[HDFS-3690] BlockPlacementPolicyDefault incorrectly casts LOG

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Hadoop Flags: Reviewed
• Assignee: Eli Collins
• Reporter: Eli Collins
• Created: 19/Jul/12 22:12
• Updated: 11/Oct/12 17:46
• Resolved: 19/Jul/12 23:05

Description

The hadoop-tools tests, eg TestCopyListing, fails with

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)

caused by this cast

  private static final String enableDebugLogging =
    "For more information, please enable DEBUG log level on "
    + ((Log4JLogger)LOG).getLogger().getName();

Issue Links

• relates to: HDFS-3368 Missing blocks due to bad DataNodes coming up and down.