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Bug 1777517

Summary:	Unable to delete Neutron Port from Pool
Product:	OpenShift Container Platform	Reporter:	Maysa Macedo <mdemaced>
Component:	Networking	Assignee:	Maysa Macedo <mdemaced>
Networking sub component:	kuryr	QA Contact:	GenadiC <gcheresh>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	unspecified
Priority:	unspecified	CC:	gcheresh, itbrown, ltomasbo, mdulko
Version:	4.4
Target Milestone:	---
Target Release:	4.3.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1777509	Environment:
Last Closed:	2020-01-23 11:14:45 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1777509
Bug Blocks:

Description Maysa Macedo 2019-11-27 17:08:58 UTC

+++ This bug was initially created as a clone of Bug #1777509 +++

Description of problem:

When deleting ports from a pool an update of a dict that is being iterated is wrongly performed causing the following exception:

2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging File "/usr/lib/python3.6/site-packages/kuryr_kubernetes/handlers/logging.py", line 37, in __call__
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging self._handler(event)
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging File "/usr/lib/python3.6/site-packages/kuryr_kubernetes/handlers/retry.py", line 78, in __call__
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging self._handler(event)
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging File "/usr/lib/python3.6/site-packages/kuryr_kubernetes/handlers/k8s_base.py", line 77, in __call__
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging self.on_deleted(obj)
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging File "/usr/lib/python3.6/site-packages/kuryr_kubernetes/controller/handlers/namespace.py", line 159, in on_deleted
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging self._drv_vif_pool.delete_network_pools(net_crd['spec']['netId'])
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging File "/usr/lib/python3.6/site-packages/kuryr_kubernetes/controller/drivers/vif_pool.py", line 1108, in delete_network_pools
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging vif_drv.delete_network_pools(net_id)
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging File "/usr/lib/python3.6/site-packages/kuryr_kubernetes/controller/drivers/vif_pool.py", line 1017, in delete_network_pools
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging for pool_key, ports in self._available_ports_pools.items():
2019-11-19 18:15:13.259 1 ERROR kuryr_kubernetes.handlers.logging RuntimeError: dictionary changed size during iteration



Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Run OCP conformance tests
2.
3.

Actual results:


Expected results:


Additional info:

Comment 2 Itzik Brown 2019-12-11 14:33:38 UTC

Ran conformance tests.                                                             
The following failed:                                                              
[k8s.io] Kubelet when scheduling a busybox command that always fails in a pod should have an terminated reason [NodeConformance] [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
[sig-cli] Kubectl client [k8s.io] Kubectl logs should be able to retrieve and filter logs  [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
[sig-network] DNS should provide /etc/hosts entries for the cluster [LinuxOnly] [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
[sig-network] DNS should provide DNS for services  [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
[sig-network] DNS should provide DNS for the cluster  [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
[sig-storage] ConfigMap should be consumable from pods in volume [NodeConformance] [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
[sig-storage] Projected downwardAPI should provide container's memory limit [NodeConformance] [Conformance] [Suite:openshift/conformance/parallel/minimal] [Suite:k8s]
                                                                                   
No restart of the kuryr-controller                                                 
                                                                                   
Using 4.3.0-0.nightly-2019-12-11-073659

Comment 4 errata-xmlrpc 2020-01-23 11:14:45 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, 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/RHBA-2020:0062