[MAPREDUCE-5878] some standard JDK APIs are not part of system classes defaults

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.6.0
• Component/s: mrv2
• Target Version/s: 2.6.0
• Hadoop Flags: Reviewed
• Assignee: Sangjin Lee
• Reporter: Sangjin Lee
• Created: 05/May/14 22:11
• Updated: 01/Dec/14 03:07
• Resolved: 14/Aug/14 23:19

Description

There are some standard JDK APIs that are not part of the mapreduce.job.classloader.system.classes property value.

Currently the default value covers only "java.,javax." from the JDK. However, there are other APIs that are as well-established as these, such as org.w3c.dom and org.xml.sax. In other similar systems (e.g. OSGi), it is a standard practice to include both of these packages in the system classes. We should add these to the default values.

Issue Links

• depends upon: MAPREDUCE-5814 fat jar with *-default.xml may fail when mapreduce.job.classloader=true.