Description of problem:
Client is seeing the following issue with nova instances:
crush: straw2: divide by 0 when weight is 0
Client uses Ubuntu for OpenStack and RHEL7 with Ceph 1.3.
Believed to be the following upstream bug:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Instance should launch
Instance fails w/ error: on MON Nov 3 00:26:01 ndc-003-022 kernel: [1566825.894236] libceph: mon1 172.16.151.16:6789 feature set mismatch, my 2b84a042a42 < server's 102b84a042a42, missing 100000000
Upstream bug appears to be committed in code:
git tag --contains b5921d55
Created attachment 1089102 [details]
tcpdump from OSP client to Mon
Jason confirmed this is a RADOS issue, not RBD-specific - adjusting sub-component to match.
This is not a bug - client upgraded from firefly to hammer but never restarted instances hence not picking up new hammer libraries for qemu process.