MySQL 5.6如何修改REDO日志的大小和个数
发布时间：2022-01-05 18:14:36 所属栏目：MySql教程 来源：互联网
导读：这篇文章给大家分享的是有关MySQL 5.6如何修改REDO日志的大小和个数的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。 一套线上环境的REDO日志的大小和格式设置的不合理，需要将日志大小修改成2G，个数改为5个。 # 修改参数文件 #
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这篇文章给大家分享的是有关MySQL 5.6如何修改REDO日志的大小和个数的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。 一套线上环境的REDO日志的大小和格式设置的不合理，需要将日志大小修改成2G，个数改为5个。 # 修改参数文件 # vi /etc/my_56.cnf innodb_log_file_size = 2G innodb_log_files_in_group = 5 # 重启数据库 # 启动的时候，查看错误日志，可以看到重新初始化了REDO日志 2018-05-28 09:40:54 25439 [Note] Plugin 'FEDERATED' is disabled. 2018-05-28 09:40:54 25439 [Note] InnoDB: Using atomics to ref count buffer pool pages 2018-05-28 09:40:54 25439 [Note] InnoDB: The InnoDB memory heap is disabled 2018-05-28 09:40:54 25439 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2018-05-28 09:40:54 25439 [Note] InnoDB: Memory barrier is not used 2018-05-28 09:40:54 25439 [Note] InnoDB: Compressed tables use zlib 1.2.3 2018-05-28 09:40:54 25439 [Note] InnoDB: Using Linux native AIO 2018-05-28 09:40:54 25439 [Note] InnoDB: Using CPU crc32 instructions 2018-05-28 09:40:54 25439 [Note] InnoDB: Initializing buffer pool, size = 1.0G 2018-05-28 09:40:55 25439 [Note] InnoDB: Completed initialization of buffer pool 2018-05-28 09:40:55 25439 [Note] InnoDB: Highest supported file format is Barracuda. 2018-05-28 09:40:55 25439 [Warning] InnoDB: Resizing redo log from 2*3072 to 5*131072 pages, LSN=19620839567 2018-05-28 09:40:55 25439 [Warning] InnoDB: Starting to delete and rewrite log files. 2018-05-28 09:40:55 25439 [Note] InnoDB: Setting log file ./ib_logfile101 size to 2048 MB InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-05-28 09:41:06 25439 [Note] InnoDB: Setting log file ./ib_logfile1 size to 2048 MB InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-05-28 09:41:16 25439 [Note] InnoDB: Setting log file ./ib_logfile2 size to 2048 MB InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-05-28 09:41:26 25439 [Note] InnoDB: Setting log file ./ib_logfile3 size to 2048 MB InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-05-28 09:41:36 25439 [Note] InnoDB: Setting log file ./ib_logfile4 size to 2048 MB InnoDB: Progress in MB: 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2018-05-28 09:41:46 25439 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0 2018-05-28 09:41:46 25439 [Warning] InnoDB: New log files created, LSN=19620839567 2018-05-28 09:41:46 25439 [Note] InnoDB: 128 rollback segment(s) are active. 2018-05-28 09:41:46 25439 [Note] InnoDB: Waiting for purge to start 2018-05-28 09:41:46 25439 [Note] InnoDB: 5.6.39 started; log sequence number 19620839567 2018-05-28 09:41:46 25439 [Note] Server hostname (bind-address): '*'; port: 3306 2018-05-28 09:41:46 25439 [Note] IPv6 is available. # 启动成功后，查看REDO日志的大小 mysql> show global variables like '%innodb_log_file_size%'; +----------------------+------------+ | Variable_name | Value | +----------------------+------------+ | innodb_log_file_size | 2147483648 | +----------------------+------------+ 1 row in set (0.01 sec) mysql> show global variables like '%innodb_log_files_in_group%'; +---------------------------+-------+ | Variable_name | Value | +---------------------------+-------+ | innodb_log_files_in_group | 5 | +---------------------------+-------+ 1 row in set (0.01 sec) 感谢各位的阅读！关于“MySQL 5.6如何修改REDO日志的大小和个数”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，让大家可以学到更多知识，如果觉得文章不错，可以把它分享出去让更多的人看到吧！ （编辑：财气旺网 - 财气网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
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