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Posted to dev@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2009/01/02 19:31:44 UTC
[jira] Commented: (HBASE-1107) NPE in HStoreScanner.updateReaders
[ https://issues.apache.org/jira/browse/HBASE-1107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12660363#action_12660363 ]
Andrew Purtell commented on HBASE-1107:
---------------------------------------
Right above line 322 in HStoreScanner.java is this comment:
\\
{code}
// I think it is safe getting key from mem at this stage -- it shouldn't have
// been flushed yet
{code}
So I think this is no longer true.
> NPE in HStoreScanner.updateReaders
> ----------------------------------
>
> Key: HBASE-1107
> URL: https://issues.apache.org/jira/browse/HBASE-1107
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Critical
> Fix For: 0.19.0
>
>
> 2009-01-01 23:55:41,629 FATAL org.apache.hadoop.hbase.regionserver.MemcacheFlusher: Replay of hlog required. Forcing server shutdown
> org.apache.hadoop.hbase.DroppedSnapshotException: region: content,cff13605e2ea6ce0b221ac864687bf08,1230777531253
> at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:880)
> at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:773)
> at org.apache.hadoop.hbase.regionserver.MemcacheFlusher.flushRegion(MemcacheFlusher.java:227)
> at org.apache.hadoop.hbase.regionserver.MemcacheFlusher.run(MemcacheFlusher.java:137)
> Caused by: java.lang.NullPointerException
> at org.apache.hadoop.hbase.regionserver.HStoreScanner.updateReaders(HStoreScanner.java:322)
> at org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:737)
> at org.apache.hadoop.hbase.regionserver.HStore.updateReaders(HStore.java:725)
> at org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:694)
> at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:630)
> at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:865)
> ... 3 more
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