[MAPREDUCE-4377] TaskRunner javaopts parsing doesn't handle embedded spaces

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: task-controller

Environment

java options containing escaped or non-escaped embedded spaces.

• Assignee: Unassigned
• Reporter: John Gordon
• Created: 27/Jun/12 02:41
• Updated: 10/Mar/15 04:30

Description

TaskRunner::GetVMArgs reads getChildJavaOpts as one space-delimited string, then split is on ' ' and tries to reason on individual options from there. The problem with this approach is that java options may contain embedded spaces in many legitimate cases – this means it is reasoning on incomplete option strings and cannot do appropriate preprocessing to do things like handle escape characters or matched quotation marks.