Hi, We are using Flink 1.13.2 with Kubernetes HA solution provided by flink. We have created a deployment for JobManager and TaskManager with option to deploy multiple replicas and the same is bundled in a single helm chart. So we have below queries regarding Flink upgrade strategies, kindly help us to answer below queries:
1) What upgrade strategies are supported by Flink (RollingUpdate/Recreate) and which one is recommended for production use? 2) During Flink upgrade from version A to version B, if we are using rollingUpdate then at some point of time multiple versions of Flink JMs & TMs might be running so does that can cause any corruption/failure for running Jobs ? 3) During Flink upgrade from version A to version B, If we use recreate then at some point of time if all JMs gets updated to a new version and TMs are still updating which means TMs are running with different versions then will this cause any corruption/failure for running Jobs? Regards, Amit Bhatia
