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https://issues.apache.org/jira/browse/HBASE-15808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281536#comment-15281536
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Matteo Bertozzi commented on HBASE-15808:
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+1
> Reduce potential bulk load intermediate space usage and waste
> -------------------------------------------------------------
>
> Key: HBASE-15808
> URL: https://issues.apache.org/jira/browse/HBASE-15808
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 1.2.0
> Reporter: Jerry He
> Assignee: Jerry He
> Priority: Minor
> Fix For: 2.0.0, 1.3.0, 1.4.0, 1.2.2
>
> Attachments: HBASE-15808-v2.patch, HBASE-15808-v3.patch,
> HBASE-15808.patch
>
>
> If the bulk load input files do not match the existing region boudaries, the
> files will be splitted.
> In the unfornate cases where the files need to be splitted multiple times,
> the process can consume unnecessary space and can even cause out of space.
> Here is over-simplified example.
> Orinal size of input files:
> consumed space: size --> 300GB
> After a round of splits:
> consumed space: size + tmpspace1 --> 300GB + 300GB
> After another round of splits:
> consumded space: size + tmpspace1 + tmpspace2 --> 300GB + 300GB + 300GB
> ..
> Currently we don't do any cleanup in the process. At least all the
> intermediate tmpspace (not the last one) can be deleted in the process.
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