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https://issues.apache.org/jira/browse/HBASE-8770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16384354#comment-16384354
 ] 

Hadoop QA commented on HBASE-8770:
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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}  0m 
20s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:brown} branch-2 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
 2s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  3m 
15s{color} | {color:green} branch-2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
 4s{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} javadoc {color} | {color:green}  2m 
54s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}161m 
10s{color} | {color:green} root in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
29s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}176m 30s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:9f2f2db |
| JIRA Issue | HBASE-8770 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12912823/HBASE-8770.branch-2.002.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  |
| uname | Linux 5856f71b4139 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9 
14:43:09 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | branch-2 / 9e9b347d66 |
| maven | version: Apache Maven 3.5.2 
(138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T07:58:13Z) |
| Default Java | 1.8.0_151 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11784/testReport/ |
| Max. process+thread count | 4220 (vs. ulimit of 10000) |
| modules | C: . U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11784/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> deletes and puts with the same ts should be resolved according to mvcc/seqNum
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-8770
>                 URL: https://issues.apache.org/jira/browse/HBASE-8770
>             Project: HBase
>          Issue Type: Brainstorming
>            Reporter: Sergey Shelukhin
>            Assignee: stack
>            Priority: Blocker
>             Fix For: 2.0.0
>
>         Attachments: HBASE-8770.branch-2.001.patch, 
> HBASE-8770.branch-2.002.patch
>
>
> This came up during HBASE-8721. Puts with the same ts are resolved by seqNum. 
> It's not clear why deletes with the same ts as a put should always mask the 
> put, rather than also being resolve by seqNum.
> What do you think?



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