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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 19:28:29 GMT
If I don't get objection by Friday the 13th @ mid night (PST), I will
create a JIRA that marks HBase metric classes that depend on
org.apache.hadoop.metrics.* deprecated.

Thanks

On Mon, Jul 9, 2012 at 9:35 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> 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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