Sungwoo created TEZ-4061:
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Summary: InputAttemptIdentifier and
CompositeInputAttemptIdentifier cannot be compared for equality
Key: TEZ-4061
URL: https://issues.apache.org/jira/browse/TEZ-4061
Project: Apache Tez
Issue Type: Bug
Affects Versions: 0.9.1
Reporter: Sungwoo
Fix For: 0.10.1
Attachments: diff.diff
InputFailedEvent creates InputAttemtpIdentifier. Since
InputAttemptIdentifier.equals() tests getClass(), comparing
InputAttemptIdentifier and CompositeAttemptIdentifier always returns false. As
a result, the obsolete event reported in InputFailedEvent never matches
CompositeAttemptIdentifier contained in ShuffleManager.obsoletedInputs and
ShuffleScheduler.obsoleteInputs.
When the input of a Task becomes lost, this leads to many redundant reports of
fetch failures.
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