The use of pirnt is suitable for those programmers who have enough time. But it’s better to use logging. In addition, learn to use the Python debugger for debugging errors and Pylint to prevent errors and to make the code more readable.
In order to display the log messages on the screen, use the following code:
“5 – five-minute introduction to the module logging Python”Continue reading
After a while of running Openstack and performing a lot of testing (especially Tempest) you may find that your database seems to get pretty full … and this is partly down to expired keystone token’s that remain in the DB table.
To resolve this simply setup a periodic Cron job to execute
1 | # /usr/bin/keystone-manage token_flush |
This will remove all expired tokens to help clean-up the DB a bit
Of course, this action better to insert as cron task:
1 2 3 4 | # cat keystone_token_flush #!/bin/bash 10 * * * * root /usr/bin/keystone-manage token_flush |
Если вы получили этот питоньячий костыль при попытке запуска glance
ERROR: Unable to load glance-api-keystone from configuration file /etc/glance/glance-api-paste.ini.
Got: ImportError('cannot import name _uuid_generate_random',)
“OpenStack : Glance 11.0.1 on OpenSuse 13.2 – ‘cannot import name _uuid_generate_random’”Continue reading
Отслеживания питоньячего кода привело к удивительном открытию. В процессы установки glance чуда по мануалам мы получили, в частности два питоньячих модуля в основной системе:
“OpenStack : по следам костыльного сообщения – No handlers could be found for logger “oslo_config.cfg””Continue reading
http://docs.openstack.org/project-team-guide/oslo.html