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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17912) Avoid major compactions on region server startup
Date Tue, 18 Apr 2017 01:52:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15971981#comment-15971981
] 

Hadoop QA commented on HBASE-17912:
-----------------------------------

| (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: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} 3m 22s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 36s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 48s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 45s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 27s {color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 40s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 37s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 46s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {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} hadoopcheck {color} | {color:green} 27m 53s {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-alpha2. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 56s {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 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 113m 13s {color} | {color:red}
hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 21s {color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 153m 54s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.snapshot.TestExportSnapshot |
|   | hadoop.hbase.snapshot.TestMobExportSnapshot |
|   | hadoop.hbase.snapshot.TestMobSecureExportSnapshot |
|   | hadoop.hbase.snapshot.TestSecureExportSnapshot |
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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/12863701/HBASE-17912.patch
|
| JIRA Issue | HBASE-17912 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle
 compile  |
| uname | Linux 63b965d428a4 3.13.0-107-generic #154-Ubuntu SMP Tue Dec 20 09:57:27 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 / ecdfb82 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/6473/artifact/patchprocess/patch-unit-hbase-server.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-HBASE-Build/6473/artifact/patchprocess/patch-unit-hbase-server.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/6473/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/6473/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> Avoid major compactions on region server startup
> ------------------------------------------------
>
>                 Key: HBASE-17912
>                 URL: https://issues.apache.org/jira/browse/HBASE-17912
>             Project: HBase
>          Issue Type: Improvement
>          Components: Compaction
>    Affects Versions: 2.0.0, 1.3.1, 0.98.24
>            Reporter: Geoffrey Jacoby
>            Assignee: Geoffrey Jacoby
>         Attachments: HBASE-17912.patch
>
>
> The HRegionServer.CompactionChecker chore wakes up every 10s and for each store in each
region mods against a chore frequency (by default slightly under 3 hours) to see if it's time
to check if a major compaction is necessary for that store. 
> The check to see if it needs to check for major compactions is calculated by 
>     if (iteration % multiplier != 0) continue;
> where iteration is the number of times the chore has woken up. 
> Because 0 % anything is 0, this will always check for necessary major compactions on
each store when this chore is first run after the region server starts up. This can result
in compaction storms when doing a rolling restart, because, for example, the new instance
of the region server might get a lower jitter value than the old one had.



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