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https://issues.apache.org/jira/browse/TAJO-89?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jihoon Son resolved TAJO-89.
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Resolution: Fixed
> 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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