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https://issues.apache.org/jira/browse/HDFS-3690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13418760#comment-13418760
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Aaron T. Myers commented on HDFS-3690:
--------------------------------------
+1
> BlockPlacementPolicyDefault incorrectly casts LOG
> -------------------------------------------------
>
> Key: HDFS-3690
> URL: https://issues.apache.org/jira/browse/HDFS-3690
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
> Assignee: Eli Collins
> Priority: Blocker
> Attachments: hdfs-3690.txt
>
>
> The common tests, eg TestCopyListing, fails with
> {noformat}
> Caused by: java.lang.ClassCastException:
> org.apache.commons.logging.impl.SimpleLog cannot be cast to
> org.apache.commons.logging.impl.Log4JLogger
> at
> org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyDefault.<clinit>(BlockPlacementPolicyDefault.java:55)
> {noformat}
> caused by this cast
> {code}
> private static final String enableDebugLogging =
> "For more information, please enable DEBUG log level on "
> + ((Log4JLogger)LOG).getLogger().getName();
> {code}
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