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From "Ganelin, Ilya" <Ilya.Gane...@capitalone.com>
Subject Re: Creating a common metrics server for internal monitoring
Date Tue, 17 Nov 2015 23:48:09 GMT
Specifically, I¹m interested in being able to track latencies for
individual tuples. For example, as they move through the BufferServer or
the CircularBuffer.

On 11/17/15, 3:12 PM, "David Yan" <david@datatorrent.com> wrote:

>Hi Ilya,
>
>The AutoMetric interface is mostly designed for application-specific
>metrics within an operator -- things like how many frauds are detected, or
>the dollar amount processed.
>
>We do have BufferServer bytes and queue tuple count (a.k.a. queue size) as
>system metrics. If you have specific metrics that pertain to BufferServer
>and CircularBuffer that you're interested in, please state them.  We
>should
>probably add them to system metrics since it's probably useful in general.
>
>David
>
>On Tue, Nov 17, 2015 at 2:58 PM, Pramod Immaneni <pramod@datatorrent.com>
>wrote:
>
>> Some of them are available in system stats like port queue size and are
>> exposed via REST and to a stats listener that you can register via the
>>API.
>> Some of the others you mentioned can be added.
>>
>> On Tue, Nov 17, 2015 at 2:52 PM, Ganelin, Ilya <
>> Ilya.Ganelin@capitalone.com>
>> wrote:
>>
>> > Hi, all ­ presently Apex supports surfacing metrics via the
>>AutoMetrics
>> > interface, documented here:
>> > http://docs.datatorrent.com/autometrics/
>> >
>> > However, this only provides utility to monitor operators. I would
>>like to
>> > provide a more general latency suite - fFor example, I would like to
>> > instrument metrics around the BufferServer or the CircularQueue. Not
>> > everything in Apex is an operator, and there are other components of
>>the
>> > system around which we may want explicit measurements or metrics. Is
>>this
>> > something that could exist? I know other projects like Spark have
>>similar
>> > efforts, although they are equally underdeveloped :)
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>>

________________________________________________________

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