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https://issues.apache.org/jira/browse/HDFS-9868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871465#comment-15871465
 ] 

Hadoop QA commented on HDFS-9868:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
15s{color} | {color:blue} Docker mode activated. {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 3 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
17s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m 
46s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 13m 
32s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
 3s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  2m 
15s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
31s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
13s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 10m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 10m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  2m  
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
55s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 
49s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
31s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  8m 11s{color} 
| {color:red} hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m  
2s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m 
59s{color} | {color:green} hadoop-distcp in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
33s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 80m 33s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.fs.viewfs.TestViewFsTrash |
|   | hadoop.security.TestKDiag |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HDFS-9868 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12853227/HDFS-9868.07.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux d36a3e9e8bd6 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 
15:44:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 02c5494 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HDFS-Build/18395/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/18395/testReport/ |
| modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs-client hadoop-tools/hadoop-distcp U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/18395/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Add ability for DistCp to run between 2 clusters
> ------------------------------------------------
>
>                 Key: HDFS-9868
>                 URL: https://issues.apache.org/jira/browse/HDFS-9868
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: distcp
>    Affects Versions: 2.7.1
>            Reporter: NING DING
>            Assignee: NING DING
>         Attachments: HDFS-9868.05.patch, HDFS-9868.06.patch, 
> HDFS-9868.07.patch, HDFS-9868.1.patch, HDFS-9868.2.patch, HDFS-9868.3.patch, 
> HDFS-9868.4.patch
>
>
> Normally the HDFS cluster is HA enabled. It could take a long time when 
> coping huge data by distp. If the source cluster changes active namenode, the 
> distp will run failed. This patch supports the DistCp can read source cluster 
> files in HA access mode. A source cluster configuration file needs to be 
> specified (via the -sourceClusterConf option).
>   The following is an example of the contents of a source cluster 
> configuration
>   file:
> {code:xml}
>     <configuration>
>       <property>
>               <name>fs.defaultFS</name>
>               <value>hdfs://mycluster</value>
>         </property>
>         <property>
>               <name>dfs.nameservices</name>
>               <value>mycluster</value>
>         </property>
>         <property>
>               <name>dfs.ha.namenodes.mycluster</name>
>               <value>nn1,nn2</value>
>         </property>
>         <property>
>               <name>dfs.namenode.rpc-address.mycluster.nn1</name>
>               <value>host1:9000</value>
>         </property>
>         <property>
>               <name>dfs.namenode.rpc-address.mycluster.nn2</name>
>               <value>host2:9000</value>
>         </property>
>         <property>
>               <name>dfs.namenode.http-address.mycluster.nn1</name>
>               <value>host1:50070</value>
>         </property>
>         <property>
>               <name>dfs.namenode.http-address.mycluster.nn2</name>
>               <value>host2:50070</value>
>         </property>
>         <property>
>               <name>dfs.client.failover.proxy.provider.mycluster</name>
>               
> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
>         </property>
>       </configuration>
> {code}
>   The invocation of DistCp is as below:
> {code}
>     bash$ hadoop distcp -sourceClusterConf sourceCluster.xml /foo/bar 
> hdfs://nn2:8020/bar/foo
> {code}



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