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| author | Jinwoo 'Joseph' Suh <jsuh@isi.edu> | 2012-09-11 11:28:51 -0400 |
|---|---|---|
| committer | Jinwoo 'Joseph' Suh <jsuh@isi.edu> | 2012-09-11 12:13:14 -0400 |
| commit | 611ee3b213409d07f2569ce8d600fb0ec105d4be (patch) | |
| tree | ddac52c3fd81c92c89a9b113826200cbb709e6ff /doc/source | |
| parent | 93c765219967c721717c51bf031ffc098e366121 (diff) | |
Added description of operators for extra_specs
There are several new operators added for extra_specs that are used
in compute capability filter and aggregate filter. These are
described in document in this patch. Fixed bug 1047036.
Change-Id: Id86c6672d7bda458ecb918f1900d6f8a9526ad41
Diffstat (limited to 'doc/source')
| -rw-r--r-- | doc/source/devref/filter_scheduler.rst | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/doc/source/devref/filter_scheduler.rst b/doc/source/devref/filter_scheduler.rst index 18b392089..62909a6e1 100644 --- a/doc/source/devref/filter_scheduler.rst +++ b/doc/source/devref/filter_scheduler.rst @@ -36,9 +36,34 @@ There are some standard filter classes to use (:mod:`nova.scheduler.filters`): host compute service satisfy any extra specifications associated with the instance type (that have no scope, see |TrustedFilter| for details). It passes hosts that can create the specified instance type. + + The extra specifications can have an operator at the beginning of the value + string of a key/value pair. If there is no operator specified, then a + default operator of 's==' is used. Valid operators are: + +:: + + * = (equal to or greater than as a number; same as vcpus case) + * == (equal to as a number) + * != (not equal to as a number) + * >= (greater than or equal to as a number) + * <= (less than or equal to as a number) + * s== (equal to as a string) + * s!= (not equal to as a string) + * s>= (greater than or equal to as a string) + * s> (greater than as a string) + * s<= (less than or equal to as a string) + * s< (less than as a string) + * <in> (substring) + * <or> (find one of these) + + Examples are: ">= 5", "s== 2.1.0", "<in> gcc", and "<or> fpu <or> gpu" + * |AggregateInstanceExtraSpecsFilter| - checks that the aggregate metadata satisfies any extra specifications associated with the instance type (that have no scope). It passes hosts that can create the specified instance type. + The extra specifications can have the same operators as + |ComputeCapabilityFilter|. * |ComputeFilter| - passes all hosts that are operational and enabled. * |CoreFilter| - filters based on CPU core utilization. It passes hosts with sufficient number of CPU cores. |