QuickFIX/J supports failover in both the initiators and acceptors. On the initiator side, multiple connections can be configured. If a connection fails, the initiator will try the next connection until it is able to reconnect. On the acceptor side, a session can be configured to reload it's session state before a logon is processed. In a failover scenario, the active session might be updating a persistent session state that can be accessed by the backup session when failover occurs.
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