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https://issues.apache.org/jira/browse/KYLIN-1934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15407921#comment-15407921
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hongbin ma commented on KYLIN-1934:
-----------------------------------
nice findings! The patch is good, please merge to master
> 'Value not exist' During Cube Merging Caused by Empty Dict
> ----------------------------------------------------------
>
> Key: KYLIN-1934
> URL: https://issues.apache.org/jira/browse/KYLIN-1934
> Project: Kylin
> Issue Type: Bug
> Components: Job Engine
> Affects Versions: v1.5.4
> Reporter: Yerui Sun
> Assignee: Yerui Sun
> Priority: Critical
> Fix For: v1.5.4
>
> Attachments: KYLIN-1934.patch
>
>
> When cube merge, new dictionary will be created which consists of all values
> in old dictionaries.
> The values in old dicts is enumerated by MultipleDictionaryValueEnumerator.
> However, if the first dict is empty, the Enumerator.moveNext() will return
> false directly and ignore all values in other dicts, made the new dict is
> also empty.
> The cube merging will be failed because no values contained in the new dict.
> Not sure whether this issue related with KYLIN-1834 or not.
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