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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15097) When the scan operation covered two regions,sometimes the final results have duplicated rows.
Date Mon, 18 Jan 2016 12:43:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15105234#comment-15105234
] 

Hadoop QA commented on HBASE-15097:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {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:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s {color} | {color:red}
The patch doesn't appear to include any new or modified tests. Please justify why no new tests
are needed for this patch. Also please list what manual steps were performed to verify this
patch. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 43s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 42s {color} |
{color:green} master passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 40s {color} |
{color:green} master passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 5m 3s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 18s {color}
| {color:green} master passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 9s {color} | {color:red}
hbase-server in master has 82 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 34s {color} |
{color:green} master passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 33s {color} |
{color:green} master passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 47s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 48s {color} |
{color:green} the patch passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 48s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 36s {color} |
{color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 36s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 4m 43s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 15s {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:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 1m 34s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.4.0. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 3m 3s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.4.1. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 4m 38s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.5.0. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 6m 12s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.5.1. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 7m 42s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.5.2. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 9m 15s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.6.1. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 10m 50s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.6.2. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 12m 36s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.6.3. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 14m 20s {color} | {color:red}
Patch causes 11 errors with Hadoop v2.7.1. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 20s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 30s {color} |
{color:green} the patch passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 34s {color} |
{color:green} the patch passed with JDK v1.7.0_79 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 84m 1s {color} | {color:red}
hbase-server in the patch failed with JDK v1.8.0. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 82m 15s {color} | {color:red}
hbase-server in the patch failed with JDK v1.7.0_79. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 14s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 204m 25s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| JDK v1.8.0 Failed junit tests | hadoop.hbase.util.TestHBaseFsckOneRS |
| JDK v1.7.0_79 Failed junit tests | hadoop.hbase.util.TestHBaseFsckOneRS |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12782834/HBASE-15097-v002.patch
|
| JIRA Issue | HBASE-15097 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle
 compile  |
| uname | Linux asf902.gq1.ygridcore.net 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 / 47fc696 |
| findbugs | v3.0.0 |
| findbugs | https://builds.apache.org/job/PreCommit-HBASE-Build/176/artifact/patchprocess/branch-findbugs-hbase-server-warnings.html
|
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/176/artifact/patchprocess/patch-unit-hbase-server-jdk1.8.0.txt
|
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/176/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_79.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-HBASE-Build/176/artifact/patchprocess/patch-unit-hbase-server-jdk1.8.0.txt
https://builds.apache.org/job/PreCommit-HBASE-Build/176/artifact/patchprocess/patch-unit-hbase-server-jdk1.7.0_79.txt
|
| JDK v1.7.0_79  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/176/testReport/
|
| modules | C: hbase-server U: hbase-server |
| Max memory used | 191MB |
| Powered by | Apache Yetus 0.1.0   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/176/console |


This message was automatically generated.



> When the scan operation covered two regions,sometimes the final results have duplicated
rows.
> ---------------------------------------------------------------------------------------------
>
>                 Key: HBASE-15097
>                 URL: https://issues.apache.org/jira/browse/HBASE-15097
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 1.1.2
>         Environment: centos 6.5
> hbase 1.1.2 
>            Reporter: chenrongwei
>            Assignee: chenrongwei
>         Attachments: HBASE-15097-v001.patch, HBASE-15097-v002.patch, output.log, rowkey.txt,
snapshot2016-01-13 pm 8.42.37.png
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> When the scan operationā€˜s start key and end key covered two regions,the first region
returned the rows which were beyond of its' end key.So,this finally leads to duplicated rows
in the results.
> To avoid this problem,we should add a judgment before setting the variable "stopRow"
in the class of HRegion,like follow:
>             if (Bytes.equals(scan.getStopRow(), HConstants.EMPTY_END_ROW) &&
!scan.isGetScan()) {
>                 this.stopRow = null;
>             } else {
>                 if (Bytes.compareTo(scan.getStopRow(), this.getRegionInfo().getEndKey())
>= 0) {
>                     this.stopRow = this.getRegionInfo().getEndKey();
>                 } else {
>                     this.stopRow = scan.getStopRow();
>                 }
>             }



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