Josh Elser created ACCUMULO-2234:
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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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