[MESOS-9737] Avoid allocating memory during fork-exec in subprocess.hpp.

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: containerization
• Labels: containerization
• Assignee: Unassigned
• Reporter: Gilbert Song
• Created: 23/Apr/19 20:45
• Updated: 23/Apr/19 20:45

Description

https://github.com/apache/mesos/blob/master/3rdparty/libprocess/src/posix/subprocess.hpp#L137

Os::strerror calls during fork-exec should be avoided, otherwise potential issues are not debuggable.
Consider using fmtlib for error code conversion