Graph Flow Control using Galera 3 wsrep_flow_control_paused_ns
Bug #1325836 reported by
Kenny Gryp
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Percona Monitoring Plugins |
New
|
Undecided
|
Unassigned |
Bug Description
The current Flow Control graphs are broken in some scenarios.
Clustercheck does a show global status, which resets the wsrep_flow_
Reason for that is that clustercheck was performed on the database 8 times per second. While that's not optimal, doing it once per minute (which is very very low frequency) can also easily distort the flow control graphs.
Galera 3 has a counter wsrep_flow_
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This is not documented yet, see https:/ /github. com/codership/ galera/ issues/ 48