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https://issues.apache.org/jira/browse/HDFS-3625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410568#comment-13410568
]
Eli Collins commented on HDFS-3625:
-----------------------------------
Some further BN/test work is required as after adding the necesssary check the
test still fails:
{noformat}
2012-07-10 10:12:24,648 FATAL namenode.NameNode
(NameNode.java:doImmediateShutdown(1279)) - Error encountered requiring NN
shutdown. Shutting down immediately.
java.lang.IllegalStateException: Cannot start writing at txid 1 when there is a
stream available for read:
org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream@6178b9ce
at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.openForWrite(FSEditLog.java:277)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startActiveServices(FSNamesystem.java:642)
at
org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.startActiveServices(NameNode.java:1303)
at
org.apache.hadoop.hdfs.server.namenode.ha.ActiveState.enterState(ActiveState.java:61)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:593)
at
org.apache.hadoop.hdfs.server.namenode.BackupNode.<init>(BackupNode.java:87)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1122)
at
org.apache.hadoop.hdfs.server.namenode.TestBackupNode.startBackupNode(TestBackupNode.java:94)
at
org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpoint(TestBackupNode.java:327)
at
org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpointNode(TestBackupNode.java:116)
{noformat}
> FSN#startActiveServices assumes standby services started
> ---------------------------------------------------------
>
> Key: HDFS-3625
> URL: https://issues.apache.org/jira/browse/HDFS-3625
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
>
> TestBackupNode#testCheckpointNode fails because the following code in
> FSN#startActiveServices NPEs (resulting in a System.exit) because
> editLogTailer is set when starting standby services and if ha is not enabled
> we go directly to the active state. Looks like it should be wrapped with an
> haEnabled check.
> {code}
> LOG.info("Catching up to latest edits from old active before " +
> "taking over writer role in edits logs.");
> editLogTailer.catchupDuringFailover();
> {code}
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