求助设置mysqld-slow-query.log出错

lingy

这是我的mysql log

070831 23:56:29  mysqld started
/usr/libexec/mysqld: File '/var/log/mysqld-slow-query.log' not found (Errcode: 13)
070831 23:56:29 [ERROR] Could not use /var/log/mysqld-slow-query.log for logging (error 13). Turning logging off for the whole duration of the MySQL server process. To turn it on again: fix the cause, shutdown the MySQL server and restart it.
070831 23:56:29  InnoDB: Started; log sequence number 0 766160961
/usr/libexec/mysqld: ready for connections.
Version: '4.1.20-log'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  Source distribution

mysql是centos 4自带的

my.cnf设置
[client]
#password       = your_password
port            = 3306
socket          = /var/lib/mysql/mysql.sock

[mysqld]
port            = 3306
socket          = /var/lib/mysql/mysql.sock
set-variable = ft_min_word_len=2
skip-locking
key_buffer = 400M
max_allowed_packet = 1M
max_connections = 2048
table_cache = 1024
sort_buffer_size = 64M
read_buffer_size = 16M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache = 8
query_cache_size = 32M

log-slow-queries = /var/log/mysqld-slow-query.log
long-query-time = 5
log-long-format
log-queries-not-using-indexes

# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 8

back_log=500
interactive_timeout=7200
thread_cache_size=80
wait_timeout=7200
#key_buffer_size

请大侠帮忙看看为啥产生不了log

showsa

权限不够

lingy

我自己建立了个 /var/log/mysqld-slow-query.log
改成777也不行，需要什么样的权限

lingy

现在改成
-rwxrwxrwt  1 mysql    mysql                0 Aug 31 17:28 mysqld-slow-query.log

也不行

yejr

改完权限后重启mysqld也是报同样的错误？

lingy

我改了mysqld-slow-query.log权限，重启mysqld也不行，就是一楼的错