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Posted to issues@tez.apache.org by "Sungwoo (JIRA)" <ji...@apache.org> on 2019/04/16 09:00:00 UTC

[jira] [Created] (TEZ-4061) InputAttemptIdentifier and CompositeInputAttemptIdentifier cannot be compared for equality

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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