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https://issues.apache.org/jira/browse/HBASE-17131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16103977#comment-16103977
 ] 

Hadoop QA commented on HBASE-17131:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
30s{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}  6m 
56s{color} | {color:green} branch-1.3 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
31s{color} | {color:green} branch-1.3 passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
33s{color} | {color:green} branch-1.3 passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 6s{color} | {color:green} branch-1.3 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
21s{color} | {color:green} branch-1.3 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
51s{color} | {color:green} branch-1.3 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
33s{color} | {color:green} branch-1.3 passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
32s{color} | {color:green} branch-1.3 passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
31s{color} | {color:green} the patch passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
31s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
32s{color} | {color:green} the patch passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
17s{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} hadoopcheck {color} | {color:green} 
16m 40s{color} | {color:green} The 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}  2m 
15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
29s{color} | {color:green} the patch passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
35s{color} | {color:green} the patch passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}111m 
11s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
25s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}148m  0s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.03.0-ce Server=17.03.0-ce Image:yetus/hbase:b3a2a00 |
| JIRA Issue | HBASE-17131 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12879228/HBASE-17131.branch-1.3.v0.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux 32ffec47cf75 3.13.0-119-generic #166-Ubuntu SMP Wed May 3 
12:18:55 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/hbase.sh |
| git revision | branch-1.3 / 22233a2 |
| Default Java | 1.7.0_131 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_131 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_131 |
| findbugs | v3.0.0 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7816/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7816/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> Avoid livelock caused by HRegion#processRowsWithLocks
> -----------------------------------------------------
>
>                 Key: HBASE-17131
>                 URL: https://issues.apache.org/jira/browse/HBASE-17131
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 2.0.0, 1.4.0, 1.3.1, 1.2.6
>            Reporter: Chia-Ping Tsai
>            Assignee: Chia-Ping Tsai
>             Fix For: 2.0.0, 1.4.0, 1.3.2, 1.2.7
>
>         Attachments: HBASE-17131.branch-1.3.v0.patch, 
> HBASE-17131.branch-1.v0.patch, HBASE-17131.v0.patch
>
>
> {code:title=HRegion.java|borderStyle=solid}
> try {
>       // STEP 2. Acquire the row lock(s)
>       acquiredRowLocks = new ArrayList<RowLock>(rowsToLock.size());
>       for (byte[] row : rowsToLock) {
>         // Attempt to lock all involved rows, throw if any lock times out
>         // use a writer lock for mixed reads and writes
>         acquiredRowLocks.add(getRowLockInternal(row, false));
>       }
>       // STEP 3. Region lock
>       lock(this.updatesLock.readLock(), acquiredRowLocks.size() == 0 ? 1 : 
> acquiredRowLocks.size());
>       locked = true;
>       boolean success = false;
>       long now = EnvironmentEdgeManager.currentTime();
>       try {
> {code}
> We should lock all involved rows in the second try-finally. Otherwise, we 
> won’t release the previous locks if any subsequent lock times out.



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