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https://issues.apache.org/jira/browse/HBASE-4101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13065575#comment-13065575
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stack commented on HBASE-4101:
------------------------------
>From up on list:
{code}
We aren't profiling right now. Here's what is in the hbase-env.sh
export TZ="US/Mountain"
export HBASE_OPTS="$HBASE_OPTS -XX:+UseConcMarkSweepGC
-XX:+CMSIncrementalMode -verbose:gc -XX:+PrintGCDetails
-XX:+PrintGCTimeStamps -Xloggc:/home/hadoop/gc-hbase.log "
export HBASE_MANAGES_ZK=false
export HBASE_PID_DIR=/home/hadoop
export HBASE_HEAPSIZE=10240
Java is
java version "1.6.0_17"
Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode)
We were planning an upgrade to 1.6.0_25 before we ran into this issue.
{code}
> Regionserver Deadlock
> ---------------------
>
> Key: HBASE-4101
> URL: https://issues.apache.org/jira/browse/HBASE-4101
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.90.3
> Environment: CentOS 5.5, CDH3 u0 Hadoop, HBase 0.90.3
> Reporter: Matt Davies
> Fix For: 0.90.4
>
> Attachments: jstack.txt
>
>
> We periodically see a situation where the regionserver process exists in the
> process list, zookeeper thread sends the keepalive so the master won't remove
> it from the active list, yet the regionserver will not serve data.
> Hadoop(cdh3u0), HBase 0.90.3 (Apache version), under load from an internal
> testing tool.
> Attached is the full JStack
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