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Bind source address for cluster communication

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The first address specified as a bind parameter
(server.bindaddr[0]) gets used as the source IP
for cluster communication.

If no bind address is specified by the user, the
behavior is unchanged.

This patch allows multiple Redis Cluster instances
to communicate when running on the same interface
of the same host.
This commit is contained in:
Matt Stancliff
2014-03-03 10:57:27 -05:00
parent 8d011492a0
commit e5b1e7be64
3 changed files with 37 additions and 7 deletions
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11
src/cluster.c
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@ -2411,9 +2411,14 @@ void clusterCron(void) {
mstime_t old_ping_sent;
clusterLink *link;
fd = anetTcpNonBlockConnect(server.neterr, node->ip,
node->port+REDIS_CLUSTER_PORT_INCR);
if (fd == -1) continue;
fd = anetTcpNonBlockBindConnect(server.neterr, node->ip,
node->port+REDIS_CLUSTER_PORT_INCR, server.bindaddr[0]);
if (fd == -1) {
redisLog(REDIS_DEBUG, "Unable to connect to "
"Cluster Client [%s]:%d", node->ip,
node->port+REDIS_CLUSTER_PORT_INCR);
continue;
}
link = createClusterLink(node);
link->fd = fd;
node->link = link;