Core
The CUE Zipline cores
communicate with each other via private network connections, using the
network addresses defined in the members
list
configured in the cluster configuration
object.
The members
list is a list of host name and port
pairs for each instance in the cluster. Each instance opens connections
to the other instances by connecting to these network addresses.
The network address of each instance is defined by the
listen_address
property of the
cluster
configuration object. The listen address may
be specified as a wild-card (e.g. 0.0.0.0
) in order
to listen on all network interfaces.
The port number of the cluster listen_address
must be different from the
server
port number, because the communication
protocol is different. By default, the server port is
12791
and the cluster listen address port is
12790
.
The host names and addresses specified in the members
list may not be specified as wild cards. They must
be host names that can be resolved or IP addresses, and they must be
accessible to the other instances in the cluster.