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https://issues.apache.org/jira/browse/HBASE-8760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13687330#comment-13687330
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Matteo Bertozzi commented on HBASE-8760:
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I'm only in favor of option 2.
Option one is just a workaround that you should always keep in mind when you
change something.
If to load the table you must have that file... it means that the file should
be in the snapshot.
so, why is not there? can we add it as FixReferences() step during the snapshot?
should we mark the snapshot as corrupted in the master verifier if the parent
is missing?
HBASE-7987 will probably clean up a bit the load snapshot situation, and
Reference Files tracking...
but it doesn't solve this problem where the file is not included in the
snapshot. NOTE that if you implement a strict snapshot verifier this snapshot
should be considered corrupted.
> possible loss of data in snapshot taken after region split
> ----------------------------------------------------------
>
> Key: HBASE-8760
> URL: https://issues.apache.org/jira/browse/HBASE-8760
> Project: HBase
> Issue Type: Bug
> Components: snapshots
> Affects Versions: 0.94.8
> Reporter: Jerry He
> Assignee: Jerry He
> Fix For: 0.94.8
>
> Attachments: HBase-8760-0.94.8.patch, HBase-8760-0.94.8-v1.patch
>
>
> Right after a region split but before the daughter regions are compacted, we
> have two daughter regions containing Reference files to the parent hfiles.
> If we take snapshot right at the moment, the snapshot will succeed, but it
> will only contain the daughter Reference files. Since there is no hold on the
> parent hfiles, they will be deleted by the HFile Cleaner after they are no
> longer needed by the daughter regions soon after.
> A minimum we need to do is the keep these parent hfiles from being deleted.
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