Bug 1877791: Release lock on KCM and KS termination #350
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@tnozicka: This pull request references Bugzilla bug 1877791, which is valid. The bug has been moved to the POST state. The bug has been updated to refer to the pull request using the external bug tracker. 3 validation(s) were run on this bug
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@tnozicka: This pull request references Bugzilla bug 1877791, which is valid. 3 validation(s) were run on this bug
In response to this:
Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: soltysh, tnozicka The full list of commands accepted by this bot can be found here. The pull request process is described here
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@tnozicka: All pull requests linked via external trackers have merged: Bugzilla bug 1877791 has been moved to the MODIFIED state. In response to this:
Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. |
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@tnozicka: Bugzilla bug 1877791 is in an unrecognized state (ON_QA) and will not be moved to the MODIFIED state. In response to this:
Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. |
KCM and KS need to gracefully terminate so the next replica can take over during a rollout. Graceful termination is important for giving up the lease, so another replica can become the leader without waiting 60s for the lease to expire.
KCM is especially important to be available as much as we can because it runs the endpoints controller which has to notice pods going down / rolling out and update service ASAP to stop sending traffic there.
Tried to patch it with minimal changes, we need to do it in upstream properly and then drop this.
https://issues.redhat.com/browse/WRKLDS-209
/cc @deads2k @soltysh