|Summary:||Whereabouts should reconcile stranded IP addresses|
|Product:||OpenShift Container Platform||Reporter:||Douglas Smith <dosmith>|
|Component:||Networking||Assignee:||Douglas Smith <dosmith>|
|Networking sub component:||multus||QA Contact:||Weibin Liang <weliang>|
|Status:||CLOSED ERRATA||Docs Contact:|
|Fixed In Version:||Doc Type:||Enhancement|
Feature: Implements an IP reconciliation job for Whereabouts IPAM CNI called "ip-reconciler" which runs as a Kubernetes cronjob. Reason: On occasion events occur where the CNI DEL action will not complete for a given pod (for example, a forcefully powered off node), and in such a case stored IP address allocations may be left stranded and unable to be allocated without manual intervention. Result: Stranded IP address allocations are garbage collected automatically on a periodic basis to free unused IP addresses.
|:||2028964 (view as bug list)||Environment:|
|Last Closed:||2022-03-10 16:31:36 UTC||Type:||Bug|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Cloudforms Team:||---||Target Upstream Version:|
|Bug Depends On:|
Description Douglas Smith 2021-12-03 20:23:40 UTC
Description of problem: IP reconciliation is a feature in the latest whereabouts, and due to reports, this feature should be backported all the way to 4.6.z. The feature is in the form of a cron job which reconciles the IP addresses. Version-Release number of selected component (if applicable): 4.6-4.10 How reproducible: Specialized. Customers often experience this when nodes are rebooted, or pods are force deleted, and therefore CNI DEL calls aren't processed in their entirety by Whereabouts Steps to Reproduce: (We will produce a procedure which produces orphaned IP addresses) Actual results: IP addresses will remain stranded, and never utilized again. Expected results: IP addresses that were stranded become available for use again. Additional info: 4.10 has the reconciliation code but still requires a bug fix from upstream.
Comment 1 Douglas Smith 2022-01-04 13:50:51 UTC
This can be verified using this procedure: https://gist.github.com/dougbtv/599e8a1a747fde300d46e912f573b40f Thank you!
Comment 4 errata-xmlrpc 2022-03-10 16:31:36 UTC
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.10.3 security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2022:0056
Comment 6 Red Hat Bugzilla 2023-09-15 01:17:49 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days