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Hadoop QA commented on YARN-4280: --------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 29s {color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 23s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 31s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 23s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 34s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m 54s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 19s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 28s {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:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 20s {color} | {color:red} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 1 new + 326 unchanged - 1 fixed = 327 total (was 327) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 31s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 10s {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} findbugs {color} | {color:green} 0m 59s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 17s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 35m 37s {color} | {color:green} hadoop-yarn-server-resourcemanager in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 16s {color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 49m 34s {color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:e2f6409 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12812489/YARN-4280.004.patch | | JIRA Issue | YARN-4280 | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle | | uname | Linux 731601b35c75 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh | | git revision | trunk / 4ee3543 | | Default Java | 1.8.0_91 | | findbugs | v3.0.0 | | checkstyle | https://builds.apache.org/job/PreCommit-YARN-Build/12106/artifact/patchprocess/diff-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt | | Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/12106/testReport/ | | modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager | | Console output | https://builds.apache.org/job/PreCommit-YARN-Build/12106/console | | Powered by | Apache Yetus 0.3.0 http://yetus.apache.org | This message was automatically generated. > CapacityScheduler reservations may not prevent indefinite postponement on a > busy cluster > ---------------------------------------------------------------------------------------- > > Key: YARN-4280 > URL: https://issues.apache.org/jira/browse/YARN-4280 > Project: Hadoop YARN > Issue Type: Bug > Components: capacity scheduler > Affects Versions: 2.6.1, 2.8.0, 2.7.1 > Reporter: Kuhu Shukla > Assignee: Kuhu Shukla > Attachments: YARN-4280.001.patch, YARN-4280.002.patch, > YARN-4280.003.patch, YARN-4280.004.patch > > > Consider the following scenario: > There are 2 queues A(25% of the total capacity) and B(75%), both can run at > total cluster capacity. There are 2 applications, appX that runs on Queue A, > always asking for 1G containers(non-AM) and appY runs on Queue B asking for 2 > GB containers. > The user limit is high enough for the application to reach 100% of the > cluster resource. > appX is running at total cluster capacity, full with 1G containers releasing > only one container at a time. appY comes in with a request of 2GB container > but only 1 GB is free. Ideally, since appY is in the underserved queue, it > has higher priority and should reserve for its 2 GB request. Since this > request puts the alloc+reserve above total capacity of the cluster, > reservation is not made. appX comes in with a 1GB request and since 1GB is > still available, the request is allocated. > This can continue indefinitely causing priority inversion. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org