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https://issues.apache.org/jira/browse/HDFS-16040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17351570#comment-17351570
 ] 

Hadoop QA commented on HDFS-16040:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime ||  Logfile || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  1m 
15s{color} | {color:blue}{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} || ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green}{color} | {color:green} No case conflicting files 
found. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green}{color} | {color:green} The patch does not contain any 
@author tags. {color} |
| {color:green}+1{color} | {color:green} {color} | {color:green}  0m  0s{color} 
| {color:green}test4tests{color} | {color:green} The patch appears to include 1 
new or modified test files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} || ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  3m 
52s{color} | {color:blue}{color} | {color:blue} Maven dependency ordering for 
branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 20m 
58s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 20m 
58s{color} | {color:green}{color} | {color:green} trunk passed with JDK 
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 18m 
37s{color} | {color:green}{color} | {color:green} trunk passed with JDK Private 
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  4m 
 0s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  3m  
4s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
21m 25s{color} | {color:green}{color} | {color:green} branch has no errors when 
building and testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  2m  
7s{color} | {color:green}{color} | {color:green} trunk passed with JDK 
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  3m 
10s{color} | {color:green}{color} | {color:green} trunk passed with JDK Private 
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 32m 
33s{color} | {color:blue}{color} | {color:blue} Both FindBugs and SpotBugs are 
enabled, using SpotBugs. {color} |
| {color:green}+1{color} | {color:green} spotbugs {color} | {color:green}  5m 
52s{color} | {color:green}{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} || ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
28s{color} | {color:blue}{color} | {color:blue} Maven dependency ordering for 
patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  2m 
12s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 22m 
11s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 22m 
11s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 18m 
51s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 18m 
51s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
3m 38s{color} | 
{color:orange}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/615/artifact/out/diff-checkstyle-root.txt{color}
 | {color:orange} root: The patch generated 3 new + 202 unchanged - 0 fixed = 
205 total (was 202) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  3m  
7s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green}{color} | {color:green} The patch has no whitespace 
issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
13m 31s{color} | {color:green}{color} | {color:green} patch has no errors when 
building and testing our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  2m 
16s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  3m 
25s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 {color} |
| {color:green}+1{color} | {color:green} spotbugs {color} | {color:green}  6m  
1s{color} | {color:green}{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} || ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 17m  
6s{color} | {color:green}{color} | {color:green} hadoop-common in the patch 
passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}236m 34s{color} 
| 
{color:red}https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/615/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt{color}
 | {color:red} hadoop-hdfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  1m 
12s{color} | {color:green}{color} | {color:green} The patch does not generate 
ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}433m 19s{color} | 
{color:black}{color} | {color:black}{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDirectoryScanner |
|   | hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks |
|   | hadoop.hdfs.server.namenode.ha.TestHAAppend |
|   | hadoop.hdfs.server.namenode.ha.TestStandbyCheckpoints |
|   | hadoop.hdfs.server.namenode.ha.TestPipelinesFailover |
|   | hadoop.cli.TestErasureCodingCLI |
|   | hadoop.hdfs.TestDFSUpgradeFromImage |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/615/artifact/out/Dockerfile
 |
| JIRA Issue | HDFS-16040 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13025961/HDFS-16040.002.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle spotbugs |
| uname | Linux 88d6e657cf43 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / c4581827a92 |
| Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
|  Test Results | 
https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/615/testReport/ |
| Max. process+thread count | 3293 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output | 
https://ci-hadoop.apache.org/job/PreCommit-HDFS-Build/615/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |


This message was automatically generated.



> RpcQueueTime metric counts requeued calls as unique events.
> -----------------------------------------------------------
>
>                 Key: HDFS-16040
>                 URL: https://issues.apache.org/jira/browse/HDFS-16040
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs
>    Affects Versions: 2.10.0, 3.3.0
>            Reporter: Simbarashe Dzinamarira
>            Assignee: Simbarashe Dzinamarira
>            Priority: Major
>         Attachments: HDFS-16040.001.patch, HDFS-16040.002.patch
>
>
> The RpcQueueTime metric is updated every time a call is re-queued while 
> waiting for the server state to reach the call's client's state ID. This is 
> in contrast to RpcProcessingTime which is only updated when the call if 
> finally processed.
> On the Observer NameNode this can result in RpcQueueTimeNumOps being much 
> larger than RpcProcessingTimeNumOps. The re-queueing is an internal 
> optimization to avoid blocking and shouldn't result in an inflated metric.



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