Hi everyone,

Recently I've noticed that most of the nodes have OpsCenter agents running at 300% CPU. Each node has 4 cores, so agents are using 75% of total available CPU.

We're running 5 nodes with OpenSource Cassandra 2.1.8 in AWS using Community AMI. OpsCenter version is 5.1.3. We're using Oracle Java version 1.8.0_45.

31501 cassandr  20   0 3599m 296m  14m S  339  2.0  48:20.39 /opt/jdk/jdk1.8.0_45/bin/java -Xmx128M -Djclouds.mpu.parts.magnitude=100000 -Djclouds.mpu.parts.size=16777216 -Dopscenter.ssl.trustStore=/var/lib/datastax-agent/ssl/agentKeyStore -Dopscenter.ssl.keyStore=/var/lib/datastax-agent/ssl/agentKeyStore -Dopscenter.ssl.keyStorePassword=opscenter -Dagent-pidfile=/var/run/datastax-agent/datastax-agent.pid -Dlog4j.configuration=file:/etc/datastax-agent/log4j.properties -Djava.security.auth.login.config=/etc/datastax-agent/kerberos.config -jar datastax-agent-5.1.3-standalone.jar /var/lib/datastax-agent/conf/address.yaml

The logs from the agent looks strange to me: https://gist.github.com/kluyg/21f78af7adff0a940ed3

The cluster itself seems to be fine, the load is small, nothing bad in Cassandra system.log.

Does anyone know what to tune to bring it back to normal?