Sheng Yang created CLOUDSTACK-799:
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Summary: [Load Test] Check router statistics falls behind in
gathering stats by more than 2 times the set value
Key: CLOUDSTACK-799
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-799
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Affects Versions: 4.0.0
Reporter: Sheng Yang
Assignee: Sheng Yang
Fix For: 4.1.0
Frequency of router statistics interval is set to default 5 mins. But observing
a delay of as high as 16 mins between successive router statistics collection.
Setup:
Clustered set up with 2 MS
1 zone, advanced with RVR
112 Pods [Each Pod having 2 Clusters]
224 Clusters [Each cluster having 8 hosts and one primary storage]
1782 Hosts
4000 User accounts [Each account having one network]
12000 User instances
8000 Virtual Routers [Since its RVR]
router.check.interval = 5 mins
The router check is falling behind by more than 11 mins in certain cases. The
least value for frequency is 8 mins and highest is as high as 16 mins, while
expected is 5 mins.
The analysis was done for a period of about 3 hours across both MS. Monitoring
was done based on the "CheckRouterCommand" for each router across both MS.
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