I started  the whole flow by clicking the start button at the top, and I see 
green start symbol on all the components including the output port , anything 
wrong with this approach?

Thanks 
Pradeep

Sent from my iPhone

> On May 25, 2016, at 10:52 AM, Bryan Bende [via Apache NiFi Developer List] 
> <[email protected]> wrote:
> 
> Hi Pradeep, 
> 
> Is your Output Port started and running? 
> 
> That error is typically produced when the port being communicated with is 
> not running. 
> 
> -Bryan 
> 
> 
> On Wed, May 25, 2016 at 11:33 AM, pradeepbill <[hidden email]> 
> wrote: 
> 
> > Hi there, I have an issue in the site to site communication, I see data 
> > getting into the output port , but wont reach my spark application.And I 
> > see 
> > below errors, not sure what that means, please help. 
> > Please ask for any data you need. 
> > 
> > 2016-05-25 12:40:12,439 ERROR [Timer-Driven Process Thread-123] 
> > o.a.nifi.remote.StandardRemoteGroupPort 
> > RemoteGroupPort[name=Data_For_Spark,target=http://sxsss:8080/nifi] failed 
> > to 
> > communicate with http://sxsss:8080/nifi because the remote instance 
> > indicates that the port is not in a valid state 
> > 
> > 
> > Thanks 
> > Pradeep 
> > 
> > 
> > 
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