我正在尝试启用slow_query_log。我使用WinSCP从服务器下载了my.cnf文件,并添加了启用slow_query_log的代码。
slow_query_log = ON
slow_query_log_file = /var/log/mysql_slow.log
当我重新启动服务器时,我收到此错误mysql has failed, please contact the sysadmin (result was "mysql is not running").
我在这里添加my.cnf文件
我也试过了slow_query_log = 1
。但得到同样的错误。当我删除我添加的代码错误消失了。任何人请帮助我...
my.cnf
[mysqld]
datadir=/home/mysql/
tmpdir=/home/mysqltmp
#max_connections = 175 #was 175
max_connections = 80
#max_connect_errors = 350 #was 250
max_connect_errors = 250
safe-show-database
skip-locking
key_buffer = 1024M # was 128M
max_allowed_packet = 6M
myisam_sort_buffer_size = 64M
#old settings, for 900 ish max maxconn
#sort_buffer_size = 32M
#read_buffer_size = 32M
#read_rnd_buffer_size = 32M
sort_buffer_size = 5M
read_buffer_size = 5M
read_rnd_buffer_size = 5M
query_cache_size= 1024M
query_cache_limit= 16M
max_heap_table_size = 128M
tmp_table_size = 128M
thread_concurrency = 16
wait_timeout = 10
innodb_file_per_table
innodb_log_file_size = 10485760
open_files_limit = 8192
low_priority_updates = 1
slow_query_log = ON
slow_query_log_file = /var/log/mysql_slow.log
# who set these? these are NOT memory settings, but rather integer settings.
#table_cache = 1024M
#thread_cache_size = 8M
table_cache = 512
thread_cache_size = 8
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[isamchk]
key_buffer = 128M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 128M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M
答案 0 :(得分:0)
检查所有权为mysql.mysql和文件/var/log/mysql_slow.log
ls -al /var/log/mysql_slow.log
答案 1 :(得分:0)
在/ var / log&中创建文件mysql_slow.log更改文件的所有权:
chown mysql.mysql -R /var/log/mysql_slow.log
值(1或ON)应该适用于慢查询日志。
另外,你是否使用常规声明?