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From "Nicolas Spiegelberg (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5021) Enforce upper bound on timestamp
Date Wed, 21 Dec 2011 00:05:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nicolas Spiegelberg updated HBASE-5021:
---------------------------------------

    Attachment: HBASE-5021-trunk.patch
    
> Enforce upper bound on timestamp
> --------------------------------
>
>                 Key: HBASE-5021
>                 URL: https://issues.apache.org/jira/browse/HBASE-5021
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Critical
>             Fix For: 0.94.0
>
>         Attachments: D849.1.patch, D849.2.patch, D849.3.patch, HBASE-5021-trunk.patch
>
>
> We have been getting hit with performance problems on our time-series database due to
invalid timestamps being inserted by the timestamp.  We are working on adding proper checks
to app server, but production performance could be severely impacted with significant recovery
time if something slips past.  Since timestamps are considered a fundamental part of the HBase
schema & multiple optimizations use timestamp information, we should allow the option
to sanity check the upper bound on the server-side in HBase.

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