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From rayman preet <rayman7...@gmail.com>
Subject Re: Tracing the Samza+YARN startup process
Date Wed, 22 May 2019 23:30:04 GMT
Hi Malcolm,

This figure (attached) gives an overview of the flow. Is
this something you were looking for?

Also, by "don't fully start up" do you mean that
applications are missing some containers (but the ApplicationMaster is
running)?
Or the application is missing entirely.

--
thanks
rayman
[image: Samza Job Launch Sequence.png]

On Tue, May 21, 2019 at 3:58 PM Malcolm McFarland <mmcfarland@cavulus.com>
wrote:

> Hey Folks,
>
> I'm still trying to pin down why these applications are sometimes not
> starting. Everything looks fine in the YARN web UI and in the
> immediately available logs, but the applications don't always fully
> start up. Does anybody have a rundown about how to trace the Samza
> startup process on a YARN cluster, from Accepted status, to
> localization, to the application master startup, to the actual
> application's startup?
>
> Cheers,
> Malcolm
>
> --
> Malcolm McFarland
> Cavulus
>
>
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-- 
thanks
rayman

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