17 lines
856 B
YAML
17 lines
856 B
YAML
---
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other:
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The `[api]/instance_list_per_project_cells` configuration option
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was added, which controls whether or not an instance list for
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non-admin users checks all cell databases for results. If
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disabled (the default), then a list will always contact each cell
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database looking for instances. This is appropriate if you have a
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small number of cells, and/or if you spread instances from tenants
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evenly across cells. If you confine tenants to a subset of cells,
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then enabling this will result in fewer cell database calls, as
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nova will only query the cells for which the tenant has instances
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mapped. Doing this requires one more (fast) call to the API
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database to get the relevant subset of cells, so if that is likely
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to always be the same, disabling this feature will provide better
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performance.
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