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https://issues.apache.org/jira/browse/HBASE-19582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16300451#comment-16300451
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Chia-Ping Tsai commented on HBASE-19582:
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We had some related discussion in HBASE-18638.
> Tags on append doesn't behave like expected
> -------------------------------------------
>
> Key: HBASE-19582
> URL: https://issues.apache.org/jira/browse/HBASE-19582
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 2.0.0-alpha-4
> Reporter: Jean-Marc Spaggiari
>
> When appending a tag an HBase cell, they seems to not really be append be
> live their own life. In the example below, I put a cell, append the TTL, and
> we can see between the 2 scans that only the TTL append cell expires. I was
> expecting those 2 cells to become one and expire together. This can be easily
> figured by looking at the returned timestamp from the scan.
> {code}
> hbase(main):082:0> put 't1', 'r1', 'f1:c1', 'value'
> 0 row(s) in 0.1350 seconds
> hbase(main):083:0> append 't1', 'r1', 'f1:c1', '', { TTL => 5000 }
> 0 row(s) in 0.0080 seconds
> hbase(main):084:0> scan 't1'
> ROW COLUMN+CELL
>
>
> r1 column=f1:c1,
> timestamp=1513879615014, value=value
>
> 1 row(s) in 0.0730 seconds
> hbase(main):085:0> scan 't1'
> ROW COLUMN+CELL
>
>
> r1 column=f1:c1,
> timestamp=1513879599375, value=value
>
> 1 row(s) in 0.0500 seconds
> {code}
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