap size of 4gb running in JDK
1.6. We have our Node Client running in our APP_SERVER. Elasticsearch
master gets HIGH_CPU frequently at least for every 20 days and it is not
coming down until that node is restarted. When i see thread dump, nothing
peculiar except GC. Number of GC threads is almost 20. GC MarkSweep
Frequency and GC ParNew Frequency is very very less when compared to
When i restart the master, system load becomes normal. But our APP_SERVER
gets HIGH_CPU. With our monitoring tool, we could detect some packets were
dropped due to network buffer overflow. When we restart APP_SERVER, all
things become normal.
For every 20 days, we have to restart our master and then our APP_SERVERS.
This has become our routine. I have attached Elasticsearch Masters thread
dump here https://gist.github.com/anonymous/10015420
We couldn't analyze why we are getting HIGH_CPU repeatedly. Any help in
resolving this issue will be appreciated.
Thanks in advance
PS : Elasticsearch version and JDK version cant be updated immediately in
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