[ https://issues.apache.org/jira/browse/YARN-4041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14967776#comment-14967776 ]
Hadoop QA commented on YARN-4041: --------------------------------- \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | pre-patch | 19m 20s | Pre-patch trunk compilation is healthy. | | {color:green}+1{color} | @author | 0m 0s | The patch does not contain any @author tags. | | {color:green}+1{color} | tests included | 0m 0s | The patch appears to include 1 new or modified test files. | | {color:green}+1{color} | javac | 9m 1s | There were no new javac warning messages. | | {color:green}+1{color} | javadoc | 11m 39s | There were no new javadoc warning messages. | | {color:green}+1{color} | release audit | 0m 25s | The applied patch does not increase the total number of release audit warnings. | | {color:green}+1{color} | checkstyle | 0m 59s | There were no new checkstyle issues. | | {color:green}+1{color} | whitespace | 0m 1s | The patch has no lines that end in whitespace. | | {color:green}+1{color} | install | 1m 41s | mvn install still works. | | {color:green}+1{color} | eclipse:eclipse | 0m 38s | The patch built with eclipse:eclipse. | | {color:green}+1{color} | findbugs | 1m 39s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. | | {color:red}-1{color} | yarn tests | 58m 36s | Tests failed in hadoop-yarn-server-resourcemanager. | | | | 104m 5s | | \\ \\ || Reason || Tests || | Failed unit tests | hadoop.yarn.server.resourcemanager.scheduler.fifo.TestFifoScheduler | | | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesAppsModification | | | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesCapacitySched | | | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesForCSWithPartitions | \\ \\ || Subsystem || Report/Notes || | Patch URL | http://issues.apache.org/jira/secure/attachment/12767832/0004-YARN-4041.patch | | Optional Tests | javadoc javac unit findbugs checkstyle | | git revision | trunk / e27c2ae | | hadoop-yarn-server-resourcemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/9511/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt | | Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/9511/testReport/ | | Java | 1.7.0_55 | | uname | Linux asf906.gq1.ygridcore.net 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 | | Console output | https://builds.apache.org/job/PreCommit-YARN-Build/9511/console | This message was automatically generated. > Slow delegation token renewal can severely prolong RM recovery > -------------------------------------------------------------- > > Key: YARN-4041 > URL: https://issues.apache.org/jira/browse/YARN-4041 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 2.6.0 > Reporter: Jason Lowe > Assignee: Sunil G > Attachments: 0001-YARN-4041.patch, 0002-YARN-4041.patch, > 0003-YARN-4041.patch, 0004-YARN-4041.patch > > > When the RM does a work-preserving restart it synchronously tries to renew > delegation tokens for every active application. If a token server happens to > be down or is running slow and a lot of the active apps were using tokens > from that server then it can have a huge impact on the time it takes the RM > to process the restart. -- This message was sent by Atlassian JIRA (v6.3.4#6332)