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From "Sungwoo (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-4061) InputAttemptIdentifier and CompositeInputAttemptIdentifier cannot be compared for equality
Date Tue, 16 Apr 2019 09:00:00 GMT
Sungwoo created TEZ-4061:
----------------------------

             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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