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Use best effort address binding to connect to the master

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We usually want to reach the master using the address of the interface
Redis is bound to (via the "bind" config option). That's useful since
the master will get (and publish) the slave address getting the peer
name of the incoming socket connection from the slave.

However, when this is not possible, for example because the slave is
bound to the loopback interface but repliaces from a master accessed via
an external interface, we want to still connect with the master even
from a different interface: in this case it is not really important that
the master will provide any other address, while it is vital to be able
to replicate correctly.

Related to issues #2609 and #2612.
This commit is contained in:
antirez 2015-06-11 12:57:53 +02:00
parent a017b7ec0e
commit 8366907bed
1 changed files with 1 additions and 1 deletions
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src/replication.c
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@ -1384,7 +1384,7 @@ error:
int connectWithMaster(void) { int connectWithMaster(void) {
int fd; int fd;
fd = anetTcpNonBlockBindConnect(NULL, fd = anetTcpNonBlockBestEffortBindConnect(NULL,
server.masterhost,server.masterport,REDIS_BIND_ADDR); server.masterhost,server.masterport,REDIS_BIND_ADDR);
if (fd == -1) { if (fd == -1) {
redisLog(REDIS_WARNING,"Unable to connect to MASTER: %s", redisLog(REDIS_WARNING,"Unable to connect to MASTER: %s",