Issue HADOOP-8905

2013-05-07 Thread syates

Hi Dev list,

I am looking into implementing Add metrics for HTTP Server  
(HADOOP-8905) and would first like to seek clarification that no one  
else has covered this off to their knowledge within an existing JIRA  
or nobody has the intention to cover this off shortly.


Kind Regards
Steve



Re: Issue HADOOP-8905

2013-05-09 Thread syates

Quoting Steve Loughran :


On 8 May 2013 21:20,  wrote:


Hi Harsh,

Thanks for responding,

I would be interested in what the dev group had in mind for this and I
also have a couple of additional queries ;

I can see that a quick win for this would be to expose the existing Jetty
statistics metrics within the jetty-management api/

Existing metrics which can be exposed include without much effort include;

statsOnMs: Time in milliseconds stats have been collected for.
statsReset(): Reset statistics.
requests: Number of requests since statsReset() called.
requestsActive: Number of requests currently active.
requestsActiveMin: Minimum number of active requests since statsReset()
called.
requestsActiveMax: Maximum number of active requests since statsReset()
called.
requestsDurationAve: Average duration of request handling in milliseconds
since statsReset() called.
requestsDurationMin: Get minimum duration in milliseconds of request
handling since statsReset() called.
requestsDurationMax: Get maximum duration in milliseconds of request
handling since statsReset() called.
requestsDurationTotal: Get total duration in milliseconds of all request
handling since statsReset() called.



I have some code on a not-yet-merged fork to create duruations, build
rolling average and variance, that variance being a key one if you are
trying to serve end users; ave can hide problems. There's Duration,
DurationStats to aggregate stats, and a DurationTable to map to duration
stats by name, e.g. "POST", and whether the op passed or failed

Unless there are existing bits of this stuff lurking somewhere in the
Hadoop codebase that I haven't noticed, these could be copied into hadoop
core. Reviewing the code as it is would be welcome

https://github.com/steveloughran/hadoop-trunk/tree/stevel/HADOOP-8545-swift/hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/util



Thank you Steve, if you don't mind me taking a look at and possibly  
using your stats classes with this issue that would be great.


I will review and get back in touch

Regards
S




Re: [ANNOUNCE] New Hadoop PMC members

2013-06-10 Thread syates

Congratulations guys!

Steven Y

Quoting "Aaron T. Myers" :


Welcome aboard, folks!

Best,
Aaron


On Mon, Jun 10, 2013 at 8:38 AM, Tom White  wrote:


On behalf of the Apache Hadoop PMC, I'm pleased to announce the
addition of the following new Hadoop PMC members:

* Daryn Sharp
* Hitesh Shah
* Jonathan Eagles
* Kihwal Lee
* Luke Lu
* Steve Loughran
* Uma Maheswara Rao G

Thank you for all of your work on the project! Please join me in welcoming
them.

Cheers,
Tom









Re: confirm unsubscribe from common-dev@hadoop.apache.org

2013-08-13 Thread syates

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