Hi Shubhendu,
----- Original Message -----
> From: "Shubhendu Tripathi" <shtri...@redhat.com>
> To: devel@ovirt.org
> Sent: Monday, November 24, 2014 8:58:34 AM
> Subject: [ovirt-devel] Certain questions about Quartz based scheduling in
> oVirt
>
> Hi All,
>
> We are in a requirement where we need to schedule jobs at certain time
> interval, hourly, daily, weekly and monthly (i.e. repetitive and cron
> kind of scheduling).
> I was trying to understand quartz based scheduling mechanism in oVirt to
> achieve the scenarios.
>
> Have some basic questions regarding the same -
> 1. Is there is mechanism to persist the scheduling data in oVirt ?
In ovirt we do not persist the jobs. The application reschedule the jobs when
it starts
and programmatically triggers jobs when required.
On packaging/services/ovirt-engine/ovirt-engine.xml.in we specify the job store
configuration
as RAMJobStore, which is a volatile:
<property name="org.quartz.jobStore.class"
value="org.quartz.simpl.RAMJobStore"/>
You may select other implementation. See:
http://quartz-scheduler.org/api/2.2.0/org/quartz/spi/JobStore.html
> 2. How to tackle edit and rescheduling of jobs ?
>
You can have a look at org.ovirt.engine.core.utils.timer.SchedulerUtil
interface in
the 'scheduler' project which provides that functionality, and the related
classes.
But if not special requirements, i guess the shipped quartz implementation
should be
enough:
http://quartz-scheduler.org/documentation/quartz-2.x/tutorials/tutorial-lesson-05
> Kindly guide on how to achieve these.
>
> Thanks and Regards,
> Shubhendu
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