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https://issues.apache.org/jira/browse/TAJO-89?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14065950#comment-14065950
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Jihoon Son commented on TAJO-89:
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Thanks [~mhthanh] and sorry for your confusion.
I forgot to close this issue.
> Type mismatch of the key of QueryUnitAttempt map and lastAttemptId in the
> QueryUnit class
> -----------------------------------------------------------------------------------------
>
> Key: TAJO-89
> URL: https://issues.apache.org/jira/browse/TAJO-89
> Project: Tajo
> Issue Type: Bug
> Components: query master
> Reporter: Jihoon Son
>
> Tajo maintains attempts of QueryUnit as a map of QueryUnitAttemptId and
> QueryUnitAttempt in the QueryUnit class.
> However, the lastAttemptId is defined as an Integer.
> This mismatch occurs a NPE when getLastAttempt() is called.
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