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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2006/05/20 01:03:30 UTC
[jira] Commented: (HADOOP-237) Standard set of Performance Metrics
for Hadoop
[ http://issues.apache.org/jira/browse/HADOOP-237?page=comments#action_12412604 ]
Doug Cutting commented on HADOOP-237:
-------------------------------------
Here are some quick ideas for what could be interesting statistics to monitor:
Map Input:
records/second
bytes/second
Map Output Transferred to Reduce Node;
records/second
bytes/second
Reduce Output:
bytes/second
records/second
Job Tracker:
maps tasks launched
map tasks completed
reduce tasks launched
reduce tasks completed
DFS Datanode
bytes/second written
bytes/second read
blocks/second read
blocks/second written
blocks replicated
blocks removed
DFS NameNode
files created
files renamed
files listed
files opened
files removed
Is this the sort of thing you had in mind?
> Standard set of Performance Metrics for Hadoop
> ----------------------------------------------
>
> Key: HADOOP-237
> URL: http://issues.apache.org/jira/browse/HADOOP-237
> Project: Hadoop
> Type: Improvement
> Components: metrics
> Versions: 0.3
> Environment: All
> Reporter: Milind Bhandarkar
> Assignee: Milind Bhandarkar
>
> I am starting to use Hadoop's shiny new Metrics API to publish performance (and other) Metrics of running jobs and other daemons.
> Which performance metrics are people interested in seeing ? If possible, please group them according to modules, such as map-reduce, dfs, general-cluster-related etc. I will follow this process:
> 1. collect this list
> 2. assess feasibility of obtaining metric
> 3. assign context/record/metrics names
> 4. seek approval for names
> 5. instrument the code.
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