Examples of QuorumPeer

org.apache.zookeeper.server.quorum.QuorumPeer

This class manages the quorum protocol. There are three states this server can be in:

Leader election - each server will elect a leader (proposing itself as a leader initially).
Follower - the server will synchronize with the leader and replicate any transactions.
Leader - the server will process requests and forward them to followers. A majority of followers must log the request before it can be accepted.

This class will setup a datagram socket that will always respond with its view of the current leader. The response will take the form of:

 int xid; long myid; long leader_id; long leader_zxid;

The request for the current leader will consist solely of an xid: int xid;

            tmpdir[i] = ClientBase.createTmpDir();
            port[i] = PortAssignment.unique();
        }


        for(int i = 0; i < count; i++) {
            QuorumPeer peer = new QuorumPeer(peers, tmpdir[i], tmpdir[i], port[i], 3, i, 1000, 2, 2);
            peer.startLeaderElection();
            FLERestartThread thread = new FLERestartThread(peer, i);
            thread.start();
            restartThreads.add(thread);
        }
        LOG.info("Started threads " + getName());

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Examples of QuorumPeer

Examples of org.apache.zookeeper.server.quorum.QuorumPeer