Ceph

OSDMap has a new field properties, a named list of properties map

A given property list would be set with ceph osd set properties mypropertylist foo=bar frob=nitz ...

When creating an erasure code crush ruleset, the name of the property list is used instead of the list itself and is looked up in the osdmap before instantiating the erasure code plugin to which the crush ruleset creation is delegated.

ceph osd pool create also has a property reference instead of a property list and is looked up by the same function when setting the pool size etc.

PGBackend lookup the properties in osdmap before instantiating the erasure code plugin