CODEWITHSUNDEEP
cassandra
Mandroid
Mandroid

Reputation: 7524

Cassandra failure detection mechanism

Cassandra has gossiper implementation(class org.apache.cassandra.gms.Gossiper) as well as implementation of 'The Phi Accrual Failure Detector'(class org.apache.cassandra.gms.FailureDetector).

As far as I know, both are mechanisms for failure detection. So which one of these is exactly used for detecting node failures by Cassandra?

Upvotes: 2

Views: 196

Answers (1)

Erick Ramirez
Erick Ramirez

Reputation: 16393

The 2 work hand-in-hand.

The FailureDetector uses the last gossip heartbeat to calculate the elapsed interval in order to decide whether a node has failed and mark it as down. Cheers!

Upvotes: 5

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