[ https://issues.apache.org/jira/browse/FLINK-4911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15605490#comment-15605490 ]
Stephan Ewen commented on FLINK-4911: ------------------------------------- I think this is different. The "syncing" part basically eventually corrects lost messages. This is for the case where no common state across JobManager and TaskManager exists at all. > Non-disruptive JobManager Failures > ---------------------------------- > > Key: FLINK-4911 > URL: https://issues.apache.org/jira/browse/FLINK-4911 > Project: Flink > Issue Type: New Feature > Components: JobManager > Reporter: Stephan Ewen > > JobManager failures can be handled in a non-disruptive way. > The basic approach is the following: > - When a JobManager fails, TaskManagers do not cancel tasks, but attempt to > reconnect to the JobManager > - On connect, the TaskManager tells the JobManager about its currently > running tasks > - A new JobManager waits for TaskManagers to connect and report a task > status. It re-constructs the ExecutionGraph state from these reports > - Tasks whose status was not reconstructed in a certain time are assumed > failed and trigger regular task recovery. > To avoid having to re-implement this for the new JobManager / TaskManager > approach in **flip-6**, I suggest to directly implement this into the > {{flip-6}} feature branch. -- This message was sent by Atlassian JIRA (v6.3.4#6332)