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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2234) Cannot run offline mapreduce over non-default instance.dfs.dir value
Date Tue, 21 Jan 2014 19:31:20 GMT
Josh Elser created ACCUMULO-2234:
------------------------------------

             Summary: Cannot run offline mapreduce over non-default instance.dfs.dir value
                 Key: ACCUMULO-2234
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2234
             Project: Accumulo
          Issue Type: Bug
    Affects Versions: 1.5.0, 1.4.4
            Reporter: Josh Elser
            Assignee: Josh Elser
            Priority: Blocker
             Fix For: 1.4.5, 1.5.1


The javadoc for setting up offline scans over RFiles (InputFormatBase.setScanOffline in 1.4
or InputFormatBase.setOfflineTableScan in 1.5) includes a nice little comment to the effect
that if a "non-standard" directory is used for Accumulo in HDFS (read as, if the default value
for instance.dfs.dir), accumulo-site.xml may need to be on the classpath for the mappers.

Best as I can tell, even if accumulo-site.xml is on the classpath, it makes no difference
as InputFormatBase is creating a new ZooKeeperInstance which, in turn, will only ever make
a DefaultConfiguration and never try to check if an accumulo-site.xml file is available. This
would make it impossible for a non-default value for instance.dfs.dir to ever be used.



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