Hi,

So for past 2-3 days i have been looking for documentation which elaborates how 
flink takes care of restarting the data streaming job. I know all the restart 
and failover strategies but wanted to know how different components (Job 
Manager, Task Manager etc) play a role while restarting the flink data 
streaming job. 

I am asking this because recently in production.. when i restarted a task 
manger, all the jobs running on it, instead of getting restarted, disappeared. 
Within flink UI, couldn't tack those jobs in completed jobs as well. Logs also 
couldnt provide me with good enough information.

Also if anyone can tell me what is the role of /tmp/executionGraphStore  folder 
in Job Manager machine.

Thanks


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