Our understanding is to stop job with savepoint, all the task manager will persist their state during savepoint. If a Task Manager receives a shutdown signal while savepoint is being taken, does it complete the savepoint before shutdown ? [Ans ] Why task manager is shutdown suddenly? Are you saying about handling unpredictable shutdown while taking savepoint? In that case You can also use retained check point. In case current checkpoint has issues because of shutdown you will have previous checkpoint. So that you can use it. Now you will have 2 options, either savepoint/checkpoint. One of them will always be available. *[Followup Question]* When the processing service is shutdown say for maintenance as it is a graceful shutdown we are looking at means to avoid duplicates as exactly once message processing is guaranteed by our service . We are already starting the job based on checkpoint or savepoint whichever is the latest. When the job is started from last good checkpoint it results in duplicates.
The job manager K8S service is configured as remote job manager address in Task Manager. This service may not be available during savepoint, will this affect the communication between Task Manager and Job Manager during savepoint ? [Ans] you can go for HA right? Where you can run more than one jobmanager so that one is always service is available *[Followup Question]* As we mentioned above processing service is shut down for maintenance. -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
