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https://issues.apache.org/jira/browse/HBASE-20361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429823#comment-16429823
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Hadoop QA commented on HBASE-20361:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
22s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 1 new or modified test
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m
7s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
27s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
15s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 4m
30s{color} | {color:green} branch has no errors when building our shaded
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m
32s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
14s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
16s{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} shadedjars {color} | {color:green} 4m
20s{color} | {color:green} patch has no errors when building our shaded
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}
17m 11s{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} findbugs {color} | {color:green} 0m
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
12s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 15m
15s{color} | {color:green} hbase-mapreduce in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
11s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 48m 57s{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:d8b550f |
| JIRA Issue | HBASE-20361 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12917995/HBASE-20361.master.002.patch
|
| Optional Tests | asflicense javac javadoc unit findbugs shadedjars
hadoopcheck hbaseanti checkstyle compile |
| uname | Linux e16226f39eed 4.4.0-104-generic #127-Ubuntu SMP Mon Dec 11
12:16:42 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 / f66343050f |
| maven | version: Apache Maven 3.5.3
(3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-24T19:49:05Z) |
| Default Java | 1.8.0_162 |
| findbugs | v3.1.0-RC3 |
| Test Results |
https://builds.apache.org/job/PreCommit-HBASE-Build/12344/testReport/ |
| Max. process+thread count | 4680 (vs. ulimit of 10000) |
| modules | C: hbase-mapreduce U: hbase-mapreduce |
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/12344/console |
| Powered by | Apache Yetus 0.7.0 http://yetus.apache.org |
This message was automatically generated.
> Non-successive TableInputSplits may wrongly be merged by auto balancing
> feature
> -------------------------------------------------------------------------------
>
> Key: HBASE-20361
> URL: https://issues.apache.org/jira/browse/HBASE-20361
> Project: HBase
> Issue Type: Bug
> Components: mapreduce
> Reporter: Yuki Tawara
> Priority: Major
> Attachments: HBASE-20361.master.001.patch,
> HBASE-20361.master.002.patch
>
>
> TableInputFormatBase class offers users a mechanism to exclude specific
> splits from returned list of TableInputFormatBase#getSplits through
> TableInputFormatBase#includeRegionInSplit.
> It also offers users a feature called "auto balancing" to mitigate data skew
> by splitting large splits and merging small splits.
> If a user overrides TableInputFormatBase#includeRegionInSplit, i th split and
> i+1 th split may not be successive(i th split's end key is smaller than i+1
> th split's start key).
> If he or she further enable auto balancing feature, non-successive splits can
> be merged, which means excluded splits between merged non-successive splits
> "revive".
> To avoid such cases, we should not merge non-successive splits.
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