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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15786) Create DBB backed MSLAB pool
Date Thu, 24 Nov 2016 09:53:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15692816#comment-15692816
] 

Hadoop QA commented on HBASE-15786:
-----------------------------------

| (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 13s {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 13 new or modified test files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 14s {color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 35s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 10s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 9s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 40s {color}
| {color:green} master passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 0m 18s {color} | {color:red}
hbase-prefix-tree in master has 1 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 5s {color} | {color:green}
master passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 10s {color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 17s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 10s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 10s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 8s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 40s {color}
| {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s {color} | {color:red}
The patch has 1 line(s) that end in whitespace. Use git apply --whitespace=fix. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 23m 2s {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-alpha1. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 40s {color} | {color:red}
hbase-server generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 25s {color} | {color:red}
hbase-server generated 1 new + 1 unchanged - 0 fixed = 2 total (was 1) {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 46s {color} | {color:green}
hbase-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 58s {color} | {color:green}
hbase-client in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 19s {color} | {color:green}
hbase-prefix-tree in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 86m 56s {color} | {color:green}
hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 53s {color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 134m 4s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| FindBugs | module:hbase-server |
|  |  Incorrect lazy initialization of static field org.apache.hadoop.hbase.regionserver.MemStoreChunkPool.GLOBAL_INSTANCE
in org.apache.hadoop.hbase.regionserver.MemStoreChunkPool.initialize(long, float, float, int,
boolean)  At MemStoreChunkPool.java:field org.apache.hadoop.hbase.regionserver.MemStoreChunkPool.GLOBAL_INSTANCE
in org.apache.hadoop.hbase.regionserver.MemStoreChunkPool.initialize(long, float, float, int,
boolean)  At MemStoreChunkPool.java:[lines 193-212] |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:8d52d23 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12840384/HBASE-15786_V5.patch
|
| JIRA Issue | HBASE-15786 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle
 compile  |
| uname | Linux 94f050431b65 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 13:48:03 UTC 2016
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 / 0b0e857 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| findbugs | https://builds.apache.org/job/PreCommit-HBASE-Build/4610/artifact/patchprocess/branch-findbugs-hbase-prefix-tree-warnings.html
|
| whitespace | https://builds.apache.org/job/PreCommit-HBASE-Build/4610/artifact/patchprocess/whitespace-eol.txt
|
| findbugs | https://builds.apache.org/job/PreCommit-HBASE-Build/4610/artifact/patchprocess/new-findbugs-hbase-server.html
|
| javadoc | https://builds.apache.org/job/PreCommit-HBASE-Build/4610/artifact/patchprocess/diff-javadoc-javadoc-hbase-server.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/4610/testReport/ |
| modules | C: hbase-common hbase-client hbase-prefix-tree hbase-server U: . |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/4610/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> Create DBB backed MSLAB pool
> ----------------------------
>
>                 Key: HBASE-15786
>                 URL: https://issues.apache.org/jira/browse/HBASE-15786
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15786.patch, HBASE-15786_V2.patch, HBASE-15786_V2.patch, HBASE-15786_V3.patch,
HBASE-15786_V4.patch, HBASE-15786_V5.patch
>
>
> We can make use of MSLAB pool for this off heap memstore. 
> Right now one can specify the global memstore size (heap size) as a % of max memory using
a config. We will add another config with which one can specify the global off heap memstore
size. This will be exact size not as %. When off heap memstore in use, we will give this entire
area for the MSLAB pool and that will create off heap chunks. So when cells are added to memstore,
the cell data gets copied into the off heap MSLAB chunk spaces. Note that when the pool size
is not really enough and we need additional chunk creation, we wont use off heap area for
that.  We dony want to create so many on demand DBBs.



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