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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-1059) ConcurrentModificationException in notifyChangedReadersObservers
Date Sat, 13 Dec 2008 00:42:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack resolved HBASE-1059.
--------------------------

       Resolution: Fixed
    Fix Version/s: 0.19.0

Committed fix

> ConcurrentModificationException in notifyChangedReadersObservers
> ----------------------------------------------------------------
>
>                 Key: HBASE-1059
>                 URL: https://issues.apache.org/jira/browse/HBASE-1059
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.19.0
>
>
> {code}
> org.apache.hadoop.hbase.DroppedSnapshotException: region: .META.,,1
>         at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:876)
>         at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:772)
>         at org.apache.hadoop.hbase.regionserver.MemcacheFlusher.flushRegion(MemcacheFlusher.java:220)
>         at org.apache.hadoop.hbase.regionserver.MemcacheFlusher.run(MemcacheFlusher.java:130)
> Caused by: java.util.ConcurrentModificationException
>         at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
>         at java.util.HashMap$KeyIterator.next(HashMap.java:828)
>         at org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:734)
>         at org.apache.hadoop.hbase.regionserver.HStore.updateReaders(HStore.java:722)
>         at org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:691)
>         at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:627)
>         at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:863)
>         ... 3 more
> {code}

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