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https://issues.apache.org/jira/browse/HBASE-750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614607#action_12614607
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Andrew Purtell commented on HBASE-750:
--------------------------------------
2008-07-18 02:38:09,912 FATAL org.apache.hadoop.hbase.regionserver.Flusher:
Replay of hlog required. Forcing server restart
org.apache.hadoop.hbase.DroppedSnapshotException: region: t1,,1216346719330
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1050)
at
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:949)
at
org.apache.hadoop.hbase.regionserver.Flusher.flushRegion(Flusher.java:173)
at org.apache.hadoop.hbase.regionserver.Flusher.run(Flusher.java:91)
Caused by: java.lang.NullPointerException
at java.lang.String.<init>(String.java:516)
at org.apache.hadoop.hbase.util.Bytes.toString(Bytes.java:71)
at
org.apache.hadoop.hbase.regionserver.StoreFileScanner.updateReadersStoreFileScanner.java:379)
at
org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:677)
at
org.apache.hadoop.hbase.regionserver.HStore.updateReaders(HStore.java:664)
at
org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:634)
at
org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:565)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1037)
... 3 more
2008-07-18 02:38:09,913 INFO org.apache.hadoop.hbase.regionserver.Flusher:
regionserver/0:0:0:0:0:0:0:0:60020.cacheFlusher exiting
2008-07-18 02:38:10,594 INFO org.apache.hadoop.hbase.regionserver.LogRoller:
LogRoller exiting.
> NPE caused by StoreFileScanner.updateReaders
> --------------------------------------------
>
> Key: HBASE-750
> URL: https://issues.apache.org/jira/browse/HBASE-750
> Project: Hadoop HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.2.0
> Environment: CentOS 5.1 x86_64 / 64-bit JDK build 1.6.0_03-b05
> Reporter: Andrew Purtell
> Attachments: chart.png, columntest.java,
> HRegionServer-sjdc-atr-test-4.log, output.txt
>
>
> Running a test to determine performance during inserts of many 100,000s of
> cells into a single column family in a single row, the region server involved
> went down after taking a NPE:
> 2008-07-17 18:12:18,051 FATAL org.apache.hadoop.hbase.regionserver.Flusher:
> Replay of hlog required. Forcing server restart
> org.apache.hadoop.hbase.DroppedSnapshotException
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1040)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:942)
> at
> org.apache.hadoop.hbase.regionserver.Flusher.flushRegion(Flusher.java:174)
> at org.apache.hadoop.hbase.regionserver.Flusher.run(Flusher.java:93)
> Caused by: java.lang.NullPointerException
> at java.lang.String.<init>(String.java:516)
> at org.apache.hadoop.hbase.util.Bytes.toString(Bytes.java:71)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.updateReaders(StoreFileScanner.java:374)
> at
> org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:797)
> at
> org.apache.hadoop.hbase.regionserver.HStore.updateReaders(HStore.java:784)
> at
> org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:755)
> at
> org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:682)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1030)
> ... 3 more
> Any ideas about this one?
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