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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5021) Enforce upper bound on timestamp
Date Wed, 21 Dec 2011 12:21:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174038#comment-13174038
] 

Hudson commented on HBASE-5021:
-------------------------------

Integrated in HBase-TRUNK-security #39 (See [https://builds.apache.org/job/HBase-TRUNK-security/39/])
    HBASE-5021 Enforce upper bound on timestamp
[jira] [HBase-5021] Enforce upper bound on timestamp

Summary:
We have been getting hit with performance problems on the ODS
side due to invalid timestamps being inserted by the timestamp.  ODS is
working on adding proper checks to app server, but production
performance could be severely impacted with significant recovery time if
something slips past.  Therefore, we should also allow the option to
check the upper bound in HBase.

This is the first draft.  Probably should allow per-CF customization.

Test Plan:  - mvn test -Dtest=TestHRegion#testPutWithTsTooNew

Reviewers: Kannan, Liyin, JIRA

CC: stack, nspiegelberg, tedyu, Kannan, mbautin

Differential Revision: 849

stack : 
Files : 
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java

                
> 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: 5021-addendum.txt, 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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