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https://issues.apache.org/jira/browse/HBASE-13316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14384305#comment-14384305
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Hadoop QA commented on HBASE-13316:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12707788/PlannedFailover-v3.patch
against master branch at commit 5d2c33158c47fc791d4973c5013d7ae50795d3bc.
ATTACHMENT ID: 12707788
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 7 new
or modified tests.
{color:green}+1 hadoop versions{color}. The patch compiles with all
supported hadoop versions (2.4.1 2.5.2 2.6.0)
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 checkstyle{color}. The applied patch does not increase the
total number of checkstyle errors
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 lineLengths{color}. The patch does not introduce lines
longer than 100
{color:green}+1 site{color}. The mvn site goal succeeds with this patch.
{color:red}-1 core tests{color}. The patch failed these unit tests:
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/13461//testReport/
Release Findbugs (version 2.0.3) warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/13461//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/13461//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/13461//console
This message is automatically generated.
> Reduce the downtime on planned moves of regions
> -----------------------------------------------
>
> Key: HBASE-13316
> URL: https://issues.apache.org/jira/browse/HBASE-13316
> Project: HBase
> Issue Type: Improvement
> Components: Balancer
> Affects Versions: 2.0.0, 1.0.1, 1.1.1
> Reporter: Sameet Agarwal
> Assignee: Sameet Agarwal
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: PlannedFailover-v1.patch, PlannedFailover-v2.patch,
> PlannedFailover-v3.patch, PlannedFailover.patch
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> The current behavior of a region move shuts down a region and then starts is
> up in another regionserver. This causes increased latency and possibly
> timeouts till the new region's cache is fully warmed up. We can make a region
> move less disruptive by warming the cache in the destination region server
> before shutting dow the old region.
>
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