openstack/openstack-manuals
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Document more compute filters

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Document NumInstancesFilter, IoOpsFilter, PciPassthroughFilter.

Change-Id: Ib31ae6bd55d19547a5dfd1174b50c61fb3392e92
Closes-Bug: #1295751
This commit is contained in:
Andreas Jaeger 2014-08-24 19:18:28 +02:00
parent 52eeac3e9e
commit cee08e37f5
1 changed files with 30 additions and 0 deletions
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30
doc/config-reference/compute/section_compute-scheduler.xml
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@ -435,6 +435,20 @@ aggregate_image_properties_isolation_separator=.</programlisting>
<programlisting language="ini">isolated_hosts=server1,server2
isolated_images=342b492c-128f-4a42-8d3a-c5088cf27d13,ebd267a6-ca86-4d6c-9a0e-bd132d6b7d09</programlisting>
</section>
<section xml:id="ioopsfilter">
<title>IoOpsFilter</title>
<para>
The IoOpsFilter filters hosts by concurrent I/O operations
on it. Hosts with too many concurrent I/O operations will
be filtered out. The <option>max_io_ops_per_host</option>
option specifies the maximum number of I/O intensive
instances allowed to run on a host. A host will be ignored
by the scheduler if more than
<option>max_io_ops_per_host</option> instances in build,
resize, snapshot, migrate, rescue or unshelve task states
are running on it.
</para>
</section>
<section xml:id="jsonfilter">
<title>JsonFilter</title>
<para>The JsonFilter allows a user to construct a custom
@ -492,6 +506,22 @@ isolated_images=342b492c-128f-4a42-8d3a-c5088cf27d13,ebd267a6-ca86-4d6c-9a0e-bd1
<literal>os:scheduler_hints</literal> key:</para>
<programlisting language="json"><xi:include href="../../common/samples/server-scheduler-hints2.json" parse="text"/></programlisting>
</section>
<section xml:id="numinstancesfilter">
<title>NumInstancesFilter</title>
<para>
Hosts that have more instances running than specified by
the <option>max_instances_per_host</option> option are
filtered out when this filter is in place.
</para>
</section>
<section xml:id="pcipassthroughfilter">
<title>PciPassthroughFilter</title>
<para>
The filter schedules instances on a host if the host has
devices that meet the device requests in the
<literal>extra_specs</literal> attribute for the flavor.
</para>
</section>
<section xml:id="ramfilter">
<title>RamFilter</title>
<para>Only schedules instances on hosts that have