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From Mikhail Strebkov <streb...@gmail.com>
Subject Re: OpsCenter datastax-agent 300% CPU
Date Tue, 14 Jul 2015 19:01:17 GMT
OpsCenter 5.1.3 and datastax-agent-5.1.3-standalone.jar

On Tue, Jul 14, 2015 at 12:00 PM, Sebastian Estevez <
sebastian.estevez@datastax.com> wrote:

> What version of the agents and what version of OpsCenter are you running?
>
> I recently saw something like this and upgrading to matching versions
> fixed the issue.
> On Jul 14, 2015 2:58 PM, "Mikhail Strebkov" <strebkov@gmail.com> wrote:
>
>> 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.
>>
>> *  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND*
>> 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?
>>
>> Thanks,
>> Mikhail
>>
>

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