服务器不重启的情况下定时自动重启apache及mysql服务,其实也大同小异。具体步骤如下:
一、每天的12点及16点重启apache及mysql服务
[root@www bin]# cd /opt/
[root@www opt]# vim reboot.txt
在reboot.txt.txt文件中输入下面的内容后保存
0 12 * * * service httpd restart
0 12 * * * service mysqld restart
0 16 * * * service httpd restart
0 16 * * * service mysqld restart
二、把新建的文件加入到cron服务中
[root@www opt]# crontab reboot.txt
[root@www opt]# crontab -l
0 12 * * * service httpd restart
0 12 * * * service mysqld restart
0 16 * * * service httpd restart
0 16 * * * service mysqld restart
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-locking
#skip-networking
safe-show-database
query_cache_limit=1M
query_cache_size=64M ## 32MB for every 1GB of RAM
query_cache_type=1
max_user_connections=200
max_connections=500
interactive_timeout=10
wait_timeout=20
connect_timeout=20
thread_cache_size=128
key_buffer=128M ## 64MB for every 1GB of RAM
join_buffer=1M
max_connect_errors=20
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=2M ## 1MB for every 1GB of RAM
read_buffer_size=2M ## 1MB for every 1GB of RAM
read_rnd_buffer_size=2M  ## 1MB for every 1GB of RAM
thread_concurrency=2 ## Number of CPUs x 2
myisam_sort_buffer_size=64M
server-id=1
log_slow_queries=/var/log/mysql-slow-queries.log
long_query_time=2
collation-server=latin1_general_ci
old-passwords

[mysql.server]
user=mysql
basedir=/var/lib

[safe_mysqld]
err-log=/var/log/mysqld.log
pid-file=/var/lib/mysql/mysql.pid
open_files_limit=8192

[mysqldump]
quick
max_allowed_packet=16M

[mysql]
no-auto-rehash
#safe-updates

[isamchk]
key_buffer=32M
sort_buffer=32M
read_buffer=16M
write_buffer=16M

[myisamchk]
key_buffer=32M
sort_buffer=32M
read_buffer=16M
write_buffer=16M

[mysqlhotcopy]
interactive-timeout
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