[ https://issues.apache.org/jira/browse/YARN-9432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16807613#comment-16807613 ]
Hadoop QA commented on YARN-9432: --------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 19s{color} | {color:blue} Docker mode activated. {color} | || || || || {color:brown} Prechecks {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} trunk Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 18m 27s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 46s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 41s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 51s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 13m 34s{color} | {color:green} branch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 27s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 40s{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} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 49s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 49s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 41s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 56s{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} shadedclient {color} | {color:green} 12m 58s{color} | {color:green} patch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 28s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 31s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} unit {color} | {color:red} 82m 53s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch failed. {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}138m 10s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.yarn.server.resourcemanager.rmapp.TestRMAppTransitions | \\ \\ || Subsystem || Report/Notes || | Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f | | JIRA Issue | YARN-9432 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12964534/YARN-9432.002.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux b0fda0ff5ba2 4.4.0-138-generic #164~14.04.1-Ubuntu SMP Fri Oct 5 08:56:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | trunk / 2f75283 | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_191 | | findbugs | v3.1.0-RC1 | | unit | https://builds.apache.org/job/PreCommit-YARN-Build/23862/artifact/out/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt | | Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/23862/testReport/ | | Max. process+thread count | 881 (vs. ulimit of 10000) | | 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/23862/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Excess reserved containers may exist for a long time after its request has > been cancelled or satisfied when multi-nodes enabled > ------------------------------------------------------------------------------------------------------------------------------- > > Key: YARN-9432 > URL: https://issues.apache.org/jira/browse/YARN-9432 > Project: Hadoop YARN > Issue Type: Bug > Components: capacityscheduler > Reporter: Tao Yang > Assignee: Tao Yang > Priority: Major > Attachments: YARN-9432.001.patch, YARN-9432.002.patch > > > Reserved containers may change to be excess after its request has been > cancelled or satisfied, excess reserved containers need to be unreserved > quickly to release resource for others. > For multi-nodes disabled scenario, excess reserved containers can be quickly > released in next node heartbeat, the calling stack is > CapacityScheduler#nodeUpdate --> CapacityScheduler#allocateContainersToNode > --> CapacityScheduler#allocateContainerOnSingleNode. > But for multi-nodes enabled scenario, excess reserved containers have chance > to be released only in allocation process, key phase of the calling stack is > LeafQueue#assignContainers --> LeafQueue#allocateFromReservedContainer. > According to this, excess reserved containers may not be released until its > queue has pending request and has chance to be allocated, and the worst is > that excess reserved containers will never be released and keep holding > resource if there is no additional pending request for this queue. > To solve this problem, my opinion is to directly kill excess reserved > containers when request is satisfied (in FiCaSchedulerApp#apply) or the > allocation number of resource-requests/scheduling-requests is updated to be 0 > (in SchedulerApplicationAttempt#updateResourceRequests / > SchedulerApplicationAttempt#updateSchedulingRequests). > Please feel free to give your suggestions. Thanks. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org