The initial fix caused a problem that prevented election of a new membership coordinator in a certain case. The case was a view with nodes [A, B, C, D, E] where C was the coordinator. Node A had crashed and the crash had been detected by B. Node C then left the cluster, sending a Leave message to B. B's JoinLeave did not know about the HealthMonitor's decision that A was crashed and did not become the new coordinator.
This commit makes B's JoinLeave pay attention to the crashed-member set in the HealthMonitor when deciding whether to become the membership coordinator for the cluster. Thank you for submitting a contribution to Apache Geode. In order to streamline the review of the contribution we ask you to ensure the following steps have been taken: ### For all changes: - [ ] Is there a JIRA ticket associated with this PR? Is it referenced in the commit message? - [ ] Has your PR been rebased against the latest commit within the target branch (typically `develop`)? - [ ] Is your initial contribution a single, squashed commit? - [ ] Does `gradlew build` run cleanly? - [ ] Have you written or updated unit tests to verify your changes? - [ ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? ### Note: Please ensure that once the PR is submitted, you check travis-ci for build issues and submit an update to your PR as soon as possible. If you need help, please send an email to [email protected]. [ Full content available at: https://github.com/apache/geode/pull/3132 ] This message was relayed via gitbox.apache.org for [email protected]
