Re: High CPU on nodes

2016-12-21 Thread Nate McCall
Z [mailto:arodr...@gmail.com] > *Sent:* Saturday, December 17, 2016 5:18 AM > *To:* user@cassandra.apache.org > *Subject:* Re: High CPU on nodes > > > > Hi, > > > > What does 'nodetool netstats' looks like on those nodes? > > > > *Its not doing any stream

RE: High CPU on nodes

2016-12-21 Thread Anubhav Kale
CIL From: Alain RODRIGUEZ [mailto:arodr...@gmail.com] Sent: Saturday, December 17, 2016 5:18 AM To: user@cassandra.apache.org Subject: Re: High CPU on nodes Hi, What does 'nodetool netstats' looks like on those nodes? Its not doing any streaming. we have 30GB heap How is the JVM

Re: High CPU on nodes

2016-12-17 Thread Alain RODRIGUEZ
Hi, What does 'nodetool netstats' looks like on those nodes? we have 30GB heap > How is the JVM / GC doing? Are you using G1GC or CMS? This setting would be bad for CMS. You can use this tool to understand were the CPU is being used https://github.com/aragozin/jvm-tools/blob/master/sjk-core/COM