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https://issues.apache.org/jira/browse/HBASE-2786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell updated HBASE-2786:
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Fix Version/s: 0.20.6
> TestHLog.testSplit hangs
> ------------------------
>
> Key: HBASE-2786
> URL: https://issues.apache.org/jira/browse/HBASE-2786
> Project: HBase
> Issue Type: Bug
> Reporter: Jean-Daniel Cryans
> Assignee: Nicolas Spiegelberg
> Fix For: 0.20.6, 0.21.0
>
> Attachments: HBASE-2786.patch
>
>
> This a blocker had it blocks and times out Hudson.
> It seems that when we upgraded to latest of 0.20-append we got into a new
> situation where we can't recover a file that's empty if the original writer
> is still alive:
> {noformat}
> 2010-06-24 10:41:20,645 DEBUG [main] wal.HLog(1281): Splitting hlog 4 of 4:
> hdfs://localhost:64456/hbase/testSplit/.logs/hlog.1277401279534, length=0
> 2010-06-24 10:41:20,645 INFO [main] util.FSUtils(612): Recovering
> filehdfs://localhost:64456/hbase/testSplit/.logs/hlog.1277401279534
> 2010-06-24 10:41:20,647 WARN [IPC Server handler 5 on 64456]
> namenode.FSNamesystem(1156): DIR* NameSystem.startFile:
> failed to create file /hbase/testSplit/.logs/hlog.1277401279534 for
> DFSClient_-1981892617 on client 127.0.0.1 because current leaseholder is
> trying to recreate file
> ...
> 2010-06-24 10:42:24,919 WARN [IPC Server handler 0 on 64456]
> namenode.FSNamesystem(1156): DIR* NameSystem.startFile:
> failed to create file /hbase/testSplit/.logs/hlog.1277401279534 for
> DFSClient_-1981892617 on client 127.0.0.1 because current leaseholder is
> trying to recreate file.
> 2010-06-24 10:42:24,919 WARN [main] util.FSUtils(631): Waited 64274ms for
> lease recovery on
> hdfs://localhost:64456/hbase/testSplit/.logs/hlog.1277401279534:org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException:
>
> failed to create file /hbase/testSplit/.logs/hlog.1277401279534 for
> DFSClient_-1981892617 on client 127.0.0.1 because current leaseholder is
> trying to recreate file.
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInternal(FSNamesystem.java:1058)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.appendFile(FSNamesystem.java:1171)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.append(NameNode.java:396)
> {noformat}
> We could just not roll the latest log and it would probably fix the issue,
> but I wonder if we could change something in HDFS instead. Todd?
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