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Type:
New Feature
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Status: Open (View Workflow)
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Priority:
Trivial
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Resolution: Unresolved
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Affects Version/s: 2.5
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Fix Version/s: 2.6
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Component/s: galeramon
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Labels:
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Epic Link:
The Galera monitor can detect the lag between certification and application of events in a Galera cluster by writing an event on the write-master node and doing "dirty reads" on the nodes labeled as slaves. This gives similar functionality for Galera clusters that is already in place for Master-Slave clusters in mysqlmon.
Another option is to use wsrep_local_recv_queue as a measurement of lag in a Galera cluster.