[HADOOP-11462] TestSocketIOWithTimeout needs change for PowerPC platform

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.2
• Fix Version/s: 2.7.0
• Component/s: test

Environment

PowerPC

• Target Version/s: 2.7.0
• Hadoop Flags: Reviewed
• Assignee: Ayappan
• Reporter: Ayappan
• Created: 06/Jan/15 09:10
• Updated: 10/Oct/15 13:04
• Resolved: 07/Jan/15 20:29

Description

TestSocketIOWithTimeout uses a block size of 4192 bytes to simulate a partial write. This seems to be a valid in x86 architecture where the default minimum blocksize is 4096.
This testcase fails in PowerPC where the default minimum block size is 65536 bytes (64KB). So for PowerPC, using a blocksize little more than 64K , say 65555(65536 + 19) holds good for this scenario.
I attached a patch here where i made it very general by introducing NativeIO.POSIX.getCacheManipulator().getOperatingSystemPageSize() to get the page size.
I tested my patch in both ppc64 and x86 linux machines.

Issue Links

• is duplicated by: HADOOP-9627 TestSocketIOTimeout should be rewritten without platform-specific assumptions that do not hold true on Windows.