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| author | Qiu Yu <unicell@gmail.com> | 2013-06-20 19:49:20 +0800 |
|---|---|---|
| committer | Qiu Yu <unicell@gmail.com> | 2013-06-21 21:58:21 +0800 |
| commit | f3a6de6a1647b1d86e9d8750228536663b23cd3e (patch) | |
| tree | 0608c337281250889b7528a263d0105051d653b8 /doc | |
| parent | facf42d0bab7a4f97c654a5724189609ad185559 (diff) | |
| download | nova-f3a6de6a1647b1d86e9d8750228536663b23cd3e.tar.gz nova-f3a6de6a1647b1d86e9d8750228536663b23cd3e.tar.xz nova-f3a6de6a1647b1d86e9d8750228536663b23cd3e.zip | |
Add AggregateRamFilter
Implements blueprint per-aggregate-resource-ratio
* AggregateRamFilter to support per-aggregate ram_allocation_ratio
* Falls back to global setting if per-aggregate value not found
DocImpact
Change-Id: I93e069f0ac3f595d9a2a17119274c7bfbe8fca31
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/source/devref/filter_scheduler.rst | 6 |
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>` |