Red Hat Bugzilla – Bug 1226859
Documentation missing about scaling up from 0 ceph nodes
Last modified: 2016-08-02 15:11:35 EDT
Description of problem: On a deployment with no Ceph nodes, issuing overcloud scale stack Cepth-Storage from 0 to any number is trying to scale out Ceph nodes anyway. Version-Release number of selected component (if applicable): openstack 1.0.3 and heat 0.5.0 How reproducible: Always Steps to Reproduce: openstack overcloud scale stack -r Ceph-Storage-1 -n 2 overcloud overcloud Actual results: Scaling adds Ceph-Storage correctly (status is UPDATE_COMPLETE) but CephStorageNodesPostDeployment failes. Its now hard to know for certain if "Storage" works correctly. Expected results: Error message at least, saying that the system has no Ceph configured so scaling will not be possible. Additional info:
I think the expected behaviour here is that it shouldn't be allowed to scale cephstorage from 0 ? Adding jprovazn on CC.
We could add some hardcoded check directly into the scale-out command, but I would lean to just put a note into documentation that scaleup from 0 is not supported for now.
Agree with Jan, lets fix the docs for GA and make a permanent fix on 7.1. Re-targeting it and asking for docs.
Moving the proper fix to OSP9
Hi Jarda and Mike, Just saw this BZ. We've got a table indicating what scale scenarios are supported: https://access.redhat.com/documentation/en/red-hat-openstack-platform/8/paged/director-installation-and-usage/chapter-9-scaling-the-overcloud Apart from this, is there anything else from the documentation side we need for this BZ?
Nope, it is all covered then.