yinan zhan created HADOOP-17918:
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             Summary: memory field in SequenceFile.Sorter java int overflow
                 Key: HADOOP-17918
                 URL: https://issues.apache.org/jira/browse/HADOOP-17918
             Project: Hadoop Common
          Issue Type: Bug
          Components: common
    Affects Versions: 3.3.1
            Reporter: yinan zhan


memory field in SequenceFile.Sorter, can cause run method in 
SequenceFile.Sorter.SortPass enter an endless loop.


If you set the "io.sort.mb" attribute to a value greater than 2050, as a result 
of
{code:java}
this.memory = conf.getInt(CommonConfigurationKeys.IO_SORT_MB_KEY, 
CommonConfigurationKeys.SEQ_IO_SORT_MB_DEFAULT) * 1024 * 1024;{code}
, memory field java int overflow, may become negative, so memoryLimit field in 
SequenceFile.Sorter.SortPass will be negative too, lead to run method in 
SequenceFile.Sorter.SortPass enter an endless loop.



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