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From Ted Yu <yuzhih...@gmail.com>
Subject Re: deprecating (old) metrics in favor of metrics2 framework
Date Mon, 09 Jul 2012 16:35:36 GMT
Thanks for the response, Jon.

One more detail: the metrics2 classes in hadoop 1.0 and hadoop 2.0 are
different. Alex is working on a shim layer to make the difference
transparent. If we were to keep 0.96 metric (1) compatible, we would be
maintaining 2.5 metric systems.

Cheers

On Mon, Jul 9, 2012 at 9:28 AM, Jonathan Hsieh <jon@cloudera.com> wrote:

> I'm ok if we moved solely to metrics2 in 0.96 and if we deprecated in 0.94.
>
> Jon.
>
> On Sat, Jul 7, 2012 at 7:23 AM, Ted Yu <yuzhihong@gmail.com> wrote:
>
> > Hi,
> > See the following comment for background:
> >
> >
> https://issues.apache.org/jira/browse/HBASE-4050?focusedCommentId=13408679&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13408679
> >
> > metrics2 framework is in both hadoop 1.0 and hadoop 2.0
> > We would like to migrate to metrics2 framework. But maintaining two
> metrics
> > frameworks in HBase is costly and results in lower readability.
> >
> > However, if you have cluster monitoring tool that depends on (old)
> metrics
> > framework, we want to give you smooth migration experience.
> >
> > Please provide your opinions on whether (old) metrics framework should be
> > deprecated in 0.94 or in 0.96.
> >
> > Thanks
> >
>
>
>
> --
> // Jonathan Hsieh (shay)
> // Software Engineer, Cloudera
> // jon@cloudera.com
>

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