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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3612) Single namenode image directory config warning can be improved
Date Sun, 08 Jul 2012 14:40:33 GMT
Harsh J created HDFS-3612:

             Summary: Single namenode image directory config warning can be improved
                 Key: HDFS-3612
                 URL: https://issues.apache.org/jira/browse/HDFS-3612
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
    Affects Versions: 2.0.0-alpha
            Reporter: Harsh J
            Priority: Trivial

Currently, if you configure the NameNode to run with just one dfs.namenode.name.dir directory,
it prints:

12/07/08 20:00:22 WARN namenode.FSNamesystem: Only one dfs.namenode.name.dir directory configured
, beware data loss!{code}

We can improve this in a few ways as it is slightly ambiguous:
# Fix punctuation spacing, there's always a space after a punctuation mark but never before
# Perhaps the message is better printed with a reason of why it may cause a scare of data
loss. For instance, we can print "Detected a single storage directory in dfs.namenode.name.dir
configuration. Beware of dataloss due to lack of redundant storage directories" or so.

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