Add some more information to Gyula's comment. For application mode without checkpoint, you do not need to activate the HA since it will not take any effect and the Flink job will be submitted again after the JobManager restarted. Because the job submission happens on the JobManager side.
For session mode without checkpoint, you still need to activate the HA. If not, all the running jobs will be lost after JobManager restarted. Because the job submission happens on the client side and job graphs are stored by HA. Best, Yang Gyula Fóra <gyula.f...@gmail.com> 于2022年10月14日周五 04:27写道： > Without HA, if the jobmanager goes down, job information is lost so the > job won’t be restarted after the JM comes back up. > > Gyula > > On Thu, 13 Oct 2022 at 19:07, marco andreas <marcoandreas...@gmail.com> > wrote: > >> >> >> Hello, >> >> Can someone explain to me what is the point of using HA when deploying an >> application cluster with a single JM and the checkpoints are not activated. >> >> AFAK when the pod of the JM goes down kubernetes will restart it anyway >> so we don't need to activate the HA in this case. >> >> Maybe there's something else that I am missing here, so if someone could >> give me an explanation it would be great . >> >> Sincerely, >> >
