Two small impromevents to pipes
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Key: HADOOP-3932
URL: https://issues.apache.org/jira/browse/HADOOP-3932
Project: Hadoop Core
Issue Type: Improvement
Components: pipes
Affects Versions: 0.17.1
Environment: n/a
Reporter: Leon Mergen
Working with the ..mapred.pipes class a bit today, I found one bug and one
possible interface improvement:
- Application.java in its constructor assumes that
DistributedCache.getLocalCacheFiles () always returns non-zero, and returns an
array with at least one element -- appropriate checks and exceptions should be
thrown here.
- Submitter.java provides a "submitJob ()" method, yet it acts like it's a
runJob method (and also invokes mapred.JobClient.runClient ()) -- it should
provide two interface methods, one runJob () and one submitJob (), who act just
like the JobClient counterparts.
Here is the small patch that implements both changes, based on the 0.17.1
release source -- just in case anyone cares for this minor improvement.
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