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16.4. Cluster Failover in Python
To use the MRG 3 Python client with a cluster that uses a Virtual IP, simply specify the Virtual IP address as the broker address. Fail-over is handled transparently by the cluster manager.
In a case where you have a cluster that does not use a Virtual IP address, specify
reconnect=True and a list of host:port addresses as reconnect_urls when calling Connection.establish or Connection.open:
connection = qpid.messaging.Connection.establish("node1", reconnect=True, reconnect_urls=["node1", "node2", "node3"])
connection = qpid.messaging.Connection.establish("node1", reconnect=True, reconnect_urls=["node1", "node2", "node3"])
Heartbeats are disabled by default. You can enable them by specifying a heartbeat interval (in seconds) for the connection via the
heartbeat option. For example:
connection = qpid.messaging.Connection.establish("node1", reconnect=True, reconnect_urls=["node1", "node2", "node3"], heartbeat=10)
connection = qpid.messaging.Connection.establish("node1", reconnect=True, reconnect_urls=["node1", "node2", "node3"], heartbeat=10)
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