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From Nithin Asokan <anithi...@gmail.com>
Subject Re: Spark accumulators
Date Thu, 03 Sep 2015 18:08:11 GMT
Thank you Micah. With the patch I'm able to see accumulators listed on my
Spark application.

On Thu, Sep 3, 2015 at 7:49 AM Micah Whitacre <mkwhitacre@gmail.com> wrote:

> Nithin logged https://issues.apache.org/jira/browse/CRUNCH-558 to track
> this work.  Also added a patch for the change you proposed, want to try it
> out and see if that works for you?
>
> On Thu, Sep 3, 2015 at 7:25 AM, Nithin Asokan <anithin19@gmail.com> wrote:
>
>> We are currently testing a few capabilities using Spark and one thing we
>> noticed in Spark is they don't list any user defined accumulators on web
>> UI.
>>
>> On MapReduce I would imagine counters being displayed on the job page,
>> however on a SparkPipeline I was only able to pull counter information from
>> PipelineResult#getStageResult().
>>
>> I think the reason these accumulators are not visible on web UI is
>> because crunch does not name these accumulators. Spark expects an
>> accumulator to have a name to be visible on the UI.
>>
>>
>> https://github.com/apache/crunch/blob/apache-crunch-0.13.0/crunch-spark/src/main/java/org/apache/crunch/impl/spark/SparkRuntime.java#L125-L126
>>
>>
>> https://github.com/apache/spark/blob/v1.4.1/core/src/main/scala/org/apache/spark/api/java/JavaSparkContext.scala#L616-L624
(accumulator
>> API with Name)
>>
>> I would like to know if it's possible in crunch to name these
>> accumulators so they are available in web UI. This will give us an
>> experience where users can monitor/watch accumulators from web UI to obtain
>> key information about their jobs.
>>
>> Thanks,
>> Nithin
>>
>
>

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