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From Patrick Wendell <>
Subject Re: JSON Endpoints
Date Tue, 20 Aug 2013 18:14:08 GMT
In 0.7.X these are actually of the format /app?format=json. In 0.8.X they
will be the format you described here "/app/json". Does that work for you?

- Patrick

On Tue, Aug 20, 2013 at 8:53 AM, Gordon Hamilton <> wrote:

> Hi guys,
> I'm new to Spark, so apologies if I've missed something obvious.
> I'm investigating the possibility of using Spark from an external UI, and
> see that Spark 0.7.0 introduced JSON endpoints into the UI which allows
> Spark's state to be queried.  I see in MasterWebUI.scala that "/json" and
> "/app/json" map to renderJson functions, but when I hit the url's from a
> browser, I see "No service available for [/json]" and "No service available
> for [/app/json]" respectively.
> Is there any documentation on how the end points work, or could someone
> point me in the right direction as to where I can find more information?
> Many thanks in advance,
> Gordon
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