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https://issues.apache.org/jira/browse/HBASE-18945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16203381#comment-16203381
 ] 

Hadoop QA commented on HBASE-18945:
-----------------------------------

| (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 
15s{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 61 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
17s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
35s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  3m  
1s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
43s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  1m 
46s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  8m 
37s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  6m  
4s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  2m 
25s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} scaladoc {color} | {color:green}  1m 
51s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
20s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  3m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  3m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} scalac {color} | {color:green}  3m 
20s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  1m 
59s{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} shadedjars {color} | {color:green}  4m 
 7s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
40m 19s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha4. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  7m  
4s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
16s{color} | {color:red} hbase-common generated 5 new + 0 unchanged - 0 fixed = 
5 total (was 0) {color} |
| {color:green}+1{color} | {color:green} scaladoc {color} | {color:green}  1m 
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
20s{color} | {color:green} hbase-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
36s{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
25s{color} | {color:green} hbase-prefix-tree in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}107m 50s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  9m  
1s{color} | {color:green} hbase-mapreduce in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m 
48s{color} | {color:green} hbase-backup in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
29s{color} | {color:green} hbase-it in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  4m 
20s{color} | {color:green} hbase-spark in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  1m 
54s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}229m 11s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | 
hadoop.hbase.regionserver.TestWalAndCompactingMemStoreFlush |
|   | hadoop.hbase.client.TestAsyncTableGetMultiThreaded |
|   | hadoop.hbase.regionserver.TestRecoveredEdits |
|   | hadoop.hbase.regionserver.TestWALLockup |
|   | hadoop.hbase.regionserver.TestHRegionReplayEvents |
|   | hadoop.hbase.io.hfile.TestScannerFromBucketCache |
|   | hadoop.hbase.regionserver.TestRegionIncrement |
|   | hadoop.hbase.TestIOFencing |
|   | hadoop.hbase.regionserver.TestFailedAppendAndSync |
|   | hadoop.hbase.regionserver.TestStoreScanner |
|   | hadoop.hbase.regionserver.TestMajorCompaction |
| Timed out junit tests | org.apache.hadoop.hbase.TestAcidGuarantees |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:5d60123 |
| JIRA Issue | HBASE-18945 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12891987/HBASE-18945_4.patch |
| Optional Tests |  asflicense  shadedjars  javac  javadoc  unit  findbugs  
hadoopcheck  hbaseanti  checkstyle  compile  scalac  scaladoc  |
| uname | Linux c98ab0ce42a5 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 | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | master / 883c358 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC3 |
| javadoc | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9091/artifact/patchprocess/diff-javadoc-javadoc-hbase-common.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9091/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9091/testReport/ |
| modules | C: hbase-common hbase-client hbase-prefix-tree hbase-server 
hbase-mapreduce hbase-backup hbase-it hbase-spark U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9091/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> Make a Public interface for CellComparator
> ------------------------------------------
>
>                 Key: HBASE-18945
>                 URL: https://issues.apache.org/jira/browse/HBASE-18945
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0-alpha-4
>
>         Attachments: HBASE-18495.patch, HBASE-18945_2.patch, 
> HBASE-18945_3.patch, HBASE-18945_4.patch
>
>
> Based on discussions over in HBASE-18826 and HBASE-18183 it is better we 
> expose CellComparator as a public interface so that it could be used in 
> Region/Store interfaces to be exposed to CPs.
> Currently the Comparator is exposed in Region, STore and StoreFile. There is 
> another discussion whether to expose it at all layers or only at Region. 
> However since we are exposing this to CPs CellComparator being @Private is 
> not the ideal way to do it. We have to change it to LimitedPrivate. But 
> CellComparator has lot of additional methods which are internal (like where a 
> Cell is compared with an incoming byte[] used in index comparsions etc).
> One way to expose is that as being done now in HBASE-18826 - by exposing the 
> return type as Comparator<Cell>. But this is not powerful. It only allows to 
> compare cells. So we try to expose an IA.LimitedPrivate interface that is 
> more powerful and allows comparing individual cell components also. 



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