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Re: [rdo-list] [tripleo] [oooq] Deployment to baremetal fails; "No valid host was found"



On 06/20/2016 11:46 AM, Gerard Braad wrote:
> Finally was able to get some time to look more into the log files
> 
> On Mon, Jun 20, 2016 at 10:52 PM, Gerard Braad <me gbraad nl> wrote:
>> On Mon, Jun 20, 2016 at 10:34 PM, John Trowbridge <trown redhat com> wrote:
>>> I usually grep for 'returned 0 host' to find which filter is failing
> 
> after the Compute capability filter:
> 2016-06-20 09:15:18.275 1186 DEBUG nova.filters
> [req-665aaa1f-7788-4aea-85cd-c08097d934c5
> 0b48c6614e73469eb2350fe09c33ee10 2fea396ebcab48ed8c150ef31506f66f - -
> -] Filter ComputeCapabilitiesFilter returned 1 host(s)
> get_filtered_objects
> /usr/lib/python2.7/site-packages/nova/filters.py:104
> 
> It seems a node that claims to have less than 4G of memory. The node
> actually contains 64G of memory and this is also reported by the
> introspection (node-show)
> 
> 2016-06-20 09:15:18.276 1186 DEBUG nova.scheduler.filters.ram_filter
> [req-665aaa1f-7788-4aea-85cd-c08097d934c5
> 0b48c6614e73469eb2350fe09c33ee10 2fea396ebcab48ed8c150ef31506f66f - -
> -] (undercloud, 0956df36-b642-44b8-a67f-0df88270372b) ram: 0MB disk:
> 0MB io_ops: 0 instances: 0 does not have 4096 MB usable ram before
> overcommit, it only has 0 MB. host_passes
> /usr/lib/python2.7/site-packages/nova/scheduler/filters/ram_filter.py:45
> 2016-06-20 09:15:18.276 1186 INFO nova.filters
> [req-665aaa1f-7788-4aea-85cd-c08097d934c5
> 0b48c6614e73469eb2350fe09c33ee10 2fea396ebcab48ed8c150ef31506f66f - -
> -] Filter RamFilter returned 0 hosts

What does `nova flavor-list` return?

I've seen this error and gotten past it by making sure my flavors have
only 4G of RAM instead of trying to make them represent the hardware.

  John


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