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https://issues.apache.org/jira/browse/HBASE-9888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16554511#comment-16554511
 ] 

Hadoop QA commented on HBASE-9888:
----------------------------------

| (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 
18s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
0s{color} | {color:blue} Findbugs executables are not available. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {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 2 new or modified test 
files. {color} |
|| || || || {color:brown} branch-1 Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
25s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
41s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
4s{color} | {color:green} branch-1 passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
14s{color} | {color:green} branch-1 passed with JDK v1.7.0_181 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
10s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  2m 
37s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
58s{color} | {color:green} branch-1 passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
16s{color} | {color:green} branch-1 passed with JDK v1.7.0_181 {color} |
|| || || || {color:brown} Patch Compile Tests {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 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
4s{color} | {color:green} the patch passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  
4s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
16s{color} | {color:green} the patch passed with JDK v1.7.0_181 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
16s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
24s{color} | {color:red} hbase-common: The patch generated 1 new + 9 unchanged 
- 1 fixed = 10 total (was 10) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
29s{color} | {color:red} hbase-client: The patch generated 3 new + 18 unchanged 
- 0 fixed = 21 total (was 18) {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} shadedjars {color} | {color:green}  2m 
37s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}  
1m 34s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.7.4. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
56s{color} | {color:green} the patch passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
15s{color} | {color:green} the patch passed with JDK v1.7.0_181 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m  
9s{color} | {color:green} hbase-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
21s{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 99m 36s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
55s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}130m  8s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.replication.TestMultiSlaveReplication |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:61288f8 |
| JIRA Issue | HBASE-9888 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12932896/HBASE-9888.branch-1.001.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  shadedjars  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux b0a32d8ee8ec 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14 
08:52:28 UTC 2018 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 | branch-1 / 0b7081e |
| maven | version: Apache Maven 3.0.5 |
| Default Java | 1.7.0_181 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-openjdk-amd64:1.8.0_172 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_181 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13761/artifact/patchprocess/diff-checkstyle-hbase-common.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13761/artifact/patchprocess/diff-checkstyle-hbase-client.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13761/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13761/testReport/ |
| Max. process+thread count | 4002 (vs. ulimit of 10000) |
| modules | C: hbase-common hbase-client hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13761/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> HBase replicates edits written before the replication peer is created
> ---------------------------------------------------------------------
>
>                 Key: HBASE-9888
>                 URL: https://issues.apache.org/jira/browse/HBASE-9888
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.5.0
>            Reporter: Dave Latham
>            Priority: Major
>         Attachments: HBASE-9888.branch-1.001.patch
>
>
> When creating a new replication peer the ReplicationSourceManager enqueues 
> the currently open HLog to the ReplicationSource to ship to the destination 
> cluster.  The ReplicationSource starts at the beginning of the HLog and ships 
> over any pre-existing writes.
> A workaround is to roll all the HLogs before enabling replication.
> A little background for how it affected us - we were migrating one cluster in 
> a master-master pair.  I.e. transitioning from A <\-> B to B <-> C.  After 
> shutting down writes from A -> B we enabled writes from C -> B.  However, 
> this replicated some earlier writes that were in C's HLogs that had 
> originated in A.  Since we were running a version of HBase before HBASE-7709 
> those writes then got caught in a infinite replication cycle and bringing 
> down region servers OOM because of HBASE-9865.
> However, in general, if one wants to manage what data gets replicated, one 
> wouldn't expect that potentially very old writes would be included when 
> setting up a new replication link.



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