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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19732) Replica regions does not return back the MSLAB chunks to pool
Date Fri, 12 Jan 2018 08:37:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323702#comment-16323702
] 

Hadoop QA commented on HBASE-19732:
-----------------------------------

| (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 12s{color} | {color:blue}
Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  0s{color} | {color:blue}
Findbugs executables are not available. {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:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 23s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 51s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 17s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  6m 27s{color}
| {color:green} branch has no errors when building our shaded downstream artifacts. {color}
|
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 30s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 21s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 53s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 53s{color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m 12s{color} | {color:red}
hbase-server: The patch generated 1 new + 45 unchanged - 1 fixed = 46 total (was 46) {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}  5m 24s{color}
| {color:green} patch has no errors when building our shaded downstream artifacts. {color}
|
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 23m  6s{color}
| {color:green} Patch does not cause any errors with Hadoop 2.6.5 2.7.4 or 3.0.0. {color}
|
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 26s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}100m 59s{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} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}145m 50s{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:eee3b01 |
| JIRA Issue | HBASE-19732 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12905811/HBASE-19732_2.patch
|
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  shadedjars  hadoopcheck  hbaseanti
 checkstyle  compile  |
| uname | Linux 59a86a44ef25 3.13.0-133-generic #182-Ubuntu SMP Tue Sep 19 15:49:21 UTC 2017
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 / 4bd6ac3e10 |
| maven | version: Apache Maven 3.5.2 (138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T07:58:13Z)
|
| Default Java | 1.8.0_151 |
| checkstyle | https://builds.apache.org/job/PreCommit-HBASE-Build/11037/artifact/patchprocess/diff-checkstyle-hbase-server.txt
|
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/11037/artifact/patchprocess/patch-unit-hbase-server.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/11037/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/11037/console |
| Powered by | Apache Yetus 0.6.0   http://yetus.apache.org |


This message was automatically generated.



> Replica regions does not return back the MSLAB chunks to pool
> -------------------------------------------------------------
>
>                 Key: HBASE-19732
>                 URL: https://issues.apache.org/jira/browse/HBASE-19732
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha-4
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Critical
>             Fix For: 2.0.0-beta-2
>
>         Attachments: HBASE-19732.patch, HBASE-19732_1.patch, HBASE-19732_2.patch
>
>
> When we have region replica enabled, we try to replicate the flush markers. In the replica
region on receiving the FLUSH_START_MARKER we create a snapshot. On receiving COMMIT_FLUSH_MARKER
we just update the store files and clear the snapshot. But in the recent trunk code while
creating snapshot (need to verify in other  branches too)
> {code}
>     this.timeRangeTracker = snapshot.getTimeRangeTracker();
>     this.scanners = snapshot.getScanners(Long.MAX_VALUE, Long.MAX_VALUE);
>     this.tagsPresent = snapshot.isTagsPresent();
> {code}
> The scanners that we create internally increment the openScannerCount per MSLAB. But
since in this case we don't call scanner.close() we don't decrement the scanner count and
so the MSLAB chunks are not returned back to the pool when the snapshot is closed in the replica
region.
> {code}
> int count  = openScannerCount.get();
>     LOG.info("the count is "+count);
>     if(count == 0) {
>       recycleChunks();
> {code}
> This is a critical bug. 



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