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From Bill Graham <>
Subject Re: Demux trigger
Date Sat, 17 Apr 2010 04:56:16 GMT
Thanks Eric, I'm glad I emailed before writing code.

I can see how data loaders get triggered, but I don't see one that makes an
HTTP request like I'm proposing. Are you suggesting I implement a new
DataLoader that doesn't actually load data, but makes an HTTP request

On Fri, Apr 16, 2010 at 7:30 PM, Eric Yang <> wrote:

>  Hi Bill,
> This already exist in Chukwa.  Take a look in and
>, they are triggered after demux jobs.  Hence, you can
> use PostProcessManager as triggers, and configure it through
> chukwa-demux-conf.xml,  Hope this helps.
> Regards,
> Eric
> On 4/16/10 4:39 PM, "Bill Graham" <> wrote:
> Hi,
> I'd like to add a feature to the DemuxManager where you can configure an
> HTTP request to be fired after a Demux run. It would be similar to what's
> currently there for Nagios alerts, only this would be HTTP (the Nagios alert
> is a raw TCP socket call). You'd configure the host, port, (POST|GET) and
> uri for this first pass.
> Some metadata about the job would also go along for the ride. Maybe things
> like status code and job name.
> The use case is to trigger a dependent job to run elsewhere upon
> completion. The same functionality could potentially be ported to some of
> the other chukwa processor jobs if the need arose.
> Thoughts?
> thanks,
> Bill

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