mysql报错

ainila

1. 环境说明
　　CentOS 6.5
　　[root@linux-mysql02 ~]# uname -a
　　Linux linux-mysql02 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
2. 问题描述
　　编译安装MySQL-5.6.37和二进制安装MySQL-5.6.37，在初始化mysql后，它会自动在MYSQL_BASE目录下（/u02/mysql-5.6.37）生成一个my.cnf的文件，当然，在/etc/目录下，它也会自动生成my.cnf，但是在启动mysql之前被mv为my.cnf.bak了，所以mysql的第一生效文件就变为了/u02/mysql-5.6.37/my.cnf。
　　在需要配置binlog时，打开my.cnf看到mysqld模块下只有这一句没有注释的，在网上找了下资料（https://segmentfault.com/a/1190000005936172）：
　　sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
　　稍微看了下这个模块的作用，才有了注释掉，然后重新写个my.cnf
　　[root@linux-mysql02 ~]# cat /etc/my.cnf
　　[client]
　　port            = 3306
　　socket          = /tmp/mysql.sock
　　[mysql]
　　no-auto-rehash
　　[mysqld]
　　user    = mysql
　　port    = 3306
　　#socket  = /tmp/mysql.sock
　　#basedir = /u02/mysql
　　datadir = /u02/mysql-5.6.37/data
　　open_files_limit    = 1024
　　back_log = 600
　　max_connections = 800
　　max_connect_errors = 3000
　　#table_cache = 614
　　external-locking = FALSE
　　max_allowed_packet =8M
　　sort_buffer_size = 1M
　　join_buffer_size = 1M
　　thread_cache_size = 100
　　thread_concurrency = 2
　　query_cache_size = 2M
　　query_cache_limit = 1M
　　query_cache_min_res_unit = 2k
　　#default_table_type = InnoDB
　　thread_stack = 192K
　　#transaction_isolation = READ-COMMITTED
　　tmp_table_size = 2M
　　max_heap_table_size = 2M
　　long_query_time = 1
　　#log_long_format
　　#log-error = /data/3306/error.log
　　##log-slow-queries = /data/3306/slow.log
　　##pid-file = /data/3306/mysql.pid
　　##log-bin = /tmp/mysql-bin
　　##relay-log = /data/3306/relay-bin
　　##relay-log-info-file = /data/3306/relay-log.info
　　binlog_cache_size = 1M
　　max_binlog_cache_size = 1M
　　max_binlog_size = 2M
　　expire_logs_days = 7
　　key_buffer_size = 16M
　　read_buffer_size = 1M
　　read_rnd_buffer_size = 1M
　　bulk_insert_buffer_size = 1M
　　#myisam_sort_buffer_size = 1M
　　#myisam_max_sort_file_size = 10G
　　#myisam_max_extra_sort_file_size = 10G
　　#myisam_repair_threads = 1
　　#myisam_recover
　　lower_case_table_names = 1
　　skip-name-resolve
　　slave-skip-errors = 1032,1062
　　replicate-ignore-db=mysql
　　server-id = 1
　　innodb_additional_mem_pool_size = 4M
　　innodb_buffer_pool_size = 32M
　　innodb_data_file_path = ibdata1:128M:autoextend
　　innodb_file_io_threads = 4
　　innodb_thread_concurrency = 8
　　innodb_flush_log_at_trx_commit = 2
　　innodb_log_buffer_size = 2M
　　innodb_log_file_size = 4M
　　innodb_log_files_in_group = 3
　　innodb_max_dirty_pages_pct = 90
　　innodb_lock_wait_timeout = 120
　　innodb_file_per_table = 0
　　[mysqldump]
　　quick
　　max_allowed_packet = 2M
　　[mysqld_safe]
　　log-error=/tmp/mysql_oldboy3306.err
　　##pid-file=/data/3306/mysqld.pid
　　保存退出，重新启动：
　　[root@linux-mysql02 data]# /etc/init.d/mysqld start
　　Starting MySQL. ERROR! The server quit without updating PID file (/u02/mysql-5.6.37/data/linux-mysql02.pid).
　　报错！！！
　　查看错误日志：
　　[root@linux-mysql02 data]# vim /tmp/mysql_oldboy3306.err

　　2017-08-12 18:13:18 28414 [ERROR] InnoDB: auto-extending data file ./ibdata1 is of a different>　　in the .cnf file: initial 8192 pages, max 0 (relevant if non-zero) pages!
　　2017-08-12 18:13:18 28414 [ERROR] InnoDB: Could not open or create the system tablespace. If you tried to add new data files to the system tablesp
　　ace, and it failed here, you should now edit innodb_data_file_path in my.cnf back to what it was, and remove the new ibdata files InnoDB created i
　　n this failed attempt. InnoDB only wrote those files full of zeros, but did not yet use them in any way. But be careful: do not remove old data fi
　　les which contain your precious data!
　　2017-08-12 18:13:18 28414 [ERROR] Plugin 'InnoDB' init function returned error.
　　2017-08-12 18:13:18 28414 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
　　2017-08-12 18:13:18 28414 [ERROR] Unknown/unsupported storage engine: InnoDB
　　2017-08-12 18:13:18 28414 [ERROR] Aborting
　　1、原来的ibdata1大小为：768*16/1024=12M
　　2、当前ibdata1被修改为：8192*16/1024=128M
　　innodb_data_file_path = ibdata1:128M:autoextend
　　发现我现在的大小就是128M，这边改为12M试试
　　[root@linux-mysql02 data]# /etc/init.d/mysqld start
　　Starting MySQL.. SUCCESS!
　　成功启动！！！