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https://issues.apache.org/jira/browse/HBASE-15641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248251#comment-15248251
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Hadoop QA commented on HBASE-15641:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} rubocop {color} | {color:blue} 0m 2s 
{color} | {color:blue} rubocop was not available. {color} |
| {color:blue}0{color} | {color:blue} ruby-lint {color} | {color:blue} 0m 2s 
{color} | {color:blue} Ruby-lint was not available. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s 
{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 
0s {color} | {color:green} The patch appears to include 1 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 
3s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
17s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 17s 
{color} | {color:green} master passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 11s 
{color} | {color:green} master passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
14s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
14s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
25m 47s {color} | {color:green} Patch does not cause any errors with Hadoop 
2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.1 2.6.2 2.6.3 2.7.1. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 17s 
{color} | {color:green} the patch passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 9s 
{color} | {color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 6m 37s 
{color} | {color:green} hbase-shell in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
8s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 37m 26s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12799172/hbase-15641-v1.patch |
| JIRA Issue | HBASE-15641 |
| Optional Tests |  asflicense  javac  javadoc  unit  rubocop  ruby_lint  |
| uname | Linux asf901.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP 
PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | master / bd3b975 |
| Default Java | 1.7.0_79 |
| Multi-JDK versions |  /home/jenkins/tools/java/jdk1.8.0:1.8.0 
/usr/local/jenkins/java/jdk1.7.0_79:1.7.0_79 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1486/testReport/ |
| modules | C: hbase-shell U: hbase-shell |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1486/console |
| Powered by | Apache Yetus 0.2.1   http://yetus.apache.org |


This message was automatically generated.



> Shell "alter" should do a single modifyTable operation
> ------------------------------------------------------
>
>                 Key: HBASE-15641
>                 URL: https://issues.apache.org/jira/browse/HBASE-15641
>             Project: HBase
>          Issue Type: Improvement
>          Components: shell
>            Reporter: Gary Helmling
>            Assignee: Matt Warhaftig
>         Attachments: hbase-15641-v1.patch
>
>
> When performing an "alter" on multiple column families in a table, then shell 
> will perform a separate {{Admin.modifyColumn()}} call for each column family 
> being modified, with all of the table regions being bulk-reopened each time.  
> It would be much better to simply apply all the changes to the table 
> descriptor, then do a single call to {{Admin.modifyTable()}}.



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