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I'm using memcached-1.4.5-1.el5 & memcache-2.2.6 as php extension and memcached-1.2.8-repcached-2.2.1 for replication.

The above packages are installed on 4 servers. How can I do the following?

Server1 : Memcache Master

Server2,3,4 : Memcache Slave

And can I run memcached-repcached and memcache on the same default port 11211?

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Why you need to set up master->slaves ? – mezgani Jan 30 at 10:23
@mezgani I need it for replication process, Any thing which are written on master server is replicated automatically on slaves servers. – Linuxstartway Jan 30 at 14:16
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Have a look at this page. It explains how to setup master-master replication. The memcached-repcached add two more options to the official memcached options which are:

-x < ip_addr > hostname or IP address of the master replication server
-X < num > TCP port number of the master (default: 11212)

It should be easier to setup master-slave replication if you want.

For your question about running memcached and memcached-repcached on the same port. You don't need to run the original memcached daemon and modified memcached-repcached daemon at the same time. If you want to use the replication feature, you don't need to run the original memcached daemon.

As a general rule, it is not allowed to run more than one service (daemon) on any specific port number on the same host.

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Master Server IP : 10.10.10.1 ..I put the following config for memcache repcache config ( on Slave Servers ) in /etc/sysconfig/repconfig PORT="11211" USER="memcached" MAXCONN="1024" CACHESIZE="256" OPTIONS="-x 10.10.10.1" Is it right .? and does i need to put the same config in master server with removing of OPTIONS directive .? – Linuxstartway Jan 28 at 11:14
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