Till Rohrmann created FLINK-4424: ------------------------------------ Summary: Make network environment start-up/shutdown independent of JobManager association Key: FLINK-4424 URL: https://issues.apache.org/jira/browse/FLINK-4424 Project: Flink Issue Type: Sub-task Components: Network, TaskManager Reporter: Till Rohrmann
Currently, the {{TaskManager}} starts the netty network server only after it has registered with a {{JobManager}}. Upon loss of connection to the {{JobManager}} the {{NetworkEnvironment}} is closed. The start-up and shutdown of the network server should be independent of the {{JobManager}} connection, especially if we assume that a TM can be associated with multiple JobManagers in the future (FLIP-6). Starting the network server only once when the {{TaskManager}} is started has the advantage that we don't have to preconfigure the {{TaskManager's}} data port. Furthermore we don't risk to get stuck when disassociating from a {{JobManager}} because the start-up and shutdown of a {{NetworkEnvironment}} can cause problems (because it has to reserve/free resources). -- This message was sent by Atlassian JIRA (v6.3.4#6332)