Rajesh Balamohan created TEZ-2732:
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Summary: DefaultSorter throws ArrayIndex exceptions on 2047 Mb
size sort buffers
Key: TEZ-2732
URL: https://issues.apache.org/jira/browse/TEZ-2732
Project: Apache Tez
Issue Type: Bug
Reporter: Rajesh Balamohan
{noformat}
kvbuffer.length = 2146435072 (2047 MB)
Corner case: bufIndex=2026133899, kvbidx=523629312.
distkvi = mod - i + j = 2146435072 - 2026133899 + 523629312 = 643930485
newPos = (2026133899 + (max(.., min(643930485/2, 271128624))) (This would
overflow)
{noformat}
Would be good to restrict the max allowed sort buffer to 1800 instead of 2047.
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