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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2240) Possible deadlock between LeaseRenewer and its factory
Date Tue, 09 Aug 2011 06:46:29 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081475#comment-13081475
] 

Tsz Wo (Nicholas), SZE commented on HDFS-2240:
----------------------------------------------

Ran unit tests.  The following failed.

- TestHDFSCLI expected hostname (letters and dots) but my machine used 127.0.0.1.  E.g.
{noformat}
2011-08-08 23:42:13,024 INFO  cli.CLITestHelper (CLITestHelper.java:displayResults(182)) -
            Expected output:   [^moveFromLocal: `hdfs://\w+[.a-z]*:[0-9]+/wrongdir': No such
file or directory]
2011-08-08 23:42:13,025 INFO  cli.CLITestHelper (CLITestHelper.java:displayResults(184)) -
              Actual output:   [moveFromLocal: `hdfs://127.0.0.1:50399/wrongdir': No such
file or directory]
{noformat}

- TestHDFSServerPorts failed with 
{noformat}
Directory /test/dfs/namesecondary is in an inconsistent state: checkpoint directory does not
exist or is not accessible.
org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /test/dfs/namesecondary
is in an inconsistent state: checkpoint directory does not exist or is not accessible.
	at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.recoverCreate(SecondaryNameNode.java:801)
{noformat}

- TestReplicationPolicy, TestCheckpoint, TestNNThroughputBenchmark, TestValidateConfigurationSettings
failed with
{noformat}
Cannot create directory /test/dfs/name/current
java.io.IOException: Cannot create directory /test/dfs/name/current
	at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:276)
	at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:492)
	...
{noformat}

The failures are not related to this.

> Possible deadlock between LeaseRenewer and its factory
> ------------------------------------------------------
>
>                 Key: HDFS-2240
>                 URL: https://issues.apache.org/jira/browse/HDFS-2240
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Critical
>             Fix For: 0.23.0
>
>         Attachments: h2240_20110808.patch, lease-renewer-cycle.png
>
>
> Lock cycle detected by jcarder

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