[jira] [Created] (MAPREDUCE-3556) Resource Leaks in key flows

[Devaraj K (Created) (JIRA)]

Resource Leaks in key flows
---------------------------

                 Key: MAPREDUCE-3556
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3556
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 0.23.0
            Reporter: Devaraj K
            Assignee: Devaraj K


{code:title=MapTask.java|borderStyle=solid}

{code} 

{code:xml} 
 if (combinerRunner == null || numSpills < minSpillsForCombine) {
            Merger.writeFile(kvIter, writer, reporter, job);
          } else {
            combineCollector.setWriter(writer);
            combinerRunner.combine(kvIter, combineCollector);
          }

          //close
          writer.close();
{code} 



{code:title=InputSampler.java|borderStyle=solid}

{code} 

{code:xml} 
 for(int i = 1; i < numPartitions; ++i) {
      int k = Math.round(stepSize * i);
      while (last >= k && comparator.compare(samples[last], samples[k]) == 0) {
        ++k;
      }
      writer.append(samples[k], nullValue);
      last = k;
    }
    writer.close();{code} 


The key flows have potential resource leaks. 

{code:title=JobSplitWriter.java|borderStyle=solid}

{code} 

{code:xml} 

    SplitMetaInfo[] info = writeNewSplits(conf, splits, out);
    out.close();

    SplitMetaInfo[] info = writeOldSplits(splits, out);
    out.close();
{code} 

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