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Two Versions Of Mysql On Same Unix Box


I have mysql 3.23.58 version running on my unix box. I installed a new application on it which need mysql version > 4.0 so I thought of having two mysql versions running on the same unix box. I have first installation in /usr/local/mysql and I untared the new version in /var/local/mysql-standard-4.1.18-pc-linux-gnu-i686-glibc23.

I am following instructions given in http://dev.mysql.com/doc/refman/4.1/en/multiple-servers.html I also created a empty file and named it as mysql.sock.new and stored it in /var/local. When I try to start this new version from /var/local/mysql-standard-4.1.18-pc-linux-gnu-i686-glibc23 using ./bin/mysqld_safe --datadir=/var/local/mysql-standard-4.1.18-pc-linux-gnu-i686-glibc23/data & it says "A mysqld process already exists". Please tell me where I am going wrong and how to configure it properly?




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