Pavel Salimov created HBASE-18098:
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Summary: Region data ended up in a file of an another region
Key: HBASE-18098
URL: https://issues.apache.org/jira/browse/HBASE-18098
Project: HBase
Issue Type: Bug
Affects Versions: 1.2.0
Reporter: Pavel Salimov
Somehow it happened that a region, say AB, was split onto A and B, but some
portion of B's data were missing in B's H-files, still presenting in A's files.
I am not completely sure, was it a result of just a failure during split, or of
applying hbck repair after that.
Anyway, data of some rows belonging to B were missing accessing normally. I was
able to access them making a scan type query regarding these rows to region A
(despite the rows are after its end). Hbck repairs, splitting A onto A0, A1 and
(full) compaction did not change the situation: the data were still missing in
B migrated to A1.
I am reporting the issue in hope to get an advice on how to detect such an
inconsistency as well as hoping to clarify what leaded to such a state (and
fixed if it is a bug).
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