How Chubby Works

Let’s learn how Chubby works.

Service initialization

Upon initialization, Chubby performs the following steps:

• A master is chosen among Chubby replicas using Paxos.
• Current master information is persisted in storage, and all replicas become aware of the master.

Client initialization

Upon initialization, a Chubby client performs the following steps:

• Client contacts the DNS to know the listed Chubby replicas.
• Client calls any Chubby server directly via Remote Procedure Call (RPC).
• If that replica is not the master, it will return the address of the current master.