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https://issues.apache.org/jira/browse/FLINK-2240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660334#comment-14660334
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ASF GitHub Bot commented on FLINK-2240:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/888#issuecomment-128442757
Oh, I forgot to add the closing message to the commit, so the ASF bot did
not close the pull request. Can you close the pull request manually (only you
as the owner can do that).
> Use BloomFilter to minimize probe side records which are spilled to disk in
> Hybrid-Hash-Join
> --------------------------------------------------------------------------------------------
>
> Key: FLINK-2240
> URL: https://issues.apache.org/jira/browse/FLINK-2240
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Reporter: Chengxiang Li
> Assignee: Chengxiang Li
> Priority: Minor
>
> In Hybrid-Hash-Join, while small table does not fit into memory, part of the
> small table data would be spilled to disk, and the counterpart partition of
> big table data would be spilled to disk in probe phase as well. If we build a
> BloomFilter while spill small table to disk during build phase, and use it to
> filter the big table records which tend to be spilled to disk, this may
> greatly reduce the spilled big table file size, and saved the disk IO cost
> for writing and further reading.
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