[jira] [Created] (TEZ-1930) Merger (MemToDiskMerge) can exceed memory limits in a corner case

[Siddharth Seth (JIRA)]

Siddharth Seth created TEZ-1930:
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             Summary: Merger (MemToDiskMerge) can exceed memory limits in a 
corner case
                 Key: TEZ-1930
                 URL: https://issues.apache.org/jira/browse/TEZ-1930
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Siddharth Seth


Merger.reserve allows one segment to go over the allocated memory. If the 
segment size is large, this can be problematic.



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