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https://issues.apache.org/jira/browse/HBASE-9038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jean-Daniel Cryans updated HBASE-9038:
--------------------------------------
Status: Patch Available (was: Open)
> Compaction WALEdit gives NPEs with Replication enabled
> ------------------------------------------------------
>
> Key: HBASE-9038
> URL: https://issues.apache.org/jira/browse/HBASE-9038
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.95.1
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Blocker
> Fix For: 0.98.0, 0.95.2
>
> Attachments: HBASE-9038.patch
>
>
> If you enable replication, and get a compaction requested, you'll see this in
> the logs:
> {noformat}
> 2013-07-24 15:16:38,831 ERROR
> [regionserver60020-smallCompactions-1374704194254]
> regionserver.CompactSplitThread: Compaction failed Request =
> regionName=TestTable,00000000000000000000057204,1374704192994.6bb7c58d1e6cc99fbfe04592e44fbc35.,
> storeName=info, fileCount=4, fileSize=335.1m (115.4m, 115.4m, 69.0m, 35.2m),
> priority=6, time=1374704194257521000
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.replication.regionserver.Replication.visitLogEntryBeforeWrite(Replication.java:215)
> at
> org.apache.hadoop.hbase.regionserver.wal.FSHLog.doWrite(FSHLog.java:1204)
> at
> org.apache.hadoop.hbase.regionserver.wal.FSHLog.append(FSHLog.java:890)
> at
> org.apache.hadoop.hbase.regionserver.wal.FSHLog.append(FSHLog.java:840)
> at
> org.apache.hadoop.hbase.regionserver.wal.HLogUtil.writeCompactionMarker(HLogUtil.java:262)
> at
> org.apache.hadoop.hbase.regionserver.HStore.writeCompactionWalRecord(HStore.java:1026)
> at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:973)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.compact(HRegion.java:1278)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.run(CompactSplitThread.java:465)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
> at java.lang.Thread.run(Thread.java:680)
> {noformat}
> It's a simple case of filtering METAFAMILY like this:
> bq. if (kv.matchingFamily(WALEdit.METAFAMILY)) continue;
> and add a unit test.
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