Re: Tiemrs and restore

Posted by Tzu-Li (Gordon) Tai on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Tiemrs-and-restore-tp19518p19525.html

Hi Alberto,

Looking at the code, I think the current behavior is that all timers (both processing time and event time) are re-registered on restore, and therefore should be triggered automatically.

So, for processing time timers, on restore all timers that were supposed to be fired while the job was down should fire automatically; for event time timers, they will be triggered once the watermark passes their timestamps.

Also looped in Aljoscha on this, in case I misunderstood anything.

Cheers,

Gordon

On 16 April 2018 at 1:20:00 AM, Alberto Mancini ([hidden email]) wrote:

Hello,

according to this stackoverflow response 

https://stackoverflow.com/questions/36306136/will-apache-flink-restore-trigger-timers-after-failure

IIUC we should expect that after a restore the timers will be not executed until a new timer is scheduled. 

I wonder if this is still true and if there is any chance of forcing the restart of the timer task.

Thank you. 

Regards,

   Alberto.