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https://issues.apache.org/jira/browse/KYLIN-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14606883#comment-14606883
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Shaofeng SHI commented on KYLIN-839:
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Use dictionary to encode the whole lookup table, and is compitable for old
snapshots; Code change was submitted to 0.7 and 0.8 branches;
> Optimize Snapshot table memory usage
> -------------------------------------
>
> Key: KYLIN-839
> URL: https://issues.apache.org/jira/browse/KYLIN-839
> Project: Kylin
> Issue Type: Bug
> Reporter: liyang
> Assignee: Shaofeng SHI
> Labels: newbie
>
> Currently Snapshot memory structure is very inefficient. E.g. it goes OOM
> when building a cube with a lookup table of 272 MB with 3 GM java heap.
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