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https://issues.apache.org/jira/browse/HBASE-10854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13958567#comment-13958567
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ramkrishna.s.vasudevan commented on HBASE-10854:
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I already saw the patch internally. this is what we had in mind. +1. Will
update my patch for HBASE-10899 based on this.
NEXT_COL is not called here because we don't know how many versions may be
there. ( and that may inturn lead to reseek()).
> Multiple Row/VisibilityLabels visible while in the memstore
> -----------------------------------------------------------
>
> Key: HBASE-10854
> URL: https://issues.apache.org/jira/browse/HBASE-10854
> Project: HBase
> Issue Type: Bug
> Components: security
> Affects Versions: 0.98.0
> Reporter: Matteo Bertozzi
> Assignee: Anoop Sam John
> Fix For: 0.99.0, 0.98.2
>
> Attachments: HBASE-10854.patch
>
>
> If we update the row multiple times with different visibility labels
> we are able to get the "old version" of the row until is flushed
> {code}
> $ sudo -u hbase hbase shell
> hbase> add_labels 'A'
> hbase> add_labels 'B'
> hbase> create 'tb', 'f1'
> hbase> put 'tb', 'row', 'f1:q', 'v1', {VISIBILITY=>'A'}
> hbase> put 'tb', 'row', 'f1:q', 'v1all'
> hbase> put 'tb', 'row', 'f1:q', 'v1aOrB', {VISIBILITY=>'A|B'}
> hbase> put 'tb', 'row', 'f1:q', 'v1aAndB', {VISIBILITY=>'A&B'}
> hbase> scan 'tb'
> row column=f1:q, timestamp=1395948168154, value=v1aAndB
> 1 row
> $ sudo -u testuser hbase shell
> hbase> scan 'tb'
> row column=f1:q, timestamp=1395948168102, value=v1all
> 1 row
> {code}
> When we flush the memstore we get a single row (the last one inserted)
> so the testuser get 0 rows now.
> {code}
> $ sudo -u hbase hbase shell
> hbase> flush 'tb'
> hbase> scan 'tb'
> row column=f1:q, timestamp=1395948168154, value=v1aAndB
> 1 row
> $ sudo -u testuser hbase shell
> hbase> scan 'tb'
> 0 row
> {code}
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