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Hadoop QA commented on YARN-3591: --------------------------------- \\ \\ | (/) *{color:green}+1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | pre-patch | 14m 42s | 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 | 7m 33s | There were no new javac warning messages. | | {color:green}+1{color} | javadoc | 9m 37s | There were no new javadoc warning messages. | | {color:green}+1{color} | release audit | 0m 22s | The applied patch does not increase the total number of release audit warnings. | | {color:green}+1{color} | checkstyle | 0m 20s | 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 33s | mvn install still works. | | {color:green}+1{color} | eclipse:eclipse | 0m 33s | The patch built with eclipse:eclipse. | | {color:green}+1{color} | findbugs | 1m 2s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. | | {color:green}+1{color} | yarn tests | 6m 28s | Tests passed in hadoop-yarn-server-nodemanager. | | | | 42m 15s | | \\ \\ || Subsystem || Report/Notes || | Patch URL | http://issues.apache.org/jira/secure/attachment/12734083/YARN-3591.4.patch | | Optional Tests | javadoc javac unit findbugs checkstyle | | git revision | trunk / ce53c8e | | hadoop-yarn-server-nodemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/8019/artifact/patchprocess/testrun_hadoop-yarn-server-nodemanager.txt | | Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8019/testReport/ | | Java | 1.7.0_55 | | uname | Linux asf907.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/8019/console | This message was automatically generated. > Resource Localisation on a bad disk causes subsequent containers failure > ------------------------------------------------------------------------- > > Key: YARN-3591 > URL: https://issues.apache.org/jira/browse/YARN-3591 > Project: Hadoop YARN > Issue Type: Bug > Affects Versions: 2.7.0 > Reporter: Lavkesh Lahngir > Assignee: Lavkesh Lahngir > Attachments: 0001-YARN-3591.1.patch, 0001-YARN-3591.patch, > YARN-3591.2.patch, YARN-3591.3.patch, YARN-3591.4.patch > > > It happens when a resource is localised on the disk, after localising that > disk has gone bad. NM keeps paths for localised resources in memory. At the > time of resource request isResourcePresent(rsrc) will be called which calls > file.exists() on the localised path. > In some cases when disk has gone bad, inodes are stilled cached and > file.exists() returns true. But at the time of reading, file will not open. > Note: file.exists() actually calls stat64 natively which returns true because > it was able to find inode information from the OS. > A proposal is to call file.list() on the parent path of the resource, which > will call open() natively. If the disk is good it should return an array of > paths with length at-least 1. -- This message was sent by Atlassian JIRA (v6.3.4#6332)