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https://issues.apache.org/jira/browse/HBASE-14949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15152149#comment-15152149
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Hadoop QA commented on HBASE-14949:
-----------------------------------

| (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 0s 
{color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 5m 
34s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 4s 
{color} | {color:green} master passed with JDK v1.8.0_72 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 54s 
{color} | {color:green} master passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 5m 
58s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
29s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 
49s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 0s 
{color} | {color:green} master passed with JDK v1.8.0_72 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 54s 
{color} | {color:green} master passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 
11s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 6s 
{color} | {color:green} the patch passed with JDK v1.8.0_72 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 6s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 54s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 54s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 5m 
28s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
26s {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} 
34m 8s {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} findbugs {color} | {color:green} 3m 1s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 54s 
{color} | {color:green} the patch passed with JDK v1.8.0_72 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 51s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 161m 8s {color} 
| {color:red} hbase-server in the patch failed with JDK v1.8.0_72. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 148m 34s 
{color} | {color:red} hbase-server in the patch failed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
30s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 443m 58s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| JDK v1.8.0_72 Failed junit tests | 
hadoop.hbase.replication.multiwal.TestReplicationEndpointWithMultipleWAL |
| JDK v1.8.0_72 Timed out junit tests | 
org.apache.hadoop.hbase.snapshot.TestMobExportSnapshot |
| JDK v1.7.0_95 Failed junit tests | 
hadoop.hbase.replication.TestPerTableCFReplication |
| JDK v1.7.0_95 Timed out junit tests | 
org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.9.1 Server=1.9.1 Image:yetus/hbase:date2016-02-18 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12788381/HBASE-14949-v5.patch |
| JIRA Issue | HBASE-14949 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux 406751db5e15 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 / 4b1acea |
| findbugs | v3.0.0 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/582/artifact/patchprocess/patch-unit-hbase-server-jdk1.8.0_72.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/582/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_95.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-HBASE-Build/582/artifact/patchprocess/patch-unit-hbase-server-jdk1.8.0_72.txt
 
https://builds.apache.org/job/PreCommit-HBASE-Build/582/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_95.txt
 |
| JDK v1.7.0_95  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/582/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Max memory used | 405MB |
| Powered by | Apache Yetus 0.1.0   http://yetus.apache.org |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/582/console |


This message was automatically generated.



> Resolve name conflict when splitting if there are duplicated WAL entries
> ------------------------------------------------------------------------
>
>                 Key: HBASE-14949
>                 URL: https://issues.apache.org/jira/browse/HBASE-14949
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Heng Chen
>            Assignee: Duo Zhang
>         Attachments: HBASE-14949-v3.patch, HBASE-14949-v4.patch, 
> HBASE-14949-v5.patch, HBASE-14949.patch, HBASE-14949_v1.patch, 
> HBASE-14949_v2.patch
>
>
> The AsyncFSHLog introduced in HBASE-14790 may write same WAL entries to 
> different WAL files. WAL entry itself is idempotent so replay is not a 
> problem but the intermediate file name and final name when splitting is 
> constructed using the lowest or highest sequence id of the WAL entries 
> written, so it is possible that different WAL files will have same 
> intermediate or final file name when splitting. In the currentm 
> implementation, this will cause split fail or data loss. We need to solve 
> this.



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