Bug 1401284 - Mistral takes 30% CPU when idle, over 50% CPU when busy
Summary: Mistral takes 30% CPU when idle, over 50% CPU when busy
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-mistral
Version: 10.0 (Newton)
Hardware: Unspecified
OS: Unspecified
unspecified
urgent
Target Milestone: ---
: ---
Assignee: RHOS Maint
QA Contact: nlevinki
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-12-04 11:06 UTC by Udi Kalifon
Modified: 2017-08-24 13:35 UTC (History)
9 users (show)

Fixed In Version:
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Environment:
Last Closed: 2017-08-24 13:35:19 UTC
Target Upstream Version:

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Description Udi Kalifon 2016-12-04 11:06:55 UTC 
Description of problem:
Mistral is taking around 30% CPU all the time, even when idle. When an action is running the CPU usage passes 50%. As a result, all openstack actions are taking longer and longer with every release we test. The main impact is on the GUI performances, but since the GUI is installed as standard with the undercloud and the CPU usage is high all the time - this impacts also the CLI.

Tailing the logs in /var/log/mistral reveals no activity.


Version-Release number of selected component (if applicable):
openstack-mistral-api-3.0.2-9.el7ost.noarch
openstack-mistral-engine-3.0.2-9.el7ost.noarch
python-openstackclient-3.2.0-2.el7ost.noarch


How reproducible:
100%


Steps to Reproduce:
1. Install the director (Newton release)
2. Run 'top' to see the CPU usage


Actual results:
Mistral is taking a lot of CPU when it's doing nothing.
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