Thanks Andy and Romain. That's exactly what I was looking for. []
Leo On Thu, Oct 16, 2014 at 11:37 AM, Andy Gumbrecht <[email protected]> wrote: > Hi Leonardo, > > Never feel like a question is dumb if you're searching for an answer. > That's why we are here. > > You will find information on clustering Quartz using a JDBC JobStore here: > http://quartz-scheduler.org/generated/2.2.1/html/qs-all/# > page/Quartz_Scheduler_Documentation_Set/re-cls_cluster_configuration.html# > > Just make sure those properties are consistent across your TomEE cluster > and you'll be fine. > > The @Schedule is more tricky as you will be responsible for obtaining a > cluster wide lock from that method. > The easiest way would be to configure a DataSource to a central database > that is accessible by all the TomEE instances in the cluster - Use a simple > table with a BIT type and a DATETIME > Whichever '@Schedule' method gets the lock can then run the operation (and > unlock afterwards, so use a try/finally block) - The date can be used to > check for a lock timeout if a method fails to unlock for whatever reason (a > crash for example). > > Andy. > > > On 16/10/2014 12:27, Leonardo K. Shikida wrote: > >> Hi >> >> this doubt may sound dumb, but if I have an EJB with a scheduled task like >> >> @Schedule(dayOfWeek = "*") >> public void runMeDaily() {...} >> >> and if I am in a clustered environment, is there any way to make this job >> run in only one of the instances? (only once) >> >> of course, I can set a flag somewhere and check it before the execution of >> such task, so only the first cluster instance would run it, but I am >> curious if it's possible using some configuration magic. >> >> another doubt is: if I have 2 clustered tomee instances, how do I make >> both >> point to the same scheduler? By scheduler I mean something like >> >> Scheduler scheduler = new StdSchedulerFactory(). >> getScheduler("myScheduler"); >> >> My feeling is that my cluster will need a centralized quartz scheduler >> service somehow, so if there's some way to do that using tomee, it would >> be >> useful for me. >> >> TIA >> >> Leo >> >> > > -- > Andy Gumbrecht > https://twitter.com/AndyGeeDe > http://www.tomitribe.com > >
