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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-17671) HBase Thrift2 OutOfMemory
Date Thu, 23 Feb 2017 15:37:45 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17671?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Elser resolved HBASE-17671.
--------------------------------
    Resolution: Invalid

[~wbb1975], JIRA isn't meant to be used to debug your problems. Questions phrased like this
are better suited for mailing lists. Please reserve use of JIRA for identifying deficiencies
in HBase and proposing a fix for them. The analysis of a problem should be done elsewhere.

Thanks.

> HBase Thrift2 OutOfMemory
> -------------------------
>
>                 Key: HBASE-17671
>                 URL: https://issues.apache.org/jira/browse/HBASE-17671
>             Project: HBase
>          Issue Type: Bug
>          Components: Thrift
>    Affects Versions: 0.98.6
>         Environment: Product
>            Reporter: Bingbing Wang
>            Priority: Critical
>         Attachments: ClassHistogram.png, hbase-site.xml, hbase-thrift2.log, log_gc.log.0.zip
>
>
> We have a HBase Thrift2 server deployed on Windows, basically the physical view looks
like:
> QueryEngine <==> HBase Thrift2 <==> HBase cluster
> Here QueryEngine is a C++ application, and HBase cluster is a about 50-nodes HBase cluster
(CDH 5.3.3, namely Hbase version 0.98.6).
> Our Thrift2 Java options looks like:
> -server -Xms4096m -Xmx4096m -XX:MaxDirectMemorySize=8192m -XX:+HeapDumpOnOutOfMemoryError
-XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:G1HeapRegionSize=4M -XX:InitiatingHeapOccupancyPercent=40
-XX:+PrintAdaptiveSizePolicy -XX:+PrintPromotionFailure -Dhbase.log.dir=d:\vhayu\thrift2\log
-verbose:gc -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -XX:PrintFLSStatistics=1
-Xloggc:log_gc.log -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=200M
-Dhbase.log.file=hbase-thrift2.log  -Dhbase.home.dir=D:\vhayu\thrift2\hbase0.98 -Dhbase.id.str=root
-Dlog4j.info -Dhbase.root.logger=INFO,DRFA -cp "d:\vhayu\thrift2\hbase0.98\*;d:\vhayu\thrift2\conf"
org.apache.hadoop.hbase.thrift2.ThriftServer -b 127.0.0.1 -f framed start
> The phenomenon of  the issue is that after some time running, Thrift2 sometimes reports
OOM and heap dump file (.hprof) file was generated. The consequence of this will always trigger
high latency form HBase cluster.



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