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https://issues.apache.org/jira/browse/HBASE-9888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17022494#comment-17022494
 ] 

HBase QA commented on HBASE-9888:
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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}  4m 
22s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
1s{color} | {color:green} No case conflicting files found. {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 1 new or modified test 
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  2m 
20s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
24s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
12s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
25s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  5m 
 7s{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 
48s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  4m 
25s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  4m 
53s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
16s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  3m 
33s{color} | {color:red} root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  1m  
1s{color} | {color:red} hbase-server in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  1m  1s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
21s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git 
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply 
{color} |
| {color:red}-1{color} | {color:red} shadedjars {color} | {color:red}  4m 
27s{color} | {color:red} patch has 44 errors when building our shaded 
downstream artifacts. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  2m 
23s{color} | {color:red} The patch causes 44 errors with Hadoop v2.8.5. {color} 
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| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  5m  
5s{color} | {color:red} The patch causes 44 errors with Hadoop v2.9.2. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  7m 
55s{color} | {color:red} The patch causes 44 errors with Hadoop v3.1.2. {color} 
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
44s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
58s{color} | {color:red} hbase-server in the patch failed. {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
38s{color} | {color:green} hbase-replication in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 56s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
15s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 50m  9s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.5 Server=19.03.5 base: 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/Dockerfile
 |
| JIRA Issue | HBASE-9888 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12959643/HBASE-9888.003.patch |
| Optional Tests | dupname asflicense javac javadoc unit spotbugs findbugs 
shadedjars hadoopcheck hbaseanti checkstyle compile |
| uname | Linux 7a5f1b971134 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 
08:06:28 UTC 2019 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/hbase-personality.sh |
| git revision | master / 0da08258a0 |
| Default Java | 1.8.0_181 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-mvninstall-root.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-compile-hbase-server.txt
 |
| javac | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-compile-hbase-server.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/whitespace-eol.txt
 |
| shadedjars | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-shadedjars.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-javac-2.8.5.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-javac-2.9.2.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-javac-3.1.2.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-findbugs-hbase-server.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/testReport/ |
| Max. process+thread count | 198 (vs. ulimit of 10000) |
| modules | C: hbase-replication hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1101/console |
| versions | git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11 |
| Powered by | Apache Yetus 0.11.1 https://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
>            Assignee: Pankaj Kumar
>            Priority: Major
>             Fix For: 3.0.0
>
>         Attachments: HBASE-9888.002.patch, HBASE-9888.003.patch, 
> HBASE-9888.branch-1.001.patch, HBASE-9888.branch-1.002.patch, 
> HBASE-9888.branch-2.002.patch, HBASE-9888.branch-2.patch, 
> HBASE-9888.branch-2.patch, HBASE-9888.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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