Thank you Joe. Can I offer to create a ticket? I've not yet done that for Apache NiFi but would be happy to do that if you would like. If so, can you tell me the right process for submitting one for consideration, the link to visit to do that, and whether I as a member of the users group have the privilege to submit a suggested ticket?
Cheers, Jim On Thu, Feb 16, 2017 at 11:24 PM, Joe Witt <[email protected]> wrote: > Jim, > > This is a great question and good point. For controller services it > would be really valuable to have a monitoring function exposed in some > standard manner via their REST API. I don't believe we have any > generic support for this yet nor do I think the StandardHttpContentMap > does this. It would be a great thing to create a JIRA for. > > Thanks > Joe > > On Thu, Feb 16, 2017 at 6:48 AM, James McMahon <[email protected]> > wrote: > > Hello. I have a suite of applications that use Http POSTs to push > content to > > NiFi "on [their] demand". My HandleHttpRequest processor works for the > most > > part, employing an SSL Context Service and a StandardHttpContextMap. > > > > Yesterday apps were unable to post. We are in development and test, and > so I > > had been sending the "success" output from HandleHttpRequest not only to > my > > main workflow stream, but also to a temporary holding queue feeding into > a > > MonitorActivity processor. In other words I was accumulating all the > input I > > received so that I could review it using list queue if required. > > > > Bottom line: I started to get errors because HandleHttpRequest could not > > accept requests. I suspect it was due to reaching the maximum threshold > for > > my StandardHttpContextMap. With all those incoming requests queued up in > > that temporary queue, I believe I was not releasing these Http contexts > from > > the map. > > > > Is there a means to monitor the capacity usage for > StandardHttpContextMap? > > I'd like to devise some means to throw a log alert if and when > > StandardHttpContextMap gets to within 75% of my Maximum Outstanding > Requests > > associated with the context map. > > > > Thank you in advance for your thoughts. -Jim >
