[MAPREDUCE-6651] MCollectorOutputHandler.cc makes misaligned accesses, coredumps ensue

• Type: Sub-task
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.7.2
• Component/s: client

Environment

Any platform with alignment constraints

• Assignee: Alan Burlison
• Reporter: Alan Burlison
• Created: 15/Mar/16 14:22
• Updated: 16/Mar/16 13:15

Description

MCollectorOutputHandler.cc casts a misaligned byte pointer to a KVBufferWithParititionId, which causes coredumps on any platform with alignment constraints, such as SPARC. The misaligned structure needs to be copied into a local, aligned structure and the data referenced from there.