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https://issues.apache.org/jira/browse/HBASE-15379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15175456#comment-15175456
 ] 

Hadoop QA commented on HBASE-15379:
-----------------------------------

| (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 0s 
{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: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} 4m 
10s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 17s 
{color} | {color:green} master passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 19s 
{color} | {color:green} master passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
15s {color} | {color:green} master passed {color} |
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14s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m 
52s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 20s 
{color} | {color:green} master passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 22s 
{color} | {color:green} master passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
23s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 18s 
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 18s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 20s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 20s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 
16s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
13s {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 44s {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} 1m 1s 
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 20s 
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 21s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 9s 
{color} | {color:green} hbase-common in the patch passed with JDK v1.8.0_74. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 13s 
{color} | {color:green} hbase-common in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
10s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 64m 45s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.9.1 Server=1.9.1 Image:yetus/hbase:date2016-03-02 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12790907/HBASE-15379.patch |
| JIRA Issue | HBASE-15379 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux 2376a116e64b 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 / 5e395c4 |
| findbugs | v3.0.0 |
| JDK v1.7.0_95  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/799/testReport/ |
| modules | C: hbase-common U: hbase-common |
| Max memory used | 189MB |
| Powered by | Apache Yetus 0.1.0   http://yetus.apache.org |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/799/console |


This message was automatically generated.



> Fake cells created in read path not implementing SettableSequenceId
> -------------------------------------------------------------------
>
>                 Key: HBASE-15379
>                 URL: https://issues.apache.org/jira/browse/HBASE-15379
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: Anoop Sam John
>            Assignee: Amal Joshy
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15379-v2.patch, HBASE-15379.patch
>
>
> This issue found by [~appy]. In HBASE-14099  he says,
> I was doing some testing when I hit a weird issue, seems related to this, so 
> re-opening it (apologies in advance if it's not).  Here's the stack trace
> {noformat}
> java.io.IOException: java.lang.UnsupportedOperationException: Cell is not of 
> type org.apache.hadoop.hbase.SettableSequenceId
>       at org.apache.hadoop.hbase.CellUtil.setSequenceId(CellUtil.java:923)
>       at 
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.setCurrentCell(StoreFileScanner.java:231)
>       at 
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.requestSeek(StoreFileScanner.java:389)
>       at 
> org.apache.hadoop.hbase.regionserver.StoreScanner.seekScanners(StoreScanner.java:348)
>       at 
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:212)
>       at 
> org.apache.hadoop.hbase.regionserver.HStore.createScanner(HStore.java:1873)
>       at 
> org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:1863)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:5487)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:2577)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:2563)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:2544)
>       at 
> org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:2534)
>       at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:6659)
>       at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:6624)
>       at 
> org.apache.hadoop.hbase.regionserver.TestWithSingleHRegion.test(TestWithSingleHRegion.java:48)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:606)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
>       at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>       at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
>       at 
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
>       at 
> com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
>       at 
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
> {noformat}
> I think it's because of using changing from KeyValue to a different sub-class 
> of {{Cell}}l which doesn't implement {{SettableSequenceId}}
> {noformat}
> -    this.startKey = 
> KeyValueUtil.createFirstDeleteFamilyOnRow(scan.getStartRow(),
> +    this.startKey = 
> CellUtil.createFirstDeleteFamilyCellOnRow(scan.getStartRow(),
> {noformat}
> To replicate it, download the attached hfiles somewhere, copy the 
> TestWithSingleHRegion class to regionserver tests, change the ROOT_DIR 
> appropriately and run it.



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