How to modify the default connections of MySQL5.0 in Linux _ MySQL

In Linux, how does one modify the default connections of MySQL5.0? the server crashes twice, but no reason is found. I saw an error message email sent by the forum today, remembering that it may be caused by the default connections of mysql, check it out. my god, the default number of connections is only 100. how can this problem be solved? I found some information on the Internet for a long time and said I had to modify my account. for cnf, it is said to modify safe_mysqld and try again. The former is useless,

The latter file cannot be found: the original version is different from the current version.

To put it bluntly, I will take mysql 5.0.33 in centos 4.4 as an example:

Vi/usr/local/mysql/bin/mysqld_safe

Find safe_mysqld and edit it. find the two lines started by mysqld and add the following parameters:

-O max_connections = 1500

The specific point is the following position:

Note in red:

Then $ NOHUP_NICENESS $ ledir/$ MYSQLD

$ Defaults -- basedir = $ MY_BASEDIR_VERSION

-- Datadir = $ DATADIR $ USER_OPTION

-- Pid-file = $ pid_file

-- Skip-external-locking

-O max_connections = 1500

>>$ Err_log 2> & 1 else

Eval "$ NOHUP_NICENESS $ ledir/$ MYSQLD

$ Defaults -- basedir = $ MY_BASEDIR_VERSION

-- Datadir = $ DATADIR $ USER_OPTION

-- Pid-file = $ pid_file

-- Skip-external-locking $ args

-O max_connections = 1500>

$ Err_log 2> & 1"

Save.

# Service mysqld restart

#/Usr/local/mysql/bin/mysqladmin-uroot-p variables

Enter the password of the root database account.

Max_connections 1500 indicates that the new change has taken effect.

Another method is as follows:

Modify the original code:

Unlock the original MySQL code and go to the SQL directory to modify mysqld. cc. find the following line:

{"Max_connections", OPT_MAX_CONNECTIONS,

"The number of simultaneous clients allowed.", (gptr *) & max_connections,

(Gptr *) & max_connections, 0, GET_ULONG, REQUIRED_ARG, 100, 1, 16384, 0, 1,

0 },

Change it:

{"Max_connections", OPT_MAX_CONNECTIONS,

"The number of simultaneous clients allowed.", (gptr *) & max_connections,

(Gptr *) & max_connections, 0, GET_ULONG, REQUIRED_ARG, 1500, 1, 16384, 0, 1,

0 },

Save the disk and exit./configure; make install to achieve the same effect.