MySQL中my.cnf配置文件的示例分析

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1. [client]
   

2. default-character-set         = utf8mb4
   

3. port                          = PORT
   

4. socket                        = /srv/myPORT/run/mysql.sock
   

5. 
   

6. [mysqld]
   

7. user                            = mysql
   

8. port                          = PORT
   

9. extra-port                    = 1PORT
   

10. character_set_server            = utf8mb4
    

11. server_id                     = SERVER_ID
    

12. socket                        = /srv/myPORT/run/mysql.sock
    

13. basedir                       = /opt/percona-server
    

14. datadir                       = /srv/myPORT/data
    

15. log-error                     = /srv/myPORT/log/alert.log
    

16. pid-file                      = /srv/myPORT/run/mysql.pid
    

17. log_slave_updates             = 1
    

18. log-bin                       = /srv/myPORT/log/mysql-bin
    

19. binlog_format                 = row
    

20. binlog_cache_size             = 2M
    

21. max_binlog_cache_size         = 4G
    

22. max_binlog_size               = 1G
    

23. expire_logs_days              = 7
    

24. relay-log                     = /srv/myPORT/log/relay-bin
    

25. relay-log-info-file           = /srv/myPORT/log/relay-log.info
    

26. relay-log-index               = /srv/myPORT/log/relay-log.index
    

27. master-info-file              = /srv/myPORT/log/master.info
    

28. relay-log-recovery            = true
    

29. sync-relay-log-info           = 1
    

30. explicit_defaults_for_timestamp
    

31. key_buffer_size               = 2M
    

32. sort_buffer_size              = 2M
    

33. read_buffer_size              = 2M
    

34. read_rnd_buffer_size          = 16M
    

35. join_buffer_size              = 2M
    

36. thread_cache_size             = 1024
    

37. query_cache_size              = 1M
    

38. query_cache_limit             = 1M
    

39. query_cache_min_res_unit      = 2k
    

40. table_open_cache              = 2048
    

41. open_files_limit              = 65535
    

42. back_log                      = 3000
    

43. max_connections               = 4000
    

44. max_user_connections          = 2500
    

45. max_connect_errors            = 100
    

46. max_allowed_packet            = 512M
    

47. thread_stack                  = 192k
    

48. default-storage-engine        = INNODB
    

49. transaction_isolation         = READ-COMMITTED
    

50. tmp_table_size                = 16M
    

51. max_heap_table_size           = 64M
    

52. bulk_insert_buffer_size       = 64M
    

53. long_query_time               = 0.5
    

54. slow_query_log                = on
    

55. slow_query_log_file              = /srv/myPORT/log/slow.log
    

56. skip-name-resolve
    

57. innodb_buffer_pool_size       = 10G
    

58. innodb_data_file_path          = ibdata1:2G:autoextend
    

59. innodb_file_io_threads        = 24
    

60. innodb_purge_threads          = 12
    

61. innodb_read_io_threads        = 24
    

62. innodb_write_io_threads       = 24
    

63. innodb_thread_concurrency     = 24
    

64. innodb_buffer_pool_instances  = 8
    

65. innodb_flush_log_at_trx_commit= 1
    

66. innodb_log_buffer_size        = 16M
    

67. innodb_log_file_size          = 2G
    

68. innodb_log_files_in_group     = 2
    

69. innodb_max_dirty_pages_pct    = 75
    

70. innodb_lock_wait_timeout      = 50
    

71. innodb_file_per_table         = 1
    

72. thread_handling               = pool-of-threads
    

73. thread_pool_idle_timeout      = 180
    

74. thread_pool_max_threads       = 5000
    

75. thread_pool_size                = 24
    

76. thread_pool_oversubscribe     = 10
    

77. thread_pool_stall_limit       = 500
    

78. [mysqldump]
    

79. quick
    

80. max_allow_packet              = 64M
    

81. [mysql]
    

82. no-auto-rehash
    

83. [mysqlhotcopy]
    

84. interactive-timeout

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