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https://issues.apache.org/jira/browse/HBASE-15716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15351709#comment-15351709
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Hadoop QA commented on HBASE-15716:
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| (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} 4m
15s {color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 56s
{color} | {color:green} branch-1 passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s
{color} | {color:green} branch-1 passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
19s {color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
18s {color} | {color:green} branch-1 passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 8s
{color} | {color:red} hbase-server in branch-1 has 1 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 50s
{color} | {color:green} branch-1 passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 38s
{color} | {color:green} branch-1 passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
1s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 41s
{color} | {color:green} the patch passed with JDK v1.8.0 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 41s
{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_80 {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} 1m
7s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
17s {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}
17m 51s {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} 2m 7s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 27s
{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_80 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 89m 45s {color}
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
16s {color} | {color:green} Patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 126m 9s {color}
| {color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.client.TestSnapshotCloneIndependence |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12813808/HBASE-15716.branch-1.001.patch
|
| JIRA Issue | HBASE-15716 |
| Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck
hbaseanti checkstyle compile |
| uname | Linux asf906.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 | branch-1 / 385a6e8 |
| Default Java | 1.7.0_80 |
| Multi-JDK versions | /home/jenkins/tools/java/jdk1.8.0:1.8.0
/home/jenkins/jenkins-slave/tools/hudson.model.JDK/JDK_1.7_latest_:1.7.0_80 |
| findbugs | v3.0.0 |
| findbugs |
https://builds.apache.org/job/PreCommit-HBASE-Build/2380/artifact/patchprocess/branch-findbugs-hbase-server-warnings.html
|
| unit |
https://builds.apache.org/job/PreCommit-HBASE-Build/2380/artifact/patchprocess/patch-unit-hbase-server.txt
|
| unit test logs |
https://builds.apache.org/job/PreCommit-HBASE-Build/2380/artifact/patchprocess/patch-unit-hbase-server.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HBASE-Build/2380/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/2380/console |
| Powered by | Apache Yetus 0.2.1 http://yetus.apache.org |
This message was automatically generated.
> HRegion#RegionScannerImpl scannerReadPoints synchronization constrains random
> read
> ----------------------------------------------------------------------------------
>
> Key: HBASE-15716
> URL: https://issues.apache.org/jira/browse/HBASE-15716
> Project: HBase
> Issue Type: Bug
> Components: Performance
> Reporter: stack
> Assignee: stack
> Attachments: 15716.prune.synchronizations.patch,
> 15716.prune.synchronizations.v3.patch, 15716.prune.synchronizations.v4.patch,
> 15716.prune.synchronizations.v4.patch, 15716.wip.more_to_be_done.patch,
> HBASE-15716.branch-1.001.patch, Screen Shot 2016-04-26 at 2.05.45 PM.png,
> Screen Shot 2016-04-26 at 2.06.14 PM.png, Screen Shot 2016-04-26 at 2.07.06
> PM.png, Screen Shot 2016-04-26 at 2.25.26 PM.png, Screen Shot 2016-04-26 at
> 6.02.29 PM.png, Screen Shot 2016-04-27 at 9.49.35 AM.png,
> current-branch-1.vs.NoSynchronization.vs.Patch.png, hits.png,
> remove.locks.patch, remove_cslm.patch
>
>
> Here is a [~lhofhansl] special.
> When we construct the region scanner, we get our read point and then store it
> with the scanner instance in a Region scoped CSLM. This is done under a
> synchronize on the CSLM.
> This synchronize on a region-scoped Map creating region scanners is the
> outstanding point of lock contention according to flight recorder (My work
> load is workload c, random reads).
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