We are having issue creating VMs using a most of our VM flavors after upgrading to OSP 16.2. These flavor parameters have worked for us in previous OSP versions (16.0 and 16.1)
When creating a VM using certain VM flavors, the VM creation fails and nova-conductor logs show a following error related to "tc" command.
'libvirt.libvirtError: internal error: Child process (tc class add dev tap07a2bdfd-a5 parent 1: classid 1:1 htb rate 10000kbps ceil 50000kbps burst 15000000kb quantum 853) unexpected exit status 1: Illegal "buffer"\nUsage: ... qdisc add ... htb [default N] [r2q N]\n
- An example of a flavor quotas that previously worked but no longer does:
quota:vif_inbound_average=10000 quota:vif_inbound_burst=15000000 quota:vif_inbound_peak=50000 quota:vif_outbound_average=10000 quota:vif_outbound_burst=15000000 quota:vif_outbound_peak=50000
we found a workaround that if we remove "vif_inbound_average" and "vif_outbound_average" settings, the rest of the settings apply and VM builds.
- Also for comparison, following set of quota settings continued to work post upgrade:
quota:vif_inbound_average: 2500 quota:vif_inbound_burst: 3750000 quota:vif_inbound_peak: 12500 quota:vif_outbound_average: 2500 quota:vif_outbound_burst: 3750000 quota:vif_outbound_peak: 12500
- Red Hat OpenStack Platform 16.2 (RHOSP)
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