How to ensure only one job fires at a time in Quartz.NET? -


i have windows service uses quartz.net execute jobs scheduled. want pick single job @ time. however, seeing behavior indicates has picked 2 jobs @ once.

there 2 log files (the regular 1 , 1 automatically generated when regular 1 in use) jobs start @ exact same time. can see both jobs executing in qrtz_fired_triggers table, 1 has correct instance id, odd.

i have configured quartz use single thread. not how tell pick single job @ time?

here quartz.config file sensitive values hashed out:

quartz.scheduler.instancename = defaultquartzjobscheduler quartz.scheduler.instanceid = ###################### quartz.jobstore.clustered = true quartz.jobstore.clustercheckininterval = 15000  quartz.threadpool.type = quartz.simpl.simplethreadpool, quartz quartz.jobstore.useproperties = false quartz.jobstore.type = quartz.impl.adojobstore.jobstoretx, quartz quartz.jobstore.driverdelegatetype = quartz.impl.adojobstore.oracledelegate, quartz quartz.jobstore.tableprefix = qrtz_ quartz.jobstore.lockhandler.type = quartz.impl.adojobstore.updatelockrowsemaphore, quartz quartz.jobstore.misfirethreshold = 60000 quartz.jobstore.datasource = default quartz.datasource.default.connectionstring = ###################### quartz.datasource.default.provider = oracleclient-20  #  customizable values per node  quartz.threadpool.threadcount = 1 quartz.threadpool.threadpriority = normal

make threadcount = 1.

<add key="quartz.threadpool.threadcount" value="1"/> <add key="quartz.threadpool.threadpriority" value="normal"/>

(as have done)

make each of jobs "stateful"

[persistjobdataafterexecution] [disallowconcurrentexecution] public class statefuldoesnotrunconcurrentlyjob : ijob        /* : istatefuljob */ /* error  43  'quartz.istatefuljob' obsolete: 'use disallowconcurrentexecutionattribute and/or persistjobdataafterexecutionattribute annotations instead. */ { }

i've left in name of ~~older~~ version of how (namely, "istatefuljob") , error message generated when code outdated "istatefuljob" interface. error message gives hint.

basically, if have 1 thread , every job marked "disallowconcurrentexecution", should result in 1 job @ given time..running in "serial mode".


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