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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11766) Backdoor CoprocessorHConnection is no longer being used for local writes
Date Tue, 26 Aug 2014 04:44:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14110266#comment-14110266
] 

Hudson commented on HBASE-11766:
--------------------------------

FAILURE: Integrated in HBase-0.98-on-Hadoop-1.1 #444 (See [https://builds.apache.org/job/HBase-0.98-on-Hadoop-1.1/444/])
HBASE-11766 Backdoor CoprocessorHConnection is no longer being used for local writes (apurtell:
rev 7b04466dc8acc910df67b1cf9c3e74004ac51a05)
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/client/CoprocessorHConnection.java


> Backdoor CoprocessorHConnection is no longer being used for local writes
> ------------------------------------------------------------------------
>
>                 Key: HBASE-11766
>                 URL: https://issues.apache.org/jira/browse/HBASE-11766
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.4
>            Reporter: James Taylor
>            Assignee: Andrew Purtell
>              Labels: Phoenix
>             Fix For: 0.99.0, 2.0.0, 0.98.6
>
>         Attachments: HBASE-11766-0.98.patch, HBASE-11766.patch, HBASE-11766.patch
>
>
> There's a backdoor CoprocessorHConnection used to ensure that a batched mutation does
not go over the wire and back, but executes immediately locally. This is leveraged by Phoenix
during secondary index maintenance (for an ~20% perf improvement). It looks to me like it's
no longer used, as the following function is never invoked:
>   public org.apache.hadoop.hbase.protobuf.generated.ClientProtos.ClientService.BlockingInterface
>       getClient(ServerName serverName) throws IOException {
> It'd be good if feasible to add an HBase unit test to prevent further regressions. For
more info, see PHOENIX-1166.



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