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https://issues.apache.org/jira/browse/KYLIN-2269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15741084#comment-15741084
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kangkaisen commented on KYLIN-2269:
-----------------------------------

Hi, [~mahongbin]. 
please you review the patch when you have time, I am not sure this feature and  
{{shardBy}} feature whether could be used at the same time. if no, I will add 
the check. Thank you.

> Reduce MR memory usage for global dict
> --------------------------------------
>
>                 Key: KYLIN-2269
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2269
>             Project: Kylin
>          Issue Type: Improvement
>    Affects Versions: v1.6.0
>            Reporter: kangkaisen
>            Assignee: kangkaisen
>         Attachments: KYLIN-2269.patch
>
>
> currently, in {{Build Base Cuboid Data}}, if user use the global dict and the 
> global dict size significantly larger the mapper memory size, the 
> {{CachedTreeMap}} will load all values as much as possible and the soft 
> references object will stick around for a while when GC, So which will make 
> the {{Build Base Cuboid Data}}  mapper pause for a long time even could not  
> finish.



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