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https://issues.apache.org/jira/browse/HBASE-22422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16848366#comment-16848366
]
HBase QA commented on HBASE-22422:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 2m
41s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m
1s{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 3 new or modified test
files. {color} |
|| || || || {color:brown} HBASE-21879 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m
26s{color} | {color:green} HBASE-21879 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
51s{color} | {color:green} HBASE-21879 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
11s{color} | {color:green} HBASE-21879 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 4m
23s{color} | {color:green} branch has no errors when building our shaded
downstream artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 2m
47s{color} | {color:blue} hbase-server in HBASE-21879 has 11 extant Findbugs
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
32s{color} | {color:green} HBASE-21879 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
50s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
50s{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 + 130
unchanged - 2 fixed = 131 total (was 132) {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
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}
8m 25s{color} | {color:green} Patch does not cause any errors with Hadoop 2.7.4
or 3.0.0. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
32s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}130m
17s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
29s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}170m 49s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce base:
https://builds.apache.org/job/PreCommit-HBASE-Build/419/artifact/patchprocess/Dockerfile
|
| JIRA Issue | HBASE-22422 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12969803/HBASE-22422.HBASE-21879.v02.patch
|
| Optional Tests | dupname asflicense javac javadoc unit findbugs
shadedjars hadoopcheck hbaseanti checkstyle compile |
| uname | Linux a8b269ea44a8 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2
17:16:02 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/hbase-personality.sh |
| git revision | HBASE-21879 / 111c95c11c |
| maven | version: Apache Maven 3.5.4
(1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z) |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.11 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HBASE-Build/419/artifact/patchprocess/diff-checkstyle-hbase-server.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HBASE-Build/419/testReport/ |
| Max. process+thread count | 4895 (vs. ulimit of 10000) |
| modules | C: hbase-server U: hbase-server |
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/419/console |
| Powered by | Apache Yetus 0.9.0 http://yetus.apache.org |
This message was automatically generated.
> Retain an ByteBuff with refCnt=0 when getBlock from LRUCache
> ------------------------------------------------------------
>
> Key: HBASE-22422
> URL: https://issues.apache.org/jira/browse/HBASE-22422
> Project: HBase
> Issue Type: Sub-task
> Components: BlockCache
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments: 0001-debug2.patch, 0001-debug2.patch, 0001-debug2.patch,
> 0001-debug3.patch, 0001-debug4.patch,
> HBASE-22422-qps-after-fix-the-zero-retain-bug.png,
> HBASE-22422.HBASE-21879.v01.patch, HBASE-22422.HBASE-21879.v02.patch,
> LRUBlockCache-getBlock.png, debug.patch,
> failed-to-check-positive-on-web-ui.png, image-2019-05-15-12-00-03-641.png
>
>
> After runing YCSB scan/get benchmark in our XiaoMi cluster, we found the get
> QPS dropped from 25000/s to hunderds per second in a cluster with five
> nodes.
> After enable the debug log at YCSB client side, I found the following
> stacktrace , see
> https://issues.apache.org/jira/secure/attachment/12968745/image-2019-05-15-12-00-03-641.png.
>
> After looking into the stractrace, I can ensure that the zero refCnt block is
> an intermedia index block, see [2] http://hbase.apache.org/images/hfilev2.png
> Need a patch to fix this.
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