[jira] [Resolved] (KAFKA-5734) Heap (Old generation space) gradually increase

["Matthias J. Sax (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-5734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias J. Sax resolved KAFKA-5734.
------------------------------------
    Resolution: Fixed

> Heap (Old generation space) gradually increase
> ----------------------------------------------
>
>                 Key: KAFKA-5734
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5734
>             Project: Kafka
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 0.10.2.0
>         Environment: ubuntu 14.04 / java 1.7.0
>            Reporter: jang
>            Priority: Major
>         Attachments: heap-log.xlsx, jconsole.png
>
>
> I set up kafka server on ubuntu with 4GB ram.
> Heap ( Old generation space ) size is increasing gradually like attached excel file which recorded gc info in 1 minute interval.
> Finally OU occupies 2.6GB and GC expend too much time ( And out of memory exception )
> kafka process argumens are below.
> _java -Xmx3000M -Xms2G -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+DisableExplicitGC -Djava.awt.headless=true -Xloggc:/usr/local/kafka/bin/../logs/kafkaServer-gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/usr/local/kafka/bin/../logs -Dlog4j.configuration=file:/usr/local/kafka/bin/../config/log4j.properties_



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