Bug 2018276 - Routes are inaccessible from Infra nodes which holds the ingress VIP
Summary: Routes are inaccessible from Infra nodes which holds the ingress VIP
Keywords:
Status: CLOSED DUPLICATE of bug 2009873
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Networking
Version: 4.8
Hardware: other
OS: Linux
urgent
urgent
Target Milestone: ---
: ---
Assignee: Tim Rozet
QA Contact: Anurag saxena
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-10-28 17:23 UTC by Ashish Sharma
Modified: 2021-12-09 07:49 UTC (History)
6 users (show)

Fixed In Version:
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Last Closed: 2021-11-01 14:14:19 UTC
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Comment 10 Tim Rozet 2021-11-01 14:14:19 UTC 
It looks like this is the same as https://bugzilla.redhat.com/show_bug.cgi?id=2009873

Basically what happens is ovnkube-node subscribes to netlink for address updates on the host. Once we see these updates, we update our annotation and routes. The node where the VIP lives requires this route to be able to reach the VIP. It looks like after some time the netlink subscription may fail, and ovnkube-node is not re-subscribing. Essentially ovnkube-node stops receiving events. By restarting ovnkube-node it restarts the netlink subscription, so things work until another error is received. The fix will be to check if there are any errors or if the netlink subscription goes down and then resubscribe.

*** This bug has been marked as a duplicate of bug 2009873 ***
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