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Dustin Cote commented on MAPREDUCE-6491: ---------------------------------------- Whoops, looks like my Configuration.java change didn't take in the patch I uploaded. Let me fix that. > Environment variable handling assumes values should be appended > --------------------------------------------------------------- > > Key: MAPREDUCE-6491 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6491 > Project: Hadoop Map/Reduce > Issue Type: Bug > Affects Versions: 2.2.0 > Reporter: Jason Lowe > Assignee: Dustin Cote > Attachments: YARN-2369-1.patch, YARN-2369-2.patch, YARN-2369-3.patch, > YARN-2369-4.patch, YARN-2369-5.patch, YARN-2369-6.patch, YARN-2369-7.patch, > YARN-2369-8.patch > > > When processing environment variables for a container context the code > assumes that the value should be appended to any pre-existing value in the > environment. This may be desired behavior for handling path-like environment > variables such as PATH, LD_LIBRARY_PATH, CLASSPATH, etc. but it is a > non-intuitive and harmful way to handle any variable that does not have > path-like semantics. -- This message was sent by Atlassian JIRA (v6.3.4#6332)