Open Stack

Hi folks,

With the master Ceilometer installed, and use mysql backend, the 
event-list command met a heavy time cost.  if we have a bit large number 
of events stored, it is easy to cause event list API request timeout, 
the rally people told me that this issue has broken the 
gate-rally-dsvm-rally job, see[1], there is a bug they reported to track 
this[3]. As we konw, the admin roled uers can only query thire own 
events(the project trait value can match the project id) and events 
without project_id trait, this is implemented in event-rbac feature[2], 
before this change, the job is OK. maybe we have mistake in sql query ? 
I will dig more.

FYI, some testing infomation in my devstack environment:

root at szxbzci0007:/opt/stack/ceilometer# time ceilometer event-list |wc -l
109

real    0m51.780s
user    0m0.354s
sys    0m0.060s


mysql> select count(*) from event;
+----------+
| count(*) |
+----------+
|     1540 |
+----------+
1 row in set (0.00 sec)

mysql> select count(*) from trait_text;
+----------+
| count(*) |
+----------+
|     3097 |
+----------+
1 row in set (0.01 sec)


[1] 
http://logs.openstack.org/35/222435/1/check/gate-rally-dsvm-rally/aa38d0f/rally-plot/results.html.gz#/CeilometerEvents.create_user_and_get_event/failures
[1] https://review.openstack.org/#/c/218706/
[2] https://bugs.launchpad.net/ceilometer/+bug/1494440

Best regards
Liu sheng