Avi Shinnar created MAHOUT-1467:
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Summary: ClusterClassifier read/writePolicy leak file handles
Key: MAHOUT-1467
URL: https://issues.apache.org/jira/browse/MAHOUT-1467
Project: Mahout
Issue Type: Bug
Components: Clustering
Affects Versions: 0.9
Reporter: Avi Shinnar
org.apache.mahout.clustering.classify.ClusterClassifier.readPolicy/writePolicy
methods leak file handles.
This leak causes a serious problems in setups that reuse JVMs for multiple
tasks (as with "mapred.job.reuse.jvm.num.tasks").
In more detail:
The org.apache.mahout.clustering.classify.ClusterClassifier class has static
methods to read/write policies: readPolicy and writePolicy
Both of them open a SequenceFile.Reader/Writer and read/write from/to it, and
then neglect to close it.
suggested fix:
add a call to reader.close() before the return statement in readPolicy
and
add a call to writer.close() before the return statement in writePolicy
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