[MAPREDUCE-5232] log classpath and other key properties on child JVM start

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.4-alpha
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: mrv1, mrv2
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Sangjin Lee
• Reporter: Sangjin Lee
• Created: 09/May/13 21:14
• Updated: 30/Aug/16 01:20
• Resolved: 14/May/13 23:44

Description

It would be great if we log vital information such as classpath, etc. upon a mapreduce child JVM start. This would help a great deal in terms of troubleshooting classpath issues, etc. Today it is pretty difficult to debug this unless you preserve the container script.

Maybe it can log things like classpath, os name/version, java version, etc. at the beginning of the child JVM start.