Replication is the process that transfers data from an active
master to a slave server, which reproduces the data stream to
achieve, as best as possible, a faithful copy of the data in the
To check replication health, you may start with sampling the service, i.e. committing some Sentinel value in the master and retrieving it from the slave.
Sentinel data: Tap tap… Is this thing on?
If you want to make sure that replication is working, the easiest test is using replication itself to see …[Read more...]