darkit

1. [root@ZiShuo ~]# cat /etc/my.cnf
   
2. # mysql conf /etc/my.cnf
   
3. # Created by http://www.wdlinux.cn
   
4. # Last Updated 2010.06.01
   
5. 
   
6. [client]
   
7. port                = 3306
   
8. socket                = /tmp/mysql.sock
   
9. [mysqld]
   
10. port                = 3306
    
11. socket                = /tmp/mysql.sock
    
12. skip-external-locking
    
13. key_buffer_size = 128M
    
14. max_allowed_packet = 1M
    
15. table_open_cache = 256
    
16. sort_buffer_size = 1M
    
17. read_buffer_size = 1M
    
18. read_rnd_buffer_size = 2M
    
19. myisam_sort_buffer_size = 8M
    
20. thread_cache_size = 8
    
21. query_cache_size= 16M
    
22. thread_concurrency = 8
    
23. max_connections = 300
    
24. wait_timeout = 30
    
25. interactive_timeout = 30
    
26. max_connect_errors = 9
    
27. long_query_time = 1
    
28. tmp_table_size = 16M
    
29. #log-bin=mysql-bin
    
30. #binlog_format=mixed
    
31. #server-id        = 1
    
32. [mysqldump]
    
33. quick
    
34. max_allowed_packet = 8M
    
35. [mysql]
    
36. no-auto-rehash
    
37. [myisamchk]
    
38. key_buffer_size = 12M
    
39. sort_buffer_size = 1M
    
40. read_buffer = 1M
    
41. write_buffer = 1M
    
42. [mysqlhotcopy]
    
43. interactive-timeout

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这是怎么回事，mysql启动不起来
cp: cannot stat `/www/wdlinux/mysql_bk/*': No such file or directory
ERROR! MySQL server PID file could not be found!
Starting MySQL..... ERROR! The server quit without updating PID file (/www/wdlinux/mysql-5.5.27/data/ZiShuo.Net.pid).