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https://issues.apache.org/jira/browse/HBASE-13985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14605101#comment-14605101
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Ted Yu commented on HBASE-13985:
--------------------------------
{code}
179 * Skip reference, HFileLink, files starting with "_" and non-valid
hfiles.
{code}
The last part of the above comment should be revised to take new parameter into
account.
Do you know how much percentage hfile validation took for your workload ?
Thanks
> Add configuration to skip validating HFile format when bulk loading millions
> of HFiles
> --------------------------------------------------------------------------------------
>
> Key: HBASE-13985
> URL: https://issues.apache.org/jira/browse/HBASE-13985
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.98.13
> Reporter: Victor Xu
> Assignee: Victor Xu
> Priority: Minor
> Labels: regionserver
> Fix For: 0.98.14
>
> Attachments: HBASE-13985.patch
>
>
> When bulk loading millions of HFile into one HTable, checking HFile format is
> the most time-consuming phase. Maybe we could use a parallel mechanism to
> increase the speed, but when it comes to millions of HFiles, it may still
> cost dozens of minutes. So I think it's necessary to add an option for
> advanced user to bulkload without checking HFile format at all.
> Of course, the default value of this option should be true.
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