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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-19154) Scan consistency guarantee
Date Thu, 02 Nov 2017 13:38:00 GMT
Duo Zhang created HBASE-19154:
---------------------------------

             Summary: Scan consistency guarantee
                 Key: HBASE-19154
                 URL: https://issues.apache.org/jira/browse/HBASE-19154
             Project: HBase
          Issue Type: Umbrella
          Components: Compaction, scan
    Affects Versions: 3.0.0
            Reporter: Duo Zhang
            Priority: Major


For now, although we already pass mvcc back to client, and client will send this mvcc to RS
when reopening a scanner, we still can not make sure that the region/row level consistency
is safe as compaction happens after region move but before the scanner reopen may delete some
cells which mvcc are before the mvcc given by client.

This issue aims to try our best to guarantee region level consistency, and if not, we need
to tell users we can not make it.



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