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Posted to hdfs-dev@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2013/10/07 00:13:42 UTC

[jira] [Created] (HDFS-5313) NameNode hangs during startup trying to apply OP_ADD_PATH_BASED_CACHE_DIRECTIVE.

Chris Nauroth created HDFS-5313:
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             Summary: NameNode hangs during startup trying to apply OP_ADD_PATH_BASED_CACHE_DIRECTIVE.
                 Key: HDFS-5313
                 URL: https://issues.apache.org/jira/browse/HDFS-5313
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: HDFS-4949
            Reporter: Chris Nauroth


During namenode startup, if the edits contain a {{OP_ADD_PATH_BASED_CACHE_DIRECTIVE}} for an existing file, then the process hangs while trying to apply the op.  This is because of a call to {{FSDirectory#setCacheReplication}}, which calls {{FSDirectory#waitForReady}}, but of course nothing is ever going to mark the directory ready, because it's still in the process of loading.



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