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https://issues.apache.org/jira/browse/HADOOP-17421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17247847#comment-17247847
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Hadoop QA commented on HADOOP-17421:
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|| Vote || Subsystem || Runtime ||  Logfile || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  1m 
47s{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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 27m 
47s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 29m 
50s{color} | {color:green}{color} | {color:green} trunk passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.18.04 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 25m 
10s{color} | {color:green}{color} | {color:green} trunk passed with JDK Private 
Build-1.8.0_275-8u275-b01-0ubuntu1~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
56s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
57s{color} | {color:green}{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
21m 40s{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}  0m 
55s{color} | {color:green}{color} | {color:green} trunk passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.18.04 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
31s{color} | {color:green}{color} | {color:green} trunk passed with JDK Private 
Build-1.8.0_275-8u275-b01-0ubuntu1~18.04-b01 {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  2m 
21s{color} | {color:blue}{color} | {color:blue} Used deprecated FindBugs 
config; considering switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
19s{color} | {color:green}{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} || ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
54s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 21m 
59s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.18.04 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 21m 
59s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 18m 
56s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Private Build-1.8.0_275-8u275-b01-0ubuntu1~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 18m 
56s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
44s{color} | {color:green}{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 
26s{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} 
16m 50s{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}  0m 
56s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.18.04 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
28s{color} | {color:green}{color} | {color:green} the patch passed with JDK 
Private Build-1.8.0_275-8u275-b01-0ubuntu1~18.04-b01 {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
30s{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} 10m 
26s{color} | {color:green}{color} | {color:green} hadoop-common in the patch 
passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
46s{color} | {color:green}{color} | {color:green} The patch does not generate 
ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}190m 58s{color} | 
{color:black}{color} | {color:black}{color} |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/PreCommit-HADOOP-Build/129/artifact/out/Dockerfile
 |
| JIRA Issue | HADOOP-17421 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13016911/HADOOP-17421.002.patch
 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux a36de336d203 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 / 9bd3c9bc506 |
| Default Java | Private Build-1.8.0_275-8u275-b01-0ubuntu1~18.04-b01 |
| Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.18.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_275-8u275-b01-0ubuntu1~18.04-b01 |
|  Test Results | 
https://ci-hadoop.apache.org/job/PreCommit-HADOOP-Build/129/testReport/ |
| Max. process+thread count | 1344 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://ci-hadoop.apache.org/job/PreCommit-HADOOP-Build/129/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
| Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |


This message was automatically generated.



> Specify user's queue via configuration in FairCallQueue 
> --------------------------------------------------------
>
>                 Key: HADOOP-17421
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17421
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Janus Chow
>            Assignee: Janus Chow
>            Priority: Major
>         Attachments: HADOOP-17421.001.patch, HADOOP-17421.002.patch, 
> static_user_performance_test.png
>
>
> The feature of FairCallQueue helps a lot in maintaining a fair and good 
> service in a multi-tenant cluster, each user is assigned to queues with 
> different priority to reach this goal. But in production, we met some 
> problems that the automatic assignment won't fit, the problems are as follows:
>  # We have a service account that would send more NN requests, for some 
> reasons, we would like to keep this user and allow this user to keep this 
> volume of operations. When we deployed FairCallQueue, this service user would 
> be treated as a bad user and assigned to a lower queue, causing some slowness 
> on the service account.
>  # We are having more Flink jobs writing checkpoints to our NN, and the 
> checkpoint operations have a characteristic that they would have a 
> periodically high cost on the NN with an interval of several minutes. 
> FairCallQueue (with cost-based enabled) doesn't have good control of this 
> kind of operations because when this kind of operations starts, the cost in 
> the decay window of this user is quite low, so the user will be assigned to 
> queue 0, after some windows, when the users' high cost has got the attention 
> and assigned to a lower queue, the user's operations are already finished. 
> For problem 1, we noticed that there is already an option mentioned in 
> HADOOP-17165, but in our case, the service account isn't that important that 
> we'd allow it to always be assigned to queue 0. 
> To solve these problems, we'd like to raise a solution by specifying the 
> queue for some static users via config. The basic design is as follows:
>  * Specify the static users in config for each queue.
>  * Load the mapping from the config while initializing the callqueue.
>  * Check the configured queue for each user when assigning the queue.
>  * The cost time of the static users would not be count in our decay 
> calculation to mitigate the impacts on other normal users' costs.
>  



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