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https://issues.apache.org/jira/browse/HBASE-17112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15672906#comment-15672906
 ] 

Hadoop QA commented on HBASE-17112:
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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} 11m 21s 
{color} | {color:blue} Docker mode activated. {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} 1m 
43s {color} | {color:green} branch-1.1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 35s 
{color} | {color:green} branch-1.1 passed with JDK v1.8.0_111 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 38s 
{color} | {color:green} branch-1.1 passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
25s {color} | {color:green} branch-1.1 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
18s {color} | {color:green} branch-1.1 passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 5s 
{color} | {color:red} hbase-server in branch-1.1 has 80 extant Findbugs 
warnings. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 27s 
{color} | {color:red} hbase-server in branch-1.1 failed with JDK v1.8.0_111. 
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 34s 
{color} | {color:green} branch-1.1 passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
45s {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 v1.8.0_111 {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} compile {color} | {color:green} 0m 38s 
{color} | {color:green} the patch passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 38s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
22s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
18s {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} 
13m 23s {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} hbaseprotoc {color} | {color:green} 0m 
16s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 
34s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 35s 
{color} | {color:red} hbase-server in the patch failed with JDK v1.8.0_111. 
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 40s 
{color} | {color:green} the patch passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 93m 59s 
{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
31s {color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 133m 21s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.11.2 Server=1.11.2 Image:yetus/hbase:8012383 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12839304/HBASE-17112-branch-1.1-v1.patch
 |
| JIRA Issue | HBASE-17112 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux 4bb7fdd07ab8 3.13.0-92-generic #139-Ubuntu SMP Tue Jun 28 
20:42:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/hbase.sh |
| git revision | branch-1.1 / a8628ee |
| Default Java | 1.7.0_80 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_111 
/usr/lib/jvm/java-7-oracle:1.7.0_80 |
| findbugs | v3.0.0 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HBASE-Build/4507/artifact/patchprocess/branch-findbugs-hbase-server-warnings.html
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HBASE-Build/4507/artifact/patchprocess/branch-javadoc-hbase-server-jdk1.8.0_111.txt
 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HBASE-Build/4507/artifact/patchprocess/patch-javadoc-hbase-server-jdk1.8.0_111.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/4507/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/4507/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> Prevent setting timestamp of delta operations being same as previous value's
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-17112
>                 URL: https://issues.apache.org/jira/browse/HBASE-17112
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.1.7, 0.98.23, 1.2.4
>            Reporter: Phil Yang
>            Assignee: Phil Yang
>         Attachments: HBASE-17112-branch-1-v1.patch, 
> HBASE-17112-branch-1.1-v1.patch, HBASE-17112-v1.patch, HBASE-17112-v2.patch
>
>
> In delta operations, Increment and Append. We will read current value first 
> and then write the new whole result into WAL as the type of Put with current 
> timestamp. If the previous ts is larger than current ts, we will use the 
> previous ts.
> If we have two Puts with same TS, we will ignore the Put with lower sequence 
> id. It is not friendly with versioning. And for replication we will drop 
> sequence id  while writing to peer cluster so in the slave we don't know what 
> the order they are being written. If the pushing is disordered, the result 
> will be wrong.
> We can set the new ts to previous+1 if the previous is not less than now.



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