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https://issues.apache.org/jira/browse/HBASE-15378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15187171#comment-15187171
 ] 

Hadoop QA commented on HBASE-15378:
-----------------------------------

| (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 14s 
{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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 20s 
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 
49s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 17s 
{color} | {color:green} master passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 19s 
{color} | {color:green} master passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 7m 
51s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 1m 
11s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 7m 
32s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 56s 
{color} | {color:green} master passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 10s 
{color} | {color:green} master passed with JDK v1.7.0_95 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 14s 
{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 
44s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 9s 
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 9s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 9s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 9s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 2m 8s 
{color} | {color:red} hbase-client: patch generated 6 new + 624 unchanged - 3 
fixed = 630 total (was 627) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m 48s 
{color} | {color:red} hbase-client: patch generated 6 new + 624 unchanged - 3 
fixed = 630 total (was 627) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m 51s 
{color} | {color:red} hbase-server: patch generated 6 new + 624 unchanged - 3 
fixed = 630 total (was 627) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m 49s 
{color} | {color:red} hbase-server: patch generated 6 new + 624 unchanged - 3 
fixed = 630 total (was 627) {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 1m 
4s {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} 
30m 17s {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} 7m 
29s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 47s 
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 58s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 12s 
{color} | {color:green} hbase-client in the patch passed with JDK v1.8.0_74. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 9s 
{color} | {color:green} hbase-client in the patch passed with JDK v1.8.0_74. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 118m 32s 
{color} | {color:green} hbase-server in the patch passed with JDK v1.8.0_74. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 113m 34s 
{color} | {color:green} hbase-server in the patch passed with JDK v1.8.0_74. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 34s 
{color} | {color:green} hbase-client in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 33s 
{color} | {color:green} hbase-client in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 110m 43s 
{color} | {color:green} hbase-server in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 114m 48s 
{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} 1m 
11s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 552m 57s {color} 
| {color:black} {color} |
\\
\\
|| Reason || Tests ||
| JDK v1.7.0_95 Timed out junit tests | 
org.apache.hadoop.hbase.snapshot.TestMobFlushSnapshotFromClient |
|   | org.apache.hadoop.hbase.snapshot.TestMobFlushSnapshotFromClient |
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\\
|| Subsystem || Report/Notes ||
| Docker | Client=1.9.1 Server=1.9.1 Image:yetus/hbase:date2016-03-09 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12792176/HBASE-15378-v5.patch |
| JIRA Issue | HBASE-15378 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux d433caddae08 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 / 9e967e5 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_74 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/artifact/patchprocess/diff-checkstyle-hbase-client.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/artifact/patchprocess/diff-checkstyle-hbase-client.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/artifact/patchprocess/diff-checkstyle-hbase-server.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/artifact/patchprocess/diff-checkstyle-hbase-server.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_95.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-HBASE-Build/903/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_95.txt
 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/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/903/testReport/ |
| modules | C:  hbase-client   hbase-client   hbase-server   hbase-server  U: . 
|
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/903/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


This message was automatically generated.



> Scanner can not handle a heartbeat message with no results
> ----------------------------------------------------------
>
>                 Key: HBASE-15378
>                 URL: https://issues.apache.org/jira/browse/HBASE-15378
>             Project: HBase
>          Issue Type: Bug
>          Components: dataloss, Scanners
>    Affects Versions: 1.2.0, 1.1.3
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>            Priority: Critical
>             Fix For: 2.0.0, 1.3.0, 1.2.1, 1.1.4, 1.4.0
>
>         Attachments: HBASE-15378-v1.txt, HBASE-15378-v2.txt, 
> HBASE-15378-v3.txt, HBASE-15378-v4.patch, HBASE-15378-v5.patch, 
> HBASE-15378-v5.patch
>
>
> When a RS scanner get a TIME_LIMIT_REACHED_MID_ROW state, they will stop 
> scanning and send back what it has read to client and mark the message as a 
> heartbeat message. If there is no cell has been read, it will be an empty 
> response. 
> However, ClientScanner only handles the situation that the client gets an 
> empty heartbeat and its cache is not empty. If the cache is empty too, it 
> will be regarded as end-of-region and open a new scanner for next region.



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