Merge "api-ref: explain aggregate set_metadata semantics"

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Zuul 2019-03-04 13:20:13 +00:00 committed by Gerrit Code Review
commit 482d8c9621

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@ -1644,7 +1644,12 @@ aggregate_metadata_request:
Metadata key and value pairs associated with the aggregate.
The maximum size for each metadata key and value pair is 255 bytes.
.. warning:: You should not change or unset the availability zone of an
New keys will be added to existing aggregate metadata. For existing
keys, if the value is ``null`` the entry is removed, otherwise the
value is updated. Note that the special ``availability_zone`` metadata
entry cannot be unset to ``null``.
.. warning:: You should not change the availability zone of an
aggregate when that aggregate has hosts which contain servers in it
since that may impact the ability for those servers to move to another
host.