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From "Paolo Castagna (Commented) (JIRA)" <>
Subject [jira] [Commented] (GIRAPH-77) Coordinator should expose a web interface with progress, vertex region assignments, etc.
Date Wed, 04 Apr 2012 18:47:19 GMT


Paolo Castagna commented on GIRAPH-77:

Hi Avery, I am still learning and stepping into the Apache Giraph source code (fortunately,
it isn't that big) :-)
Do you or Jakob have a favorite stack to do that? Jetty/Netty?, JAX-RS?, etc. Any specific
web framework and/or template engine? Something small, something to minimize dependencies,
... I tend to use Jetty with plain servlets and Velocity. But I am open to suggestions.

Ideally, we could/should publish JSON and render HTML pages client side (once again, I accept
suggestions on JavaScript frameworks).
I must warn you though, I am not a web|graphic designer (and I know my limits on the UI front).
But, once the basic functionalities are in place and the correct data is available, I am sure
some good web designer will fix that up.

Coming back to your question, with some guidance, yes. 
I would like to give it a shot and I have time to dedicate to Apache Giraph.
> Coordinator should expose a web interface with progress, vertex region assignments, etc.
> ----------------------------------------------------------------------------------------
>                 Key: GIRAPH-77
>                 URL:
>             Project: Giraph
>          Issue Type: New Feature
>            Reporter: Jakob Homan
> It would be nice if the coordinator worker had a web interface that showed progress,
splits, etc. during job execution. Right now it would duplicate information currently being
exposed through task status, but with the move to YARN, it will be a necessity.  It would
be great if we could do this in a modern way to avoid the screen-scraping, etc. currently
used to get information from most other Hadoop project's web interfaces.  The coordinator
could announce its address at the beginning or via status updates.

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