[MAPREDUCE-6472] MapReduce AM should have java.io.tmpdir=./tmp to be consistent with tasks

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 2.7.2, 3.0.0-alpha1
• Component/s: mr-am
• Target Version/s: 2.7.2
• Hadoop Flags: Reviewed
• Assignee: Naganarasimha G R
• Reporter: Jason Darrell Lowe
• Created: 08/Sep/15 19:19
• Updated: 06/Jan/17 01:48
• Resolved: 15/Sep/15 19:46

Description

MapReduceChildJVM.getVMCommand ensures that all tasks have -Djava.io.tmpdir=./tmp set as part of the task command-line, but this is only used for tasks. The AM itself does not have a corresponding java.io.tmpdir setting. It should also use the same tmpdir setting to avoid cases where the AM JVM wants to place files in /tmp by default.

Issue Links

• is duplicated by: MAPREDUCE-6576 AM java.io.tmpdir should be set to $PWD/tmp
• relates to: OOZIE-2209 Oozie launchers to set "java.io.tmpdir" to "./tmp"