[MAPREDUCE-1304] Add counters for task time spent in GC - ASF JIRA

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Details

Type: New Feature
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.21.0
Component/s: task
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Description

It's easy to grab the number of millis spent in GC (see JvmMetrics for example). Exposing these as task counters would be handy - occasionally I've seen user jobs where long GC pauses cause big "unexplainable" performance problems, and a large counter would make it obvious to the user what's going on.

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MAPREDUCE-1304.patch
27/Feb/10 00:06
7 kB
Aaron Kimball
MAPREDUCE-1304.3.patch
27/Mar/10 02:06
9 kB
Aaron Kimball
MAPREDUCE-1304.2.patch
27/Feb/10 02:08
7 kB
Aaron Kimball

Issue Links

relates to

MAPREDUCE-901 Move Framework Counters into a TaskMetric structure

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Assignee:: Aaron Kimball

Reporter:: Todd Lipcon

Votes:: 0 Vote for this issue

Watchers:: 8 Start watching this issue

Dates

Created:: 16/Dec/09 21:43

Updated:: 24/Aug/10 21:19

Resolved:: 25/Apr/10 02:40