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https://issues.apache.org/jira/browse/HBASE-22412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16841929#comment-16841929
 ] 

HBase QA commented on HBASE-22412:
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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}  0m 
20s{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 2 new or modified test 
files. {color} |
|| || || || {color:brown} HBASE-21879 Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
26s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
23s{color} | {color:green} HBASE-21879 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
42s{color} | {color:green} HBASE-21879 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
 3s{color} | {color:green} HBASE-21879 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
36s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  3m 
12s{color} | {color:blue} hbase-server in HBASE-21879 has 11 extant Findbugs 
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
14s{color} | {color:green} HBASE-21879 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
14s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
12s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
 1s{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 
40s{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 54s{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}  5m  
8s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
14s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  2m 
35s{color} | {color:green} hbase-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
27s{color} | {color:green} hbase-hadoop-compat in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
32s{color} | {color:green} hbase-hadoop2-compat in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}140m  8s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  1m 
26s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}193m 53s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.replication.TestReplicationDroppedTables |
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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/337/artifact/patchprocess/Dockerfile
 |
| JIRA Issue | HBASE-22412 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12968971/HBASE-22412.HBASE-21879.v3.patch
 |
| Optional Tests |  dupname  asflicense  javac  javadoc  unit  findbugs  
shadedjars  hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 839e9fdd00a6 4.4.0-143-generic #169~14.04.2-Ubuntu SMP Wed Feb 
13 15:00:41 UTC 2019 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/hbase-personality.sh |
| git revision | HBASE-21879 / ab05d9d683 |
| maven | version: Apache Maven 3.5.4 
(1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z) |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.11 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/337/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/337/testReport/ |
| Max. process+thread count | 5390 (vs. ulimit of 10000) |
| modules | C: hbase-common hbase-hadoop-compat hbase-hadoop2-compat 
hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/337/console |
| Powered by | Apache Yetus 0.9.0 http://yetus.apache.org |


This message was automatically generated.



> Improve the metrics in ByteBuffAllocator
> ----------------------------------------
>
>                 Key: HBASE-22412
>                 URL: https://issues.apache.org/jira/browse/HBASE-22412
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Zheng Hu
>            Assignee: Zheng Hu
>            Priority: Major
>         Attachments: HBASE-22412.HBASE-21879.v1.patch, 
> HBASE-22412.HBASE-21879.v2.patch, HBASE-22412.HBASE-21879.v3.patch, JMX.png, 
> web-UI.png
>
>
> Address the comment in HBASE-22387: 
> bq. The ByteBuffAllocator#getFreeBufferCount will be O(N) complexity, because 
> the buffers here is an ConcurrentLinkedQueue. It's worth file an issue for 
> this.
> Also I think we should use the allcated bytes instead of allocation number to 
> evaluate the heap allocation percent , so that we can decide whether the 
> ByteBuffer is too small and whether will have higher GC pressure.  Assume the 
> case:  the buffer size is 64KB, and each time we have a block with 65KB, then 
> it will have one heap allocation (1KB) and one pool allocation (64KB), if 
> only consider the allocation num, then the heap allocation ratio will be 1 / 
> (1 + 1) = 50%, but if consider the allocation bytes, the allocation ratio 
> will be  1KB / 65KB = 1.5%.
> If the heap allocation percent is less than  
> hbase.ipc.server.reservoir.minimal.allocating.size /  
> hbase.ipc.server.allocator.buffer.size,  then the allocator  works fine, 
> otherwise it's overload. 



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