On Fri, Feb 2, 2024 at 11:17 AM Maarten Donderwinkel <maarten.donderwin...@aiden.eu.invalid> wrote:
> We run a couple of Camel applications that utilize a K8S Cronjob. > > > > For our case we can auto shutdown the application with the property > camel.main.durationMaxIdleSeconds. > > It’ll shutdown if the application is idle for a number of seconds. > > Your use-case and desired ‘trigger’ might be different of course, but > there are more options to auto shutdown > > > > See https://camel.apache.org/components/4.0.x/others/main.html for more > information on that property and how to set it. > Thanks Maarten, it could be an interesting approach. Wasn't aware of those configuration. I'll experiment with them as well. > > > Met vriendelijke groet | Kind Regards | Meilleures salutations | Mit > freundlichen Grüβen, > > Maarten Donderwinkel > > Aiden Locatie Den Bosch [image: Email] maarten.donderwin...@aiden.eu > www.aiden.eu > <https://www.aiden.eu/?utm_source=aidenemailsignature&utm_medium=email> Het > Zuiderkruis 61 > 5215 MV 's-Hertogenbosch > +31 (0) 88 060 5111 > > +31 (0) 6 8683 0832 > > [image: facebook.png] <https://www.facebook.com/weareAiden.eu> [image: > linkedin.png] <https://www.linkedin.com/company/aiden-eu> [image: Twitter] > <https://twitter.com/weareAiden> [image: youtube] > <https://www.youtube.com/channel/UCcLccRfot11DrZLNhlAS8fA> > <https://www.youtube.com/channel/UCcLccRfot11DrZLNhlAS8fA> > <https://www.aiden.eu/> > <https://www.aiden.eu/?utm_source=aidenemailsignature&utm_medium=email> > <https://www.twitter.com/user_name_here> > <https://www.youtube.com/user/user_name_here> > > > *From: *Pasquale Congiusti <pasquale.congiu...@gmail.com> > *Date: *Friday, 2 February 2024 at 11:08 > *To: *dev <dev@camel.apache.org>, us...@camel.apache.org < > us...@camel.apache.org> > *Subject: *How to make Camel cloud cron "friendly" > > Hi folks, > I'm working lately on some experiment to run a generic Camel application on > a Kubernetes CronJob. The behavior expected by the cluster is that, once > the job workload is over, the application would exit with either a success > or error code. As we're running a Camel application, although the route may > have finished, the entire application will continue to run until a forceful > shutdown. I am not sure it exists any other way, so I found my way to > workaround this behavior by following the approach in [1], which would ends > up in something like the following code: > > public class TestCron extends RouteBuilder { > @Override > public void configure() throws Exception { > from("timer:cron?delay=0&period=1&repeatCount=1") > // Simulate heavylift work > .delay(10000) > .to("log:info") > .log("DONE!") > .process(new Processor() { > Thread stop; > @Override > public void process(final Exchange exchange) throws Exception { > if (stop == null) { > stop = new Thread() { > @Override > public void run() { > try { > exchange.getContext().stop(); > } catch (Exception e) { > // ignore > } > } > }; > } > // start the thread that stops the context > stop.start(); > } > }); > } > } > > However, this workaround feels a bit too hacky as it involves playing with > Camel Context directly. It is also impossible to reproduce easily in non > Java DSL, like in YAML. I am wondering if we can think on having a higher > level EIP such we have with "stop", something like "shutdown" which > behavior may be similar of what described above, taking care to gracefully > shutdown the application when it is invoked. This one may do some finer > grained controls to verify that the exchanges has really completed or there > are no others routes running or any other low level check that would > perform a controlled shutdown. How does it sound? or which would be any > alternative to make Camel more cloud cron "friendly"? > > Regards, > Pasquale. > > [1] > > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcamel.apache.org%2Fmanual%2Ffaq%2Fhow-can-i-stop-a-route-from-a-route.html%23HowcanIstoparoutefromaroute-Usingathreadtostoparoutefromaroute&data=05%7C02%7Cmaarten.donderwinkel%40aiden.eu%7C9549aaebd583438beb6608dc23d6d5dc%7Cb9d83e0e2e894f4e9c2bbe3df185e1af%7C0%7C0%7C638424652819450381%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=Gbf%2F8vAkywA7et%2FBR12uqs1OqTNFeP7Saaqm6jJHCzg%3D&reserved=0 > <https://camel.apache.org/manual/faq/how-can-i-stop-a-route-from-a-route.html#HowcanIstoparoutefromaroute-Usingathreadtostoparoutefromaroute> >
