Nrthugu

I've searched through all of the related Quartz Scheduler questions here and haven't found anyone else having an issue like the one I'm seeing. This question is not about issues with schedules not running correctly or jobs not being triggered which is what I've mostly found. I seem to be entering into a hung state when I simply try to instantiate a StdSchedulerFactory object.

if(_logger.isInfoEnabled())

    _logger.info("made it here 01");



SchedulerFactory schedFact = new StdSchedulerFactory();



if(_logger.isInfoEnabled())

    _logger.info("made it here 02");



_sched = schedFact.getScheduler();

This block of code is inside of a synchronized block that also checks to see if _sched (which is declared as org.quartz.Scheduler) is currently running. If we enter the synchronized block and find that a Scheduler is currently running, we shut it down.

The code seems to be hanging on the actual instantiation of the StdSchedulerFactor() object. "made it here 01" prints out, however, "made it here 02" never prints out.

This code works fine on my local machine and on a lab environment. When deployed to a client server, it fails.

Couple of notes

• This code is inside a try/catch block. No error is ever thrown


• I'm using quartz 2.2.1 (we have to stay on jdk 1.6)


• The deployed code is working fine on several environments, just failing on one


• Again, no errors reported (I was expecting to maybe find a ClassDefNotFound error somewhere in my logs...but nothing)

On my local environment I get the following printed out in my catalina.log file.

[2018-11-11 07:23:07,456] [INFO] [QuartzScheduler.java:694] [Scheduler 

DefaultQuartzScheduler_$_NON_CLUSTERED shutting down.]



[2018-11-11 07:23:07,457] [INFO] [QuartzScheduler.java:613] [Scheduler 

DefaultQuartzScheduler_$_NON_CLUSTERED paused.]



[2018-11-11 07:23:07,457] [INFO] [QuartzScheduler.java:771] [Scheduler 

DefaultQuartzScheduler_$_NON_CLUSTERED shutdown complete.]



[2018-11-11 07:23:07,459] [INFO] [StdSchedulerFactory.java:1184] [Using 

default implementation for ThreadExecutor]



[2018-11-11 07:23:07,459] [INFO] [SimpleThreadPool.java:268] [Job execution 

threads will use class loader of thread: pool-6-thread-1]



[2018-11-11 07:23:07,462] [INFO] [SchedulerSignalerImpl.java:61] 

[Initialized Scheduler Signaller of type: class 

org.quartz.core.SchedulerSignalerImpl]



[2018-11-11 07:23:07,462] [INFO] [QuartzScheduler.java:240] [Quartz 

Scheduler v.2.2.1 created.]



[2018-11-11 07:23:07,463] [INFO] [RAMJobStore.java:155] [RAMJobStore 

initialized.]



[2018-11-11 07:23:07,463] [INFO] [QuartzScheduler.java:305] [Scheduler meta- 

   data: Quartz Scheduler (v2.2.1) 'DefaultQuartzScheduler' with instanceId 

'NON_CLUSTERED'

  Scheduler class: 'org.quartz.core.QuartzScheduler' - running locally.

  NOT STARTED.

  Currently in standby mode.

  Number of jobs executed: 0

  Using thread pool 'org.quartz.simpl.SimpleThreadPool' - with 10 threads.

  Using job-store 'org.quartz.simpl.RAMJobStore' - which does not support 

persistence. and is not clustered.

]



[2018-11-11 07:23:07,463] [INFO] [StdSchedulerFactory.java:1339] [Quartz 

scheduler 'DefaultQuartzScheduler' initialized from default resource file in 

Quartz package: 'quartz.properties']



[2018-11-11 07:23:07,463] [INFO] [StdSchedulerFactory.java:1343] [Quartz 

scheduler version: 2.2.1]

Again, that printout is from my local environment that is working. On the client environment though, that never gets printed. No errors are ever printed though either.

I can include more of the overall code if needed, however, since this code works on every other environment I've tried it on, I'm wondering if there is some environment setting that I may need to look for?