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From Andrew Purtell <andrew.purt...@gmail.com>
Subject Re: Metrics in 0.96
Date Sat, 30 Jun 2012 00:31:10 GMT
Metrics2 is in both Hadoop 1 and 2. (?)

But my thing was the latter point below anyhow. 

On Jun 29, 2012, at 1:53 PM, Elliott Clark <eclark@stumbleupon.com> wrote:

> I'm excited about the new accurate histogram, however I don't think that
> we'll get it when we move to metrics2.  Any direct usage would break
> backward compat for all older hadoop installs.
> For backwards compatibility on hadoop versions we will either have to
> create a shim layer with reflection, or pull the code in.  Since we already
> have a MeticsHistogram I think pulling the code into hbase may be the right
> choice.
> 
> On Fri, Jun 29, 2012 at 1:15 PM, Andrew Purtell <apurtell@apache.org> wrote:
> 
>> On Fri, Jun 29, 2012 at 1:10 PM, Alex Baranau <alex.baranov.v@gmail.com>
>> wrote:
>>> Meanwhile I suggested taking on this one:
>>> https://issues.apache.org/jira/browse/HBASE-4050 separately/first. What
>> do
>>> you think?
>> 
>> +1
>> 
>> In related discussion, it looks to me like Stack thinks pulling in the
>> histogram accuracy improvement work via metrics2 is a good idea.
>> 
>> Independent of this something I would like to be able to do is log
>> metrics to a file as well as Ganglia concurrently, and metrics2 can do
>> that.
>> 
>> 
>> Best regards,
>> 
>>   - Andy
>> 
>> Problems worthy of attack prove their worth by hitting back. - Piet
>> Hein (via Tom White)
>> 

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