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Date: Mon, 7 May 2012 17:26:49 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-3374) hdfs' TestDelegationToken fails
 intermittently with a race condition
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    [ https://issues.apache.org/jira/browse/HDFS-3374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269792#comment-13269792 ] 

Todd Lipcon commented on HDFS-3374:
-----------------------------------

Why does this merit an exception to the policy that we commit things to trunk first and the maintaining branch only after it is in trunk?
                
> hdfs' TestDelegationToken fails intermittently with a race condition
> --------------------------------------------------------------------
>
>                 Key: HDFS-3374
>                 URL: https://issues.apache.org/jira/browse/HDFS-3374
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 1.0.3
>
>         Attachments: HDFS-3374-branch-1.0.patch, HDFS-3374.patch, hdfs-3374.patch
>
>
> The testcase is failing because the MiniDFSCluster is shutdown before the secret manager can change the key, which calls system.exit with no edit streams available.
> {code}
>     [junit] 2012-05-04 15:03:51,521 WARN  common.Storage (FSImage.java:updateRemovedDirs(224)) - Removing storage dir /home/horton/src/hadoop/build/test/data/dfs/name1
>     [junit] 2012-05-04 15:03:51,522 FATAL namenode.FSNamesystem (FSEditLog.java:fatalExit(388)) - No edit streams are accessible
>     [junit] java.lang.Exception: No edit streams are accessible
>     [junit]     at org.apache.hadoop.hdfs.server.namenode.FSEditLog.fatalExit(FSEditLog.java:388)
>     [junit]     at org.apache.hadoop.hdfs.server.namenode.FSEditLog.exitIfNoStreams(FSEditLog.java:407)
>     [junit]     at org.apache.hadoop.hdfs.server.namenode.FSEditLog.removeEditsAndStorageDir(FSEditLog.java:432)
>     [junit]     at org.apache.hadoop.hdfs.server.namenode.FSEditLog.removeEditsStreamsAndStorageDirs(FSEditLog.java:468)
>     [junit]     at org.apache.hadoop.hdfs.server.namenode.FSEditLog.logSync(FSEditLog.java:1028)
>     [junit]     at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.logUpdateMasterKey(FSNamesystem.java:5641)
>     [junit]     at org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSecretManager.logUpdateMasterKey(DelegationTokenSecretManager.java:286)
>     [junit]     at org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager.updateCurrentKey(AbstractDelegationTokenSecretManager.java:150)
>     [junit]     at org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager.rollMasterKey(AbstractDelegationTokenSecretManager.java:174)
>     [junit]     at org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager$ExpiredTokenRemover.run(AbstractDelegationTokenSecretManager.java:385)
>     [junit]     at java.lang.Thread.run(Thread.java:662)
>     [junit] Running org.apache.hadoop.hdfs.security.TestDelegationToken
>     [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
>     [junit] Test org.apache.hadoop.hdfs.security.TestDelegationToken FAILED (crashed)
> {code}

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