<div class="gmail_quote">On Aug 30, 2015 5:38 PM, <<a href="mailto:openstack-request@lists.openstack.org">openstack-request@lists.openstack.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Openstack mailing list submissions to<br>
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Today's Topics:<br>
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1. Re: Cinder, custom filters and weighers. (Thomas Zilio)<br>
<br>
<br>
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Message: 1<br>
Date: Sat, 29 Aug 2015 19:41:43 +0200<br>
From: Thomas Zilio <<a href="mailto:zilio@efficit.com">zilio@efficit.com</a>><br>
To: Erlon Cruz <<a href="mailto:sombrafam@gmail.com">sombrafam@gmail.com</a>><br>
Cc: OpenStack Mailing List <<a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a>><br>
Subject: Re: [Openstack] Cinder, custom filters and weighers.<br>
Message-ID: <<a href="mailto:C703C005-D0A8-4336-9EDF-F8067BDC3E24@efficit.com">C703C005-D0A8-4336-9EDF-F8067BDC3E24@efficit.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hello,<br>
<br>
I did some more testing (on Icehouse and Juno) and the only way I was able to test my filter (or weigher) was by editing an existing filter (capacity_filter.py) and putting the content of my filter into it.<br>
I had to keep the class name (CapacityFilter) otherwise I had an error because the class CapacityFilter was not found (even if the CapacityFilter wasn't used in cinder.cfg).<br>
<br>
So it looks like it only loads its default filters and somehow wants its default filters classes if the file.py is present (removing capacity_filter.py was not a problem).<br>
<br>
Anyone ever managed to use custom Cinder filters ?<br>
And yes, everything is working as intended with Nova filters/weighers.<br>
<br>
Thanks and regards,<br>
Thomas<br>
<br>
> Le 25 ao?t 2015 ? 14:59, Shinobu <<a href="mailto:shinobu.kj@gmail.com">shinobu.kj@gmail.com</a>> a ?crit :<br>
><br>
> Sorry, my reply was to intended to different question.<br>
> Please ignore me -;<br>
><br>
> Shinobu<br>
><br>
> On Tue, Aug 25, 2015 at 9:42 PM, Thomas Zilio <<a href="mailto:zilio@efficit.com">zilio@efficit.com</a> <mailto:<a href="mailto:zilio@efficit.com">zilio@efficit.com</a>>> wrote:<br>
> Hello Erlon,<br>
><br>
> Yes, my class inherits from filters.BaseHostFilter.<br>
> That's what I though for 'scheduler_available_filters' , is this option required for newer release ?<br>
> This option is mentioned here : <a href="http://docs.openstack.org/developer/cinder/devref/filter_scheduler.html" rel="noreferrer" target="_blank">http://docs.openstack.org/developer/cinder/devref/filter_scheduler.html</a> <<a href="http://docs.openstack.org/developer/cinder/devref/filter_scheduler.html" rel="noreferrer" target="_blank">http://docs.openstack.org/developer/cinder/devref/filter_scheduler.html</a>><br>
><br>
> The test filter is:<br>
>> from cinder.openstack.common..scheduler import filters<br>
>> from cinder.openstack.common import log as logging<br>
>><br>
>> LOG = logging.getLogger(__name__)<br>
>><br>
>> class CustomFilter(filters.BaseHostFilter):<br>
>> def host_passes(self, host_state, filter_properties):<br>
>> LOG.warn("Attributes of host_state: " + str(dir(host_state)))<br>
>><br>
>> if host_state.host == "host1.xxx.xxx":<br>
>> LOG.warn("Don't want you: " + host_state.host)<br>
>> return False<br>
>> return True<br>
><br>
><br>
> I'll look into host_manager.py but I'm not sure what more it can give me.<br>
><br>
> Thanks,<br>
> Thomas<br>
><br>
><br>
>> Le 25 ao?t 2015 ? 14:16, Erlon Cruz <<a href="mailto:sombrafam@gmail.com">sombrafam@gmail.com</a> <mailto:<a href="mailto:sombrafam@gmail.com">sombrafam@gmail.com</a>>> a ?crit :<br>
>><br>
>> Hi Thomas,<br>
>><br>
>> Is you class inheriting from 'filters.BaseHostFilter'? Also, there's no such option 'scheduler_available_filters' in openstack/icehouse.<br>
>> A good way to have an insight of your problem is to put logs into 'cinder/scheduler/host_manager.py -> _choose_host_filters'.<br>
>><br>
>> Erlon<br>
>><br>
>> On Tue, Aug 25, 2015 at 9:02 AM, Shinobu <<a href="mailto:shinobu.kj@gmail.com">shinobu.kj@gmail.com</a> <mailto:<a href="mailto:shinobu.kj@gmail.com">shinobu.kj@gmail.com</a>>> wrote:<br>
>> Yes, it's possible using inspectors.<br>
>><br>
>> Shinobu<br>
>><br>
>> On Tue, Aug 25, 2015 at 8:32 PM, Thomas Zilio <<a href="mailto:zilio@efficit.com">zilio@efficit.com</a> <mailto:<a href="mailto:zilio@efficit.com">zilio@efficit.com</a>>> wrote:<br>
>> Hello,<br>
>><br>
>> I'm trying to test some custom cinder filters and weighers but I can't manage to make it work.<br>
>> I did the same for Nova and everything is working but the Cinder scheduler can't seem to find my custom classes.<br>
>><br>
>> My tests are made on a Icehouse installation.<br>
>><br>
>> The error message appearing in the log is the following one:<br>
>> > SchedulerHostFilterNotFound: Scheduler Host Filter CustomFilter could not be found.<br>
>><br>
>> The filter file is in the directory : /usr/lib/python2.6/site-packages/cinder/scheduler/filters<br>
>> And I added these lines to the cinder.conf file (not sure if the first one is required).<br>
>> > scheduler_available_filters=custom_filter.CustomFilter<br>
>> > scheduler_default_filters=AvailabilityZoneFilter,CapacityFilter,CapabilitiesFilter,CustomFilter<br>
>><br>
>> My filter file name is custom_filter.py and the class is CustomFilter.<br>
>><br>
>> I don't think it's related to what my filter does since it's not even found by the scheduler.<br>
>> I'm encountering the same issues with the weighers (and everything is working just fine on the Nova scheduler side).<br>
>><br>
>> If anyone has any idea how I could make this work I would be really grateful !<br>
>><br>
>> Thanks and regards,<br>
>> Thomas<br>
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