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https://issues.apache.org/jira/browse/HBASE-9534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13771078#comment-13771078
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Hadoop QA commented on HBASE-9534:
----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12603881/hbase-9534-0.94-v2.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/7294//console
This message is automatically generated.
> Short-Circuit Coprocessor HTable access when on the same server
> ---------------------------------------------------------------
>
> Key: HBASE-9534
> URL: https://issues.apache.org/jira/browse/HBASE-9534
> Project: HBase
> Issue Type: Bug
> Reporter: Jesse Yates
> Assignee: Jesse Yates
> Labels: coprocessors, performance, regionserver
> Fix For: 0.98.0, 0.94.12, 0.96.1
>
> Attachments: 9534-0.94.txt, 9534-trunk.txt, hbase-9534-0.94-v0.patch,
> hbase-9534-0.94-v1.patch, hbase-9534-0.94-v2.patch,
> hbase-9534-trunk-v0.patch, hbase-9534-trunk-v1.patch,
> hbase-9534-trunk-v2.patch
>
>
> Coprocessors currently create a full HTable when they want to write. However,
> we know that coprocessors must run from within an HBase server (either master
> or RS). For the master, its rare that we are going to be doing performance
> sensitive operations, but RS calls could be very time-intensive.
> Therefore, we should be able to tell when a call from a CP attempts to talk
> to the RS on which it lives and just short-circuit to calling that RS, rather
> than going the long way around (which does the full marshalling/unmarshalling
> of data, as well as going over the loopback interface).
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