High CPU usage

[hayatbehlim]

Parsing multi-line logs use high cpu near to 100%. There is no way to find out which grok filter taking more cpu cycle and How we can optimize it.
This issue looks similar to logstash grok issue
1.https://gist.github.com/jordansissel/4646783
2. https://groups.google.com/forum/#!topic/logstash-users/RB3bBnVp_-c

[anthonycorbacho]

@hayatbehlim thank you for opening this issue.

I will try to find some time and investigate why this is happening.

[hayatbehlim]

You are welcome @anthonycorbacho , If you need any implementation side help I'm ready for that.

[retoo]

@hayatbehlim we only parse the first line using with grok, whenever we can.

[ShawshankLin]

What reason is this？I have the same problem @hayatbehlim

[fbacchella]

Did you try to use that: https://blog.codecentric.de/en/2017/09/jvm-fire-using-flame-graphs-analyse-performance/ to identify the problem ?