Description of problem:
Using ceph-ansible to deploy an environment with ceph storage will not work OOB without providing extra parameters.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
deploy in the following way:
openstack overcloud deploy \
--libvirt-type kvm \
--ntp-server clock.redhat.com \
-e /home/stack/environments/node_scale.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/ceph-ansible/ceph-ansible.yaml \
-e /home/stack/environments/ceph_devices.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/net-multiple-nics.yaml \
-e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml \
ceph_devices.yaml is the only configuration that I expect to have to supply here because I used 5 OSDs:
see bug https://bugzilla.redhat.com/show_bug.cgi?id=1586155
see bug https://bugzilla.redhat.com/show_bug.cgi?id=1502878
Please provide (In reply to Amit Ugol from comment #0)
> Description of problem:
> Using ceph-ansible to deploy an environment with ceph storage will not work
> OOB without providing extra parameters.
That's unavoidable and not a bug. You need to appropriately plan a Ceph deployment as a function of your hardware in all current versions of Ceph.
> ceph_devices.yaml is the only configuration that I expect to have to supply
> here because I used 5 OSDs:
Why do you have that expectation? How many OSD nodes do you have?
The docs do mention that you need to set your PG count and refer you to the PG count calculator so that's one parameter you will have to override in addition to your devices list. I specifically mention this because you mentioned bz 1502878.
> Actual results:
> see bug https://bugzilla.redhat.com/show_bug.cgi?id=1586155
That's specific to deploying a version N overcloud with an N-1 undercloud. I don't think it clarifies whatever issue you hit.
> see bug https://bugzilla.redhat.com/show_bug.cgi?id=1502878
If you got something along the lines of ["Error ERANGE: pg_num 128 size 3 would mean 768 total pgs, which exceeds max 600 (mon_max_pg_per_osd 200 * num_in_osds 3)"] then please confirm so we can troubleshoot that issue.
In order to proceed I will need your ceph-ansible run log. For OSP14 by default, config-download will place that in /var/lib/mistral/overcloud/ceph-ansible/
If you would please tar that up and attach a reference to it in this BZ, then I'd be happy to try to figure out what happened.
We haven't gotten your logs. Feel free to re-open and if you can provide the requested information.