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https://issues.apache.org/jira/browse/HBASE-706?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans updated HBASE-706:
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Attachment: hbase-706-v1.patch
> On OOME, regionserver sticks around and doesn't go down with cluster
> --------------------------------------------------------------------
>
> Key: HBASE-706
> URL: https://issues.apache.org/jira/browse/HBASE-706
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Assignee: Jean-Daniel Cryans
> Fix For: 0.2.0
>
> Attachments: hbase-706-v1.patch, loader.jsp
>
>
> On John Gray cluster, an errant, massive, store file caused us OOME.
> Shutdown of cluster left this regionserver in place. A thread dump failed
> with OOME. Here is last thing in log:
> {code}
> 2008-06-25 03:21:55,111 INFO org.apache.hadoop.hbase.HRegionServer: worker
> thread exiting
> 2008-06-25 03:24:26,923 FATAL org.apache.hadoop.hbase.HRegionServer: Set stop
> flag in regionserver/0:0:0:0:0:0:0:0:60020.cacheFlusher
> java.lang.OutOfMemoryError: Java heap space
> at java.util.HashMap.<init>(HashMap.java:226)
> at java.util.HashSet.<init>(HashSet.java:103)
> at
> org.apache.hadoop.hbase.HRegionServer.getRegionsToCheck(HRegionServer.java:1789)
> at
> org.apache.hadoop.hbase.HRegionServer$Flusher.enqueueOptionalFlushRegions(HRegionServer.java:479)
> at
> org.apache.hadoop.hbase.HRegionServer$Flusher.run(HRegionServer.java:385)
> 2008-06-25 03:24:26,923 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 2 on 60020, call batchUpdate(items,,1214272763124, 9223372036854775807,
> [EMAIL PROTECTED]) from 192.168.249.230:38278: error: java.io.IOException:
> Server not running
> java.io.IOException: Server not running
> at
> org.apache.hadoop.hbase.HRegionServer.checkOpen(HRegionServer.java:1758)
> at
> org.apache.hadoop.hbase.HRegionServer.batchUpdate(HRegionServer.java:1547)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:616)
> at org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:413)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:901)
> {code}
> If I get an OOME just trying to threaddump, would seem to indicate we need to
> start keeping a little memory resevoir around for emergencies such as this
> just so we can shutdown clean.
> Moving this into 0.2. Seems important to fix if robustness is name of the
> game.
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