Marco P. created HELIX-625:
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Summary: Provide mechanism to react to disconnection due to flapping
Key: HELIX-625
URL: https://issues.apache.org/jira/browse/HELIX-625
Project: Apache Helix
Issue Type: Improvement
Components: helix-core
Affects Versions: 0.7.1, 0.7.2, 0.6.x, master
Reporter: Marco P.
Priority: Minor
ZKHelixManager can detect an instance flapping and shut down.
https://github.com/apache/helix/blob/helix-0.6.x/helix-core/src/main/java/org/apache/helix/manager/zk/ZKHelixManager.java#L808-L812
Currently there is no mechanism for the application to learn about this event (and react to
it). The application will be "silently" excluded from participation, stop receiving notifications,
updates, etc.
A mechanism should exist for the application to be notified, allowing it to react in the appropriate
application-specific way (ignore, shutdown, restart, raise alert, ...).
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