主機(jī)名先修改成MySQL 以后遷移完畢再修改成想要的主機(jī)名 否則后面會(huì)出錯(cuò)mysql.pid hostnamectl set-hostname mysql [root@mysql software]# rpm -ivh MySQL-server-5.6.29-1.rhel5.x86_64.rpm warning: MySQL-server-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY error: Failed dependencies: libaio.so.1()(64bit) is needed by MySQL-server-5.6.29-1.rhel5.x86_64 libaio.so.1(LIBAIO_0.1)(64bit) is needed by MySQL-server-5.6.29-1.rhel5.x86_64 libaio.so.1(LIBAIO_0.4)(64bit) is needed by MySQL-server-5.6.29-1.rhel5.x86_64 解決辦法: 所以提前做 [root@mysql software]# rpm -ivh MySQL-server-5.6.29-1.rhel5.x86_64.rpm warning: MySQL-server-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY error: Failed dependencies: libaio.so.1()(64bit) is needed by MySQL-server-5.6.29-1.rhel5.x86_64 libaio.so.1(LIBAIO_0.1)(64bit) is needed by MySQL-server-5.6.29-1.rhel5.x86_64 libaio.so.1(LIBAIO_0.4)(64bit) is needed by MySQL-server-5.6.29-1.rhel5.x86_64 [root@mysql software]# rpm -ivh http://mirror.centos.org/centos/6/os/x86_64/Packages/libaio-0.3.107-10.el6.x86_64.rpm Retrieving http://mirror.centos.org/centos/6/os/x86_64/Packages/libaio-0.3.107-10.el6.x86_64.rpm warning: /var/tmp/rpm-tmp.SWTMoJ: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEY Preparing... ################################# [100%] Updating / installing... 1:libaio-0.3.107-10.el6 ################################# [100%] [root@localhost ~]# rpm -qa mariadb* mariadb-libs-5.5.44-2.el7.centos.x86_64 [root@localhost ~]# yum remove mariadb-libs-5.5.44-2.el7.centos.x86_64 [root@localhost ~]#yum install -y perl perl-devel perl-Module-Install.noarch [root@localhost ~]# rpm -ivh MySQL-devel-5.6.29-1.rhel5.x86_64.rpm warning: MySQL-devel-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] package MySQL-devel-5.6.29-1.rhel5.x86_64 is already installed [root@localhost ~]# rpm -ivh MySQL-client-5.6.29-1.rhel5.x86_64.rpm warning: MySQL-client-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] package MySQL-client-5.6.29-1.rhel5.x86_64 is already installed [root@localhost ~]# rpm -ivh MySQL-server-5.6.29-1.rhel5.x86_64.rpm warning: MySQL-server-5.6.29-1.rhel5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] package MySQL-server-5.6.29-1.rhel5.x86_64 is already installed [root@localhost ~]# You will find that password in '/root/.mysql_secret'. [root@linux-node2 ~]# service mysql start Starting MySQL. SUCCESS! [root@linux-node2 ~]# [root@linux-node2 ~]# /usr/bin/mysql_secure_installation #初始化密碼 設(shè)置自己密碼
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需要把默認(rèn) 的 --datadir 的 那個(gè)mysql拷貝到 /data 下 并賦予mysql的權(quán)限
[root@linux-node2 ~]# ps -ef |grep mysql
root 12365 1 0 23:28 pts/1 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/data/mysql --pid-file=/var/lib/mysql/mysql.pid
mysql 13171 12365 0 23:28 pts/1 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/data/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/data/mysql/mysql-error.log --open-files-limit=65535 --pid-file=/var/lib/mysql/mysql.pid --socket=/data/socket/mysql.sock --port=3306
root 13208 2804 0 23:33 pts/1 00:00:00 grep --color=auto mysql
[root@linux-node2 ~]#
看一下my.cnf
[root@linux-node2 ~]# cat /etc/my.cnf [client] port = 3306 socket = /data/socket/mysql.sock default-character-set = utf8 [mysqld] port = 3306 character-set-server=utf8 socket = /data/socket/mysql.sock #basedir = /usr/local/mysql datadir = /data/mysql pid-file = /var/lib/mysql/mysql.pid user = mysql bind-address = 0.0.0.0 server-id = 1 skip-name-resolve #skip-networking back_log = 600 max_connections = 1000 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_size = 8M query_cache_limit = 2M ft_min_word_len = 4 log_bin = mysql-bin binlog_format = mixed expire_logs_days = 30 log_error = /data/mysql/mysql-error.log slow_query_log = 1 long_query_time = 1 slow_query_log_file = /data/mysql/mysql-slow.log performance_schema = 0 explicit_defaults_for_timestamp #lower_case_table_names = 1 skip-external-locking default_storage_engine = InnoDB #default-storage-engine = MyISAM innodb_file_per_table = 1 innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 0 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 10G myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 innodb_file_per_table = ON sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M [root@linux-node2 ~]#
修改socket的配置可以先停止 在啟動(dòng) 否則 mysql不知道socket的位置

備份數(shù)據(jù)庫(kù)
mysqldump -uroot -p123456 -B mysql -F -R --master-data=2 --events --single-transaction |gzip >/opt/mysql.20170715.gz
mysqldump -uroot -p123456 -B mysql -F -R --master-data=2 --events --single-transaction >/opt/mysql.sql
gzip格式解壓
gzip -d 文件名
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