Makes sense.

Thanks,
Hari

On Tue, Nov 11, 2014 at 9:51 PM, Ashish <paliwalash...@gmail.com> wrote:

> That's what I had in mind, just need to figure out how to do it with
> CodaHale. Want to avoid CodaHale MetricRegistry class floating around
> in code. 1st step would be to migrate to CodaHale, I am yet to figure
> out how managing the Reporter part. Let me try to put a patch
> together.
> On Wed, Nov 12, 2014 at 9:29 AM, Hari Shreedharan
> <hshreedha...@cloudera.com> wrote:
>> Currently the metrics exposed via Sources/sinks/channels are hardcoded. We 
>> could add a method to add custom metrics (I think it is already there in 
>> MonitoredCounterGroup, just not in the *Counter classes).
>>
>>
>> Thanks,
>> Hari
>>
>> On Tue, Nov 11, 2014 at 6:34 PM, Ashish <paliwalash...@gmail.com> wrote:
>>
>>> I was just playing around so piggy-backed it. The changes have to be
>>> within MonitoredCounterGroup and its sub-classes, as its used across
>>> the implementations. Let me raise a JIRA for this.
>>> One thing that I would like to have in future is to allow
>>> Sinks/Channels/Sources to be able to have custom counters/Meters and
>>> be available to have those Metrics available via the framework. I
>>> think CounterGroup was created for the same purpose.
>>> Let me create a JIRA for this and work on it.
>>> thanks
>>> ashish
>>> On Wed, Nov 12, 2014 at 1:11 AM, Hari Shreedharan
>>> <hshreedha...@cloudera.com> wrote:
>>>> I think it is best to replace the current system rather than having 
>>>> multiple metrics systems. We should implement it such that it is 
>>>> transparent to user code, and the changes only go into 
>>>> MonitoredCounterGroup (the CounterGroup class is obsolete - dont bother).
>>>>
>>>>
>>>> Thanks,
>>>> Hari
>>>>
>>>> On Mon, Nov 10, 2014 at 5:36 PM, Ashish <paliwalash...@gmail.com> wrote:
>>>>
>>>>> Codahale does have lot more features like the rate/sec one, which is
>>>>> most needed metrics. It provides a lot of reporters out of box
>>>>> (Nagios, HTTP, Ganglia, Graphite, Console etc) so we just need to
>>>>> enable it, rather than writing custom components.
>>>>> As of now we have to hide it within MonitoredCounterGroup and its
>>>>> sub-classes, that's what I did for running it. It was running parallel
>>>>> to existing system. Let me work more on it and see if I can simplify
>>>>> the same.
>>>>> On Tue, Nov 11, 2014 at 4:50 AM, Hari Shreedharan
>>>>> <hshreedha...@cloudera.com> wrote:
>>>>>> Is it easier to use than the current one and/or does it give better 
>>>>>> performance? You’d need to support the current metrics API 
>>>>>> (MonitoredCounterGroup, SourceCounter, SinkCounter, ChannelCounter etc).
>>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>> Hari
>>>>>>
>>>>>> On Sat, Nov 8, 2014 at 8:21 PM, Ashish <paliwalash...@gmail.com> wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>> Have hacked a bit into our existing instrumentation package and piggy
>>>>>>> backed cohahale metrics package. Here is one sample for Spooled
>>>>>>> Directory source (with instrumentation only for Source and Channel ),
>>>>>>> using console reporter
>>>>>>> -- Gauges 
>>>>>>> ----------------------------------------------------------------------
>>>>>>> org.apache.flume.instrumentation.ChannelCounter.channel.current.size
>>>>>>>              value = 200
>>>>>>> org.apache.flume.instrumentation.ChannelCounter.channel.fill.percentage
>>>>>>>              value = 2.0
>>>>>>> org.apache.flume.instrumentation.SourceCounter.src.open-connection.count
>>>>>>>              value = 0
>>>>>>> -- Counters 
>>>>>>> --------------------------------------------------------------------
>>>>>>> org.apache.flume.instrumentation.ChannelCounter.channel.event.put.attempt
>>>>>>>              count = 1138800
>>>>>>> org.apache.flume.instrumentation.ChannelCounter.channel.event.put.success
>>>>>>>              count = 1138800
>>>>>>> org.apache.flume.instrumentation.ChannelCounter.channel.event.take.attempt
>>>>>>>              count = 1138601
>>>>>>> org.apache.flume.instrumentation.ChannelCounter.channel.event.take.success
>>>>>>>              count = 1138600
>>>>>>> org.apache.flume.instrumentation.SourceCounter.src.events.accepted
>>>>>>>              count = 1138800
>>>>>>> org.apache.flume.instrumentation.SourceCounter.src.events.received
>>>>>>>              count = 1138800
>>>>>>> src.append-batch.accepted
>>>>>>>              count = 11388
>>>>>>> src.append-batch.received
>>>>>>>              count = 11388
>>>>>>> src.append.accepted
>>>>>>>              count = 0
>>>>>>> src.append.received
>>>>>>>              count = 0
>>>>>>> -- Meters 
>>>>>>> ----------------------------------------------------------------------
>>>>>>> eventAcceptedMeter
>>>>>>>              count = 1138800
>>>>>>>          mean rate = 106478.56 events/second
>>>>>>>      1-minute rate = 93420.18 events/second
>>>>>>>      5-minute rate = 91389.24 events/second
>>>>>>>     15-minute rate = 91037.40 events/second
>>>>>>> eventReceivedMeter
>>>>>>>              count = 1138800
>>>>>>>          mean rate = 106462.14 events/second
>>>>>>>      1-minute rate = 93420.18 events/second
>>>>>>>      5-minute rate = 91389.24 events/second
>>>>>>>     15-minute rate = 91037.40 events/second
>>>>>>> If there is interest in the community, can raise a jira and continue
>>>>>>> to work on it.
>>>>>>> --
>>>>>>> thanks
>>>>>>> ashish
>>>>>>> Blog: http://www.ashishpaliwal.com/blog
>>>>>>> My Photo Galleries: http://www.pbase.com/ashishpaliwal
>>>>> --
>>>>> thanks
>>>>> ashish
>>>>> Blog: http://www.ashishpaliwal.com/blog
>>>>> My Photo Galleries: http://www.pbase.com/ashishpaliwal
>>> --
>>> thanks
>>> ashish
>>> Blog: http://www.ashishpaliwal.com/blog
>>> My Photo Galleries: http://www.pbase.com/ashishpaliwal
> -- 
> thanks
> ashish
> Blog: http://www.ashishpaliwal.com/blog
> My Photo Galleries: http://www.pbase.com/ashishpaliwal

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