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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