lifulong opened a new pull request, #2477:
URL: https://github.com/apache/celeborn/pull/2477
…on after flush
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### What changes were proposed in this pull request?
check exception and throw it if exist after CelebornMapOutputCollector flush
### Why are the changes needed?
For small shuffle mr job, shuffle push maybe only happend one time when map
task finished deal all task records and do flush before close
MapOutputCollector
In this case, CelebornMapOutputCollector should checkException after flush,
and throw exceptions when flush has exception, if not, job status is wrong
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
test use mr job
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