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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-2249) SYSTEM.STATS not update after region merge occurs.
Date Sat, 12 Dec 2015 22:30:46 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-2249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15054684#comment-15054684
] 

Hudson commented on PHOENIX-2249:
---------------------------------

FAILURE: Integrated in Phoenix-master #1017 (See [https://builds.apache.org/job/Phoenix-master/1017/])
PHOENIX-2249 SYSTEM.STATS not update after region merge occurs.(Ankit (rajeshbabu: rev 4b3a85f3fbed1672c4aa2118302af800fba61cca)
* phoenix-core/src/main/java/org/apache/phoenix/coprocessor/UngroupedAggregateRegionObserver.java
* phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsScanner.java
* phoenix-core/src/main/java/org/apache/phoenix/schema/stats/StatisticsCollector.java


> SYSTEM.STATS not update after region merge occurs.
> --------------------------------------------------
>
>                 Key: PHOENIX-2249
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2249
>             Project: Phoenix
>          Issue Type: Bug
>         Environment: Ubuntu server 14.04
> Hadoop 2.6.0
> HBase 1.0.0
> Phoenix 4.4.0-HBase-1.0.0
>            Reporter: Kuan-Po Tseng
>            Assignee: Ankit Singhal
>             Fix For: 4.7.0
>
>         Attachments: PHOENIX-2249.patch, PHOENIX-2249_V1.patch
>
>
> When region merge occurs, SYSTEM.STATS does not update, it will leave stale information
behind. And then if region splits on the merged region, this may cause 
> "org.apache.phoenix.schema.StaleRegionBoundaryCacheException: ERROR 1108 (XCL08): Cache
of region boundaries are out of date" 
> after creating parallel scans since the stale information in SYSTEM.STATS will let guide
post list not sorted in ascending order and this will cause scans over regions.



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