I need to add to my previous post -- You asked about using the SAME operating system socket as well as using separate addresses with the same port number (different IP sockets)
My answer to that is NOT ON YOUR LIFE. Think of the chaos. If one client tried to connect to an OS socket that 3 different servers were listening to... Which one gets the connection? Which one validates the client? If for some reason the client *were* able to validate against all three servers at the same time, how could it sort out the 3 different responses to a query? NO each server must have it's own socket. It doesn't matter if we are discussing "IP sockets" or "OS sockets" the answer is still the same. Sorry for the previous oversight, Shawn Green Database Administrator Unimin Corporation - Spruce Pine "Sanjeev Sagar" <[EMAIL PROTECTED]> wrote on 09/08/2004 05:04:38 PM: > > Hello All, > > MySQL : Standar Binary 4.0.20 > O/S : Red Hat Linux release 9 (Shrike) > Linux 2.4.20-31.9smp #1 SMP Tue Apr 13 17:40:10 EDT 2004 i686 i686 > i386 GNU/Linux > > I already have setup of Three Multiple MySQL servers listening on > different ports and sockets on same machine > > Option File: > > [mysqld1] > server-id =1 > port=3306 > socket=/tmp/mysql.sock > datadir=data1 > > [mysqld2] > server-id=2 > port=3307 > socket=/tmp/mysql.sock2 > datadir=data2 > > [mysqld3] > server-id=3 > port=3308 > socket=/tmp/mysql.sock3 > datadir=data3 > > All three servers started with no problem. Question is if I don't > want to use different ports or scokets, can I use the different I.P. > Addresses on same machine for three servers with same default port or socket. > > /etc/hosts file > =============== > > 127.0.0.100 s1 > 127.0.0.101 s2 > 127.0.0.102 s3 > > > Can I start three servers on same port (3306), same socket > (/tmp/mysql.sock) on same machine by using above IP addresses? If > yes then HOW? > > Can I use the replication in b/w them? keeping datadir and log-bin > directory differtent is not a problem. > > Appreciate it. >
