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Jonathan Eagles commented on YARN-1386: --------------------------------------- +1. Great fix, Jason. > NodeManager mistakenly loses resources and relocalizes them > ----------------------------------------------------------- > > Key: YARN-1386 > URL: https://issues.apache.org/jira/browse/YARN-1386 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Affects Versions: 0.23.10, 2.2.0 > Reporter: Jason Lowe > Assignee: Jason Lowe > Priority: Critical > Attachments: YARN-1386.patch, YARN-1386.patch > > > When a local resource that should already be present is requested again, the > nodemanager checks to see if it still present. However the method it uses to > check for presence is via File.exists() as the user of the nodemanager > process. If the resource was a private resource localized for another user, > it will be localized to a location that is not accessible by the nodemanager > user. Therefore File.exists() returns false, the nodemanager mistakenly > believes the resource is no longer available, and it proceeds to localize it > over and over. -- This message was sent by Atlassian JIRA (v6.1#6144)