前言 有了keepalived和mysql upgrade的技术作基础，可以结合两者完成无逢升级 下面分享一下我的 Best Practice Of Mysql Migration ---- 概要 --...-- 准备工作 下面步骤最好作为准备工作，提前完成，这样可以更有效进行切换，和减少窗口期 挂载NFS 安装软件包的收集(mysql,xtrabackup,keepalived) 安装keepalived
myisam_recover_options [testuser@slave01 etc]$ innodb_additional_mem_pool_size 也已经被弃用了,如果有要注释掉 ---- 将zabbit加入mysql...组以方便监控 [root@new-master mysql]# vim /etc/group [root@new-master mysql]# id zabbix uid=496(zabbix) gid...=493(zabbix) groups=493(zabbix),492(mysql) [root@new-master mysql]# /etc/init.d/zabbix-agent restart...]# ---------- [root@zabbix-server ~]# zabbix_get -s new-master -p 10050 -k "mysql.slowlog[100,/var/lib.../mysql/new-master-slow.log]" 2.98465 [root@zabbix-server ~]#
修改zabbix统计数据过期时间 [root@new-master mysql]# vim /var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh...[root@new-master mysql]# grep 120 /var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh if...[ `expr $TIMENOW - $TIMEFLM` -gt 120 ]; then [root@new-master mysql]# 修改之前是300,也就是5分钟,这个监控粒度太粗,所以改为...-4.013-3.el6.x86_64 has missing requires of libmysqlclient.so.16()(64bit) perl-DBD-MySQL-4.013-3.el6....x86_64 has missing requires of libmysqlclient.so.16(libmysqlclient_16)(64bit) php-mysql-5.3.3-40.el6_
新版master上安装并启动keepalived 安装并启动keepalived [root@new-master ~]# yum -y install ke...
innobackupex: Backup created in directory '/data/nfs/test_full_backup/2015-12-09_00-53-03' innobackupex: MySQL...binlog position: filename 'mysql-bin.000004', position 8299670 151209 02:06:09 innobackupex: Connection
[root@slave01 data]# cd /var/lib/mysql/ [root@slave01 mysql]# ls livedb slave01-relay-bin.000308...javadb ijavadb mysql-bin.000154 mysql-bin.000159 relay-log.info backup-my.cnf slave01-relay-bin....000309 ibdata1 wavedb mysql-bin.000155 mysql-bin.000160 functiondb mysqltest_his slave01...-relay-bin.index ib_logfile0 master.info mysql-bin.000156 mysql-bin.index test mysqltestt_db...ib_logfile2 mysql mysql-bin.000158 keydb [root@slave01 mysql]# rm -rf * [root@slave01 mysql
]# chown -R mysql.mysql /var/lib/mysql/ [root@slave02 mysql]# ll total 5916780 drwx------ 2 mysql mysql...---- 2 mysql mysql 36864 Dec 9 03:57 mysqltestt_db drwx------ 2 mysql mysql 4096 Dec 9 03...drwx------ 2 mysql mysql 4096 Dec 9 02:52 ijavadb drwx------ 2 mysql mysql 12288 Dec 9...4096 Dec 9 02:45 mysql drwx------ 2 mysql mysql 4096 Dec 9 02:49 testdb drwx------ 2 mysql mysql...mysql mysql 20480 Dec 9 03:08 /data/mysql/ [root@slave02 mysql]#
要确保mysql 数据库的 datadir是清空的，否则会报错 [root@slave02 data]# cat restore.log nohup: ignoring input Warning:.../usr/bin/innobackupex version 2.3.2 based on MySQL server 5.6.24 Linux (x86_64) (revision id: 306a2e0...) Original data directory /var/lib/mysql is not empty!...) Original data directory /var/lib/mysql is not empty!...开头的文件 如： .bash_history .lesshst .mysql_history .viminfo 要指明删，如 rm -rf .bash_history .lesshst .mysql_history
内容 实现简单的秒杀页面（显示当前秒杀活动状态）和秒杀接口，不需要考虑下订单和退货流程。...秒杀接口要求 时间到了才能开始秒杀 不能超买：1个用户只能秒杀1次 不能超卖 在缓存崩溃重启的情况也不能出现超买和超卖的情况 测试 功能正常 1个用户发起100个并发测试 随机用户（userId：rand...(1, 1000000000)) 请求，100个并发秒杀，最先完成秒杀1000个商品的活动 数据表结构如下 用户秒杀成功记录 log CREATE TABLE `log` ( `id` int(11...UNIQUE KEY `eventId` (`eventId`,`userId`) ) ENGINE=InnoDB AUTO_INCREMENT=4353 DEFAULT CHARSET=utf8; 秒杀活动...'port']); } else { return 'Configuration does not exist'; } } /** * 连接mysql
启动mysql并且开启同步 [root@slave02 mysql]# mysql -u root -p Enter password: Welcome to the MySQL monitor....Your MySQL connection id is 1 Server version: 5.6.27-75.0-log Percona Server (GPL), Release 75.0, Revision...mysql> show slave status\G Empty set (0.00 sec) mysql> CHANGE MASTER TO MASTER_HOST='192.168.66.100'...=8299670; Query OK, 0 rows affected, 2 warnings (0.01 sec) mysql> show slave status\G **************...hostname slave02 mysql>
更新slave mysql版本 [root@slave02 src]# rpm -e Percona-Server-client-51-5.1.73-rel14.11.603.rhel6.x86_64...rhel6.x86_64 Percona-Server-shared-51-5.1.73-rel14.11.603.rhel6.x86_64 error: Failed dependencies: mysql...-4.013-3.el6.x86_64 libmysqlclient.so.16()(64bit) is needed by (installed) php-mysql-5.3.3-40.el6_6....-4.013-3.el6.x86_64 libmysqlclient.so.16(libmysqlclient_16)(64bit) is needed by (installed) php-mysql...SONAME 'libfnv1a_udf.so'" mysql -e "CREATE FUNCTION fnv_64 RETURNS INTEGER SONAME 'libfnv_udf.so'" mysql
/tmp/old /tmp/new id zabbix /etc/init.d/zabbix-agent restart zabbix_get -s new-master -p 10050 -k "mysql.slowlog...[100,/var/lib/mysql/new-master-slow.log]" vim /var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh...grep 120 /var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh yum install libev rpm -e xtrabackup...test_full_backup/2015-12-09_00-53-03/ >> restore.log 2>&1 & tail -f restore.log watch -n 2 du -sh /data/mysql.../ cat xtrabackup_binlog_pos_innodb chown -R mysql.mysql /var/lib/mysql/ 原文地址
启动mysql并且开启同步 [root@slave02 mysql]# mysql -u root -p Enter password: Welcome to the MySQL monitor....Your MySQL connection id is 1 Server version: 5.6.27-75.0-log Percona Server (GPL), Release 75.0, Revision...mysql> show slave status\G Empty set (0.00 sec) mysql> CHANGE MASTER TO MASTER_HOST='192.168.66.100'...[100,/var/lib/mysql/new-master-slow.log]" vim /var/lib/zabbix/percona/scripts/get_mysql_stats_wrapper.sh.../ cat xtrabackup_binlog_pos_innodb chown -R mysql.mysql /var/lib/mysql/ 原文地址
观察到数据库的连接比如 :3306 在数据库里可以使用 show processlist 来看连接 (必要的时候可以停止原master数据库) [root@origin-master ~]# /etc/init.d/mysql...stop Shutting down MySQL........................................[ OK ].
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