[#HADOOP-3848] TaskTracker.localizeJob calls getSystemDir for each task rather than caching it

Hadoop Common

Created: 29/Jul/08 04:44 AM Updated: 08/Jul/09 04:52 PM

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Component/s:

None

Affects Version/s:

0.18.0

Fix Version/s:

0.19.0

Time Tracking:

Not Specified

File Attachments:

	File Name	Date Attached	Attached By	Size
	HADOOP-3848_0_20080729.patch	2008-07-29 08:13 PM	Arun C Murthy	3 kB

Hadoop Flags:	Reviewed
Resolution Date:	30/Jul/08 10:16 PM

Description

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We should call it once and cache that value, I see 100k+ RPCs for large jobs...

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Repository	Revision	Date	User	Message
ASF	#681223	Wed Jul 30 22:16:45 UTC 2008	omalley	~~HADOOP-3848~~. Cache calls to getSystemDir in the TaskTracker instead of calling it for each task start. Contributed by Arun C. Murthy.
				Files Changed
				MODIFY /hadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/TaskTracker.java MODIFY /hadoop/core/trunk/CHANGES.txt