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-rw-r--r--doc/source/devref/filter_scheduler.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/source/devref/filter_scheduler.rst b/doc/source/devref/filter_scheduler.rst
index 1a5ed11a2..6cde0d61c 100644
--- a/doc/source/devref/filter_scheduler.rst
+++ b/doc/source/devref/filter_scheduler.rst
@@ -78,6 +78,11 @@ There are some standard filter classes to use (:mod:`nova.scheduler.filters`):
* |JsonFilter| - allows simple JSON-based grammar for selecting hosts.
* |RamFilter| - filters hosts by their RAM. Only hosts with sufficient RAM
to host the instance are passed.
+* |AggregateRamFilter| - filters hosts by RAM with per-aggregate
+ ram_allocation_ratio setting. If no per-aggregate value is found, it will
+ fall back to the global default ram_allocation_ratio. If more than one value
+ is found for a host (meaning the host is in two differenet aggregate with
+ different ratio settings), the minimum value will be used.
* |SimpleCIDRAffinityFilter| - allows to put a new instance on a host within
the same IP block.
* |DifferentHostFilter| - allows to put the instance on a different host from a
@@ -285,6 +290,7 @@ in :mod:`nova.tests.scheduler`.
.. |IsolatedHostsFilter| replace:: :class:`IsolatedHostsFilter <nova.scheduler.filters.isolated_hosts_filter>`
.. |JsonFilter| replace:: :class:`JsonFilter <nova.scheduler.filters.json_filter.JsonFilter>`
.. |RamFilter| replace:: :class:`RamFilter <nova.scheduler.filters.ram_filter.RamFilter>`
+.. |AggregateRamFilter| replace:: :class:`AggregateRamFilter <nova.scheduler.filters.ram_filter.AggregateRamFilter>`
.. |SimpleCIDRAffinityFilter| replace:: :class:`SimpleCIDRAffinityFilter <nova.scheduler.filters.affinity_filter.SimpleCIDRAffinityFilter>`
.. |GroupAntiAffinityFilter| replace:: :class:`GroupAntiAffinityFilter <nova.scheduler.filters.affinity_filter.GroupAntiAffinityFilter>`
.. |DifferentHostFilter| replace:: :class:`DifferentHostFilter <nova.scheduler.filters.affinity_filter.DifferentHostFilter>`