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From ravi narayanan <geekstuf...@gmail.com>
Subject Re: Quartz2 problem with AsyncDelayedDelivery
Date Wed, 02 Dec 2015 01:52:42 GMT
Hi Claus,
When you say about persistent store can you tell me how can I achieve it
using active mq.
Some link where they have implemented will probably help me.


On Tuesday, 14 July 2015, Claus Ibsen <claus.ibsen@gmail.com> wrote:

> Hi
>
> Its bad practice to have so long redelvery intervals. Its is intended
> for short time processing. If you want so long then off load the
> messages to some persistent store and process from there.
>
> Though we have a ticket in JIRA to allow Camel's error handler to
> discard those pending redeliveries in can of shutdown etc. But its not
> implemented yet.
>
> On Mon, Jul 13, 2015 at 11:18 AM, jnupponen <jussi.nupponen@gmail.com
> <javascript:;>> wrote:
> > Hi!
> >
> > I've run into a problem with camel-quartz2 (at least on 2.13.2 and
> 2.15.2)
> > cron scheduling and AsyncDelayedDelivery-option in the
> DefaultErrorHandler.
> > If I want to shutdown/restart routes during DefaultErrorHandlers
> > redeliveries quartz scheduling gets deadlocked and quietly fails all
> future
> > fire times. Without AsyncDelayedDelivery-option this problem does not
> occur.
> > I'm running my routes in bundles in Karaf 3.0.3 but the problem also
> occurs
> > when running the code on jvm (at least on 1.7) without Karaf.
> >
> > I have configured quite long redelivery times for my routes (e.g. 8
> times in
> > 2 hour interval) but at times I would need to be able to restart bundles
> > running in Karaf even when there would be redeliveries still left (e.g.
> when
> > installing new version of the bundle).
> >
> > This seems like a bug to me but what's your take on this? I've attached
> few
> > lines of log and some example route code to the end of this message.
> >
> > Best regards,
> > - Jussi
> >
> >
> >
> > Logs on org.quartz debug level show every few seconds:
> > [artzScheduler-camel-1_Worker-2] SimpleThreadPool               DEBUG
> > Waiting for thread DefaultQuartzScheduler-camel-1_Worker-2 to shut down
> >
> > and jstack shows for DefaultQuartzScheduler-camel-1_Worker-2:
> > "DefaultQuartzScheduler-camel-1_Worker-2" prio=10 tid=0x00007fd2f8201000
> > nid=0x2a16 in Object.wait() [0x00007fd3039dc000]
> >    java.lang.Thread.State: TIMED_WAITING (on object monitor)
> >         at java.lang.Object.wait(Native Method)
> >         - waiting on <0x00000007ae410420> (a java.lang.Object)
> >         at
> org.quartz.simpl.SimpleThreadPool.shutdown(SimpleThreadPool.java:371)
> >         - locked <0x00000007ae410420> (a java.lang.Object)
> >         at
> org.quartz.core.QuartzScheduler.shutdown(QuartzScheduler.java:740)
> >         at org.quartz.impl.StdScheduler.shutdown(StdScheduler.java:206)
> >         at
> >
> org.apache.camel.component.quartz2.QuartzComponent.doStop(QuartzComponent.java:352)
> >         at
> org.apache.camel.support.ServiceSupport.stop(ServiceSupport.java:102)
> >         at
> org.apache.camel.util.ServiceHelper.stopService(ServiceHelper.java:141)
> >         at
> >
> org.apache.camel.util.ServiceHelper.stopAndShutdownService(ServiceHelper.java:204)
> >         at
> >
> org.apache.camel.impl.DefaultCamelContext.shutdownServices(DefaultCamelContext.java:2827)
> >         at
> >
> org.apache.camel.impl.DefaultCamelContext.shutdownServices(DefaultCamelContext.java:2852)
> >         at
> >
> org.apache.camel.impl.DefaultCamelContext.shutdownServices(DefaultCamelContext.java:2840)
> >         at
> >
> org.apache.camel.impl.DefaultCamelContext.doStop(DefaultCamelContext.java:2704)
> >         - locked <0x00000007ad1abd88> (a
> org.apache.camel.impl.DefaultCamelContext)
> >         at
> org.apache.camel.support.ServiceSupport.stop(ServiceSupport.java:102)
> >         at
> >
> com.example.route.MyAsyncDelayedDeliveryTesting$1.process(MyAsyncDelayedDeliveryTesting.java:43)
> >         at
> >
> org.apache.camel.processor.DelegateSyncProcessor.process(DelegateSyncProcessor.java:63)
> >         at
> >
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
> >         at
> >
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
> >         at
> >
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
> >         at
> >
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
> >         at
> >
> org.apache.camel.processor.loadbalancer.QueueLoadBalancer.process(QueueLoadBalancer.java:44)
> >         at
> >
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
> >         at
> >
> org.apache.camel.processor.loadbalancer.LoadBalancerSupport.process(LoadBalancerSupport.java:87)
> >         at
> org.apache.camel.component.quartz2.CamelJob.execute(CamelJob.java:56)
> >         at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
> >         at
> >
> org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
> >         - locked <0x00000007ae539450> (a java.lang.Object)
> >
> >
> > Example of this situation looks like this:
> >
> > package com.example.route;
> >
> > import static org.apache.camel.LoggingLevel.ERROR;
> > import static org.apache.camel.LoggingLevel.WARN;
> >
> > import org.apache.camel.Exchange;
> > import org.apache.camel.Processor;
> > import org.apache.camel.builder.RouteBuilder;
> > import org.joda.time.DateTime;
> >
> > public class MyAsyncDelayedDeliveryTesting extends RouteBuilder {
> >
> >
> >         @Override
> >         public void configure() throws Exception {
> >
> >                 // Set lower timeout for convenience (default 300
> seconds).
> >                 getContext().getShutdownStrategy().setTimeout(10);
> >
> >                 // Start some route1 cron scheduled.
> >                 DateTime now = DateTime.now().plusSeconds(2);
> >                 from("quartz2://my_route_quartz_timer?cron="
> >                                 +now.getSecondOfMinute()+"+"
> >                                 +now.getMinuteOfHour()+"+"
> >                                 +now.getHourOfDay()+"+*+*+?")
> >                 .id("scheduling1")
> >                 .to("direct://my-route");
> >
> >
> >                 // Start other route that shutdowns the context thus
> shutting down the
> > route1.
> >                 // Simulate the situation where you want to restart your
> route when there
> > are still
> >                 // ongoing redelivery tasks.
> >                 now = DateTime.now().plusSeconds(4);
> >                 from("quartz2://my_shutdown_route_quartz_timer?cron="
> >                                 +now.getSecondOfMinute()+"+"
> >                                 +now.getMinuteOfHour()+"+"
> >                                 +now.getHourOfDay()+"+*+*+?")
> >                 .id("scheduling2")
> >                 .process(new Processor() {
> >
> >                         @Override
> >                         public void process(Exchange arg0) throws
> Exception {
> >                                 getContext().stop();
> >
> >                         }
> >                 });
> >
> >                 // Do some logic that causes exception and redeliveries
> for 1 minute.
> >                 from("direct://my-route")
> >                 .id("route1")
> >                 .errorHandler(defaultErrorHandler()
> >                         .maximumRedeliveries(10)
> >                         .redeliveryDelay(1000*6)
> >                         // asyncDelayedRedelivery causes the problem.
> >                         .asyncDelayedRedelivery()
> >                         .retryAttemptedLogLevel(WARN)
> >                         .retriesExhaustedLogLevel(ERROR))
> >
> >                 .process(new Processor() {
> >
> >                         @Override
> >                         public void process(Exchange exchange) throws
> Exception {
> >                                 throw new RuntimeException("Error");
> >                         }
> >                 });
> >         }
> > }
> >
> > Full example is visible here:
> > https://github.com/jnupponen/camel-quartz2-asyncDelayedDelivery-problem
> >
> >
> >
> > --
> > View this message in context:
> http://camel.465427.n5.nabble.com/Quartz2-problem-with-AsyncDelayedDelivery-tp5769210.html
> > Sent from the Camel - Users mailing list archive at Nabble.com.
>
>
>
> --
> Claus Ibsen
> -----------------
> Red Hat, Inc.
> Email: cibsen@redhat.com <javascript:;>
> Twitter: davsclaus
> Blog: http://davsclaus.com
> Author of Camel in Action: http://www.manning.com/ibsen
> hawtio: http://hawt.io/
> fabric8: http://fabric8.io/
>

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