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Thread: High utilization by java

  1. #1
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    Unhappy [SOLVED] High utilization by java

    I installed a new Zimbra server (Release 8.0.3.GA.5664.UBUNTU12.64 UBUNTU12_64 FOSS edition) in a good server (Xeon / 16Gb RAM / hd sas).
    But without users access (out of production) , the CPU utilization reaches the maximum, with IDLE=0%, and the java processes are eating all the cpu utilization.

    Java process:
    31813 ? Sl 24:53 /opt/zimbra/java/bin/java -client -Xmx256m -Djava.net.preferIPv4Stack=true -Dzimbra.home=/opt/zimbra -Djava.library.path=/opt/zimbra/lib -Djava.ext.dirs=/opt/zimbra/java/jre/lib/ext:/opt/zimbra/lib/jars:/opt/zimbra/lib/ext-common:/opt/zimbra/lib/ext/clamscanner -Djava.io.tmpdir=/opt/zimbra/data/tmp -Dpython.cachedir=/opt/zimbra/data/tmp/jython-cachedir org.python.util.jython /opt/zimbra/libexec/zmconfigd

    Java version:
    java version "1.7.0_15"
    Java(TM) SE Runtime Environment (build 1.7.0_15-b03)
    Java HotSpot(TM) 64-Bit Server VM (build 23.7-b01, mixed mode)

    Thanks for any help !

    Alessandro
    Last edited by apintaudi; 05-30-2013 at 02:02 PM. Reason: Solved

  2. #2
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  3. #3
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    Default

    Thanks Raunaq !

    I tried a lot of options, like change zimbra crontab (increased the time of zmstatuslog, zmdisklog), disabled ipv6, stopped services stats, logger, snmp and increased zmmtaconfig_interval parameter.
    Since last 48 hours, the utilization is normal and I have only some parameters changed:

    ipv6: disabled
    stats and logger services: disabled
    zmlogprocess: disabled

    IŽll observe and work them to try isolate the source of problem !

    Thanks

  4. #4
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    Default

    Good to know that it helped.Please mark the thread as closed if you dont see the problem again with the steps you took.

    Lets Share our knowledge.

    Cheers,
    Raun

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