It's easy to introduce JSON syntax errors when editing templates, so this can be useful to identify what/where is broken:
Nova starts creating instances that immediately go to the ERROR
state. If it is observed that instances are not being created properly and if the command nova list
shows ERROR
state, then it will be necessary to check the scheduler log.
The following is a sample error message displayed under /var/log/nova/scheduler.log
:
To solve this problem, it is necessary to set the Nova configuration file (/etc/nova.conf
) as follows:
scheduler_default_filters=AllHostsFilter
For further details, visit the following URL: