[Bug 1621936] [NEW] Murano API service contains errors in log file after service start

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You have been subscribed to a public bug by Ubuntu Foundations Team Bug Bot (crichton):

During murano-api service start you may observe errors in /var/log/murano/murano-api.log log file:
"""
...
2016-09-09 16:31:37.631 24299 DEBUG murano.common.statservice [-] Updating statistic information. update_stats /usr/lib/python2.7/dist-packages/murano/common/statservice.py:59
2016-09-09 16:31:37.631 24299 DEBUG murano.common.statservice [-] Stats object: <murano.api.v1.request_statistics.RequestStatisticsCollection object at 0x7fa9639de990> update_stats /usr/lib/python2.7/dist-packages/murano/common/statservice.py:60
2016-09-09 16:31:37.631 24299 DEBUG murano.common.statservice [-] Stats: (Requests: 0  Errors: 0  Ave.Res.Time 0.0000
 Per tenant: {}) update_stats /usr/lib/python2.7/dist-packages/murano/common/statservice.py:66
2016-09-09 16:31:37.698 24299 DEBUG oslo_db.sqlalchemy.engines [-] MySQL server mode set to STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION _check_effective_sql_mode /usr/lib/python2.7/dist-packages/oslo_db/sqlalchemy/engines.py:256
2016-09-09 16:31:37.737 24299 ERROR murano.common.statservice [-] Failed to get statistics object from a database. 'module' object has no attribute 'NUM_CPUS'
2016-09-09 16:31:37.737 24299 ERROR murano.common.statservice Traceback (most recent call last):
2016-09-09 16:31:37.737 24299 ERROR murano.common.statservice   File "/usr/lib/python2.7/dist-packages/murano/common/statservice.py", line 75, in update_stats
2016-09-09 16:31:37.737 24299 ERROR murano.common.statservice     psutil.NUM_CPUS,
2016-09-09 16:31:37.737 24299 ERROR murano.common.statservice AttributeError: 'module' object has no attribute 'NUM_CPUS'
2016-09-09 16:31:37.737 24299 ERROR murano.common.statservice
...
"""

The issues shows itself because of a new version (3.4.2-1) of python-
psutil package: http://packages.ubuntu.com/xenial/python-psutil

The detailed instruction how to reproduce the issue was written by my manager (Igor Yozhikov):
https://docs.google.com/document/d/1zf4WROMtd2Miq57WHDRRC7Qt-GZ6AIpQIlL2S3FT6Qo/view

The fix was proposed/merged here:
https://review.openstack.org/#/c/360727/

Related bug:
https://bugs.launchpad.net/murano/+bug/1598208

** Affects: murano (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: murano-api patch python-psutil
-- 
Murano API service contains errors in log file after service start
https://bugs.launchpad.net/bugs/1621936
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