Is the number of sentinels that need to agree the fact that the master is not reachable and make a failover procedure promoting slave to master.

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14-01-2019
Computers and Technology

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Is the number of sentinels that need to agree the fact that the master is not reachable and make a failover procedure promoting slave to master.

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Diatonic254 Diatonic254 · Answer 1 · 2019-01-24T11:00:14+01:00

Diatonic254 Diatonic254

24-01-2019

The quorum is the number of sentinels that need to agree the fact that the master is not reachable and make a failover procedure promoting slave to master.

The quorum is used to detect the failure only. Actually, in order to perform a failover, one of the sentinels need to be elected leader and be authorized to proceed. This can only happen when there is a vote of the majority of the Sentinel processes.

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