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https://issues.apache.org/jira/browse/HBASE-19432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16278758#comment-16278758
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Ted Yu commented on HBASE-19432:
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lgtm
> Roll the specified writer in HFileOutputFormat2
> -----------------------------------------------
>
> Key: HBASE-19432
> URL: https://issues.apache.org/jira/browse/HBASE-19432
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 3.0.0, 2.0.0-beta-1
> Reporter: Guangxu Cheng
> Assignee: Guangxu Cheng
> Attachments: HBASE-19432.master.001.patch
>
>
> {code}
> // If any of the HFiles for the column families has reached
> // maxsize, we need to roll all the writers
> if (wl != null && wl.written + length >= maxsize) {
> this.rollRequested = true;
> }
> {code}
> If we always roll all the writers, a large number of small files will be
> generated in the multi family or multi table scene.
> So we should only roll the specified writer which HFile has reached maxsize.
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