[jira] [Created] (FLINK-26773) ResourceManager leader election can a reconnect while shutting down the JobMaster

["Matthias Pohl (Jira)" <ji...@apache.org>]

Matthias Pohl created FLINK-26773:
-------------------------------------

             Summary: ResourceManager leader election can a reconnect while shutting down the JobMaster
                 Key: FLINK-26773
                 URL: https://issues.apache.org/jira/browse/FLINK-26773
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
    Affects Versions: 1.14.4, 1.15.0, 1.16.0
            Reporter: Matthias Pohl


There's a race condition happening with the {{ResourceManager}} leader election in the {{JobMaster}} while shutting it down. The {{JobMaster}} calls {{dissolveResourceManagerConnection}} while shutting down itself trying to disconnect itself from the {{ResourceManager}} (see [JobMaster:1180|https://github.com/apache/flink/blob/fdb80108a3c0e4fb12dbc3f89ecb2327d97deebf/flink-runtime/src/main/java/org/apache/flink/runtime/jobmaster/JobMaster.java#L1180]).

This closes the RM connection to the {{JobMaster}} from the {{ResourceManager}}'s side (see [ResourceManager:979|https://github.com/apache/flink/blob/9055279d0286f4374694325250a45dc1c60301a7/flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/ResourceManager.java#L979]. The {{JobMaster}} tries to reconnect to the {{ResourceManager}} leader if there's still an address stored for that leader (which is the case during shutdown; see [JobMaster:790|https://github.com/apache/flink/blob/fdb80108a3c0e4fb12dbc3f89ecb2327d97deebf/flink-runtime/src/main/java/org/apache/flink/runtime/jobmaster/JobMaster.java#L790]).

The {{JobMaster}} shouldn't try to reconnect after it has already freed it's requirements as part of the shutdown.



--
This message was sent by Atlassian Jira
(v8.20.1#820001)