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Date: Wed, 13 Nov 2013 23:24:26 -0800 (PST)
From: Babak Vahdat <babak.vahdat@swissonline.ch>
To: users@camel.apache.org
Message-ID: <1384413866172-5743238.post@n5.nabble.com>
In-Reply-To: <1384404678529-5743232.post@n5.nabble.com>
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Subject: Re: Camel quartz misfires and route not getting run / triggered
 after exception:ObjectAlreadyExistsException
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Hi

As you've already reported by your first post, only increasing the number of
running VM's makes this exception to happen (from 2 to 7). This CAN be a
hint for a race-condition somewhere. There was a similar problem being
reported while ago:

https://issues.apache.org/jira/browse/CAMEL-6686

The only reason why we could fix that was because we could reproduce the
same exception inside a test, which is now added to the code base of this
Camel module. In your case I was NOT able to do the same. If you could
somehow provide a test or a sample project then we could dig into this to
see if we can find the root cause of the problem and probably fix it.
There's also the following Camel test module you could make use of for this:

http://camel.apache.org/blueprint-testing.html

Babak


lakshmi.prashant wrote
> Hi,
> 
>    Can you kindly explain why the route starts failing after running for
> sometime..
>    Why is the doAddJob() getting called, after few runs of a schedule have
> already tun, as reported in the exception? 
>    The race condition can happen only at the start of the route, while
> scheduling the quartz job. But it gets reported after few runs in the
> below exception trace:
<http://camel.465427.n5.nabble.com/file/n5743232/Route_Stoping_After_fewruns.png> 
> 
> Thanks,
> Lakshmi
> 
> Exception Trace:
> ERROR#org.apache.camel.blueprint.BlueprintCamelContext##anonymous#Blueprint
> Extender: 3##avatarcl#aq4appaq4t#iflmap#null#null#
> Error occurred during starting Camel: CamelContext(context4) due 
> Unable to store Trigger with name: 'schedule3' and group: 'Camel', because
> one already exists with this
> identification.org.quartz.ObjectAlreadyExistsException: 
> Unable to store Trigger with name: 'schedule3' and group: 'Camel', because
> one already exists with this identification. at
> org.quartz.impl.jdbcjobstore.JobStoreSupport.storeTrigger(JobStoreSupport.java:1200) 
> at
> org.quartz.impl.jdbcjobstore.JobStoreSupport$3.execute(JobStoreSupport.java:1072)
> at
> org.quartz.impl.jdbcjobstore.JobStoreSupport$40.execute(JobStoreSupport.java:3716) 
> at
> org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3788)
> at
> org.quartz.impl.jdbcjobstore.JobStoreTX.executeInLock(JobStoreTX.java:90) 
> at
> org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInLock(JobStoreSupport.java:3712) 
> at
> org.quartz.impl.jdbcjobstore.JobStoreSupport.storeJobAndTrigger(JobStoreSupport.java:1059)
> at org.quartz.core.QuartzScheduler.scheduleJob(QuartzScheduler.java:822) 
> at org.quartz.impl.StdScheduler.scheduleJob(StdScheduler.java:243) at
> org.apache.camel.component.quartz.QuartzComponent.doAddJob(QuartzComponent.java:232) 
> at
> org.apache.camel.component.quartz.QuartzComponent.addJob(QuartzComponent.java:222)
> at
> org.apache.camel.component.quartz.QuartzEndpoint.addTrigger(QuartzEndpoint.java:81) 
> at
> org.apache.camel.component.quartz.QuartzEndpoint.consumerStarted(QuartzEndpoint.java:213)
> at
> org.apache.camel.component.quartz.QuartzConsumer.doStart(QuartzConsumer.java:39) 
> at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
> at
> org.apache.camel.impl.DefaultCamelContext.startService(DefaultCamelContext.java:1819) 
> at
> org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRouteConsumers(DefaultCamelContext.java:2113) 
> at
> org.apache.camel.impl.DefaultCamelContext.doStartRouteConsumers(DefaultCamelContext.java:2049) 
> at
> org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:1979) 
> at
> org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:1758) 
> at
> org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1633) 
> at
> org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1500)


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