Description of problem: The free-stg cluster is experiencing extremely frequent sandbox creation issues. Version-Release number of selected component (if applicable): v3.7.9 How reproducible: Near 100% Steps to Reproduce: 1. Create a pod 2. The pod is scheduled but has reoccurring sandbox create errors Additional Info: Example events: 4:41:00 PM Normal Sandbox Changed Pod sandbox changed, it will be killed and re-created. 89 times in the last 36 minutes 4:26:16 PM Warning Failed Create Pod Sand Box Failed create pod sandbox. 54 times in the last 37 minutes 4:05:58 PM Normal Successful Mount Volume MountVolume.SetUp succeeded for volume "default-token-zhld2" 4:05:56 PM Normal Scheduled Successfully assigned busybox to ip-172-31-71-195.us-east-2.compute.internal
Logs from masters & busybox pod node: http://file.rdu.redhat.com/~jupierce/share/free-stg-sandbox.tgz
The logs have: Dec 05 21:46:42 ip-172-31-71-195.us-east-2.compute.internal atomic-openshift-node[2150]: E1205 21:46:42.954478 2150 cni.go:294] Error adding network: CNI request failed with status 400: 'failed to run IPAM for c138e6d686957756fd4c4a2b850b1434d58e94fd9ce2fe1ec1112e99db1a6d68: failed to run CNI IPAM ADD: no IP addresses available in network: openshift-sdn
*** This bug has been marked as a duplicate of bug 1518912 ***