Overcloud deployment with scheduler hints failed with message "No valid host was found. There are not enough hosts available., Code: 500"

Solution Verified - Updated -

Issue

When deployed overcloud with template file scheduler_hints_env.yaml, the deployment failed with message "No valid host was found. There are not enough hosts available., Code: 500"

From the nova-scheduler.log we can see TripleOCapabilitiesFilter returned 0 hosts.

2017-07-26 16:43:27.100 1757 INFO nova.filters [req-4ba8b511-7319-4f18-90bb-88a23fae47fe 48e00e1ba4db4682bbaa7b58b0688627 cd32b9b433ec4539a4fed98b2724f1f2 - - -] Filter TripleOCapabilitiesFilter returned 0 hosts
2017-07-26 16:43:27.100 1757 DEBUG nova.filters [req-4ba8b511-7319-4f18-90bb-88a23fae47fe 48e00e1ba4db4682bbaa7b58b0688627 cd32b9b433ec4539a4fed98b2724f1f2 - - -] Filtering removed all hosts for the request with instance ID 'UUID'. 
Filter results: [('RetryFilter', [
(u'director', u'UUID'), 
(u'director', u'UUID'), 
(u'director', u'UUID'), 
(u'director', u'UUID'), 
(u'director', u'UUID'), 
(u'director', u'UUID'), 
(u'director', u'UUID'), 
(u'director', u'UUID')]), ('TripleOCapabilitiesFilter', None)] get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:129
2017-07-26 16:43:27.100 1757 INFO nova.filters [req-4ba8b511-7319-4f18-90bb-88a23fae47fe 48e00e1ba4db4682bbaa7b58b0688627 cd32b9b433ec4539a4fed98b2724f1f2 - - -] Filtering removed all hosts for the request with instance ID 'UUID'. Filter results: ['RetryFilter: (start: 8, end: 8)', 'TripleOCapabilitiesFilter: (start: 8, end: 0)']

Environment

  • Red Hat Openstack Platform 10

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