Hi, Maybe region restart strategy can help. It restarts minimum required tasks. Note that it’s recommended to use only after 1.9 release, see [1], unless you’re running a stateless job.
[1] https://issues.apache.org/jira/browse/FLINK-10712 <https://issues.apache.org/jira/browse/FLINK-10712> Best, Paul Lam > 在 2019年7月12日，03:38，Aaron Levin <aaronle...@stripe.com> 写道： > > Hello, > > Is there a way to gracefully terminate a Task Manager beyond just killing it > (this seems to be what `./taskmanager.sh stop` does)? Specifically I'm > interested in a way to replace a Task Manager that has currently-running > tasks. It would be great if it was possible to terminate a Task Manager > without restarting the job, though I'm not sure if this is possible. > > Context: at my work we regularly cycle our hosts for maintenance and > security. Each time we do this we stop the task manager running on the host > being cycled. This causes the entire job to restart, resulting in downtime > for the job. I'd love to decrease this downtime if at all possible. > > Thanks! Any insight is appreciated! > > Best, > > Aaron Levin
