nova/releasenotes/notes/run-meta-api-per-cell-69d74cdd70528085.yaml
Kevin_Zheng e2e372b2b1 Allow run metadata api per cell
Adds configuration option ``[api]/local_metadata_per_cell``
to allow user run Nova metadata API service per cell. Doing
this can avoid query API DB for instance information each
time an instance query for its metadata.

Implements blueprint run-meta-api-per-cell

Change-Id: I2e6ebb551e782e8aa0ac90169f4d4b8895311b3c
2019-01-14 10:20:50 -05:00

11 lines
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YAML

---
features:
- |
Added configuration option ``[api]/local_metadata_per_cell`` to allow
users to run Nova metadata API service per cell. Doing this could provide
performance improvement and data isolation in a multi-cell deployment.
But it has some caveats, see the
`Metadata api service in cells v2 layout`_ for more details.
.. _Metadata api service in cells v2 layout: https://docs.openstack.org/nova/latest/user/cellsv2-layout.html#nova-metadata-api-service