未加星标

mysqldump快速搭建特定库主从架构(GTID)

字体大小 | |
[数据库(mysql) 所属分类 数据库(mysql) | 发布者 店小二05 | 时间 2016 | 作者 红领巾 ] 0人收藏点击收藏

对于数据总量不大的mysql数据库搭建主从架构,借助mysqldump工具来实现是不错的选择,再结合MySQL GTID特性,使得高可用轻而易举。本文是基于mysqldump搭建gtid主从的补充。主要是介绍基于多库级别实现GTID主从,即非整个实例级别。下面是本文的具体描述及示例。

相关知识点参考
基于mysqldump搭建gtid主从
MySQL GTID 错误处理汇总
配置MySQL GTID 主从复制
使用mysqldump导出数据库
一、mysqldump时GTID参数
# mysqldump --help|grep gtid-purged -A8
--set-gtid-purged[=name] Add 'SET @@GLOBAL.GTID_PURGED' to the output. Possible values for this option are ON, OFF and AUTO. If ON is used and GTIDs are not enabled on the server, an error is generated. If OFF is used, this option does nothing. If AUTO is used and GTIDs are enabled on the server, 'SET @@GLOBAL.GTID_PURGED' is added to the output. If GTIDs are disabled, AUTO does nothing. If no value is supplied then the default (AUTO) value will be considered.
这个参数用于控制在导出数据库时是否导出GTID,针对已开启GTID的mysql实例
就是说导出的数据中已经包含了这些GTID,因此在从库开启从之后需要被跳过
缺省值为AUTO,如果导出时指定为OFF,则在从库开启从之后会收到error 1236
二、主从环境配置
主服务器:192.168.1.233:3306 server_id : 233
从服务器:192.168.1.245:3306 server_id : 245
--在主库端创建复制用户
([email protected])[(none)]> GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'repl'@'%' IDENTIFIED BY '123456';
-- 查看主库端的配置文件
([email protected])[(none)]>system grep -v ^# /etc/my.cnf
[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
basedir = /usr/local/mysql
datadir = /data
server_id=233
gtid_mode=on
enforce_gtid_consistency=on
log_bin=node233-binlog
log-slave-updates=1
binlog_format=row
report_host=Master
report_port=3306
master-info-repository = TABLE
relay-log-info-repository = TABLE
replicate-do-db=tempdb
replicate-do-db=testdb
skip_slave_start=1 ###该参数在启动DB时不会自启动slave,需要手动启动
-- 查看从库端的配置文件
([email protected])[(none)]>system grep -v ^# /etc/my.cnf
[mysqld]
basedir = /usr/local/mysql
datadir = /data
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
server_id=245
gtid_mode=on
enforce_gtid_consistency=on
log_bin=node245-binlog
log-slave-updates=1
binlog_format=row
report_host=Slave
report_port=3306
master-info-repository = TABLE
relay-log-info-repository = TABLE
replicate-do-db=tempdb
replicate-do-db=testdb
skip_slave_start=1 ###该参数在启动DB时不会自启动slave,需要手动启动
三、主库端的设置
演示环境
([email protected])[(none)]>show variables like 'version';
+---------------+------------+
| Variable_name | Value |
+---------------+------------+
| version | 5.7.12-log |
+---------------+------------+
--创建需要复制的数据库tempdb与testdb
([email protected])[(none)]>create database tempdb;
([email protected])[(none)]>use tempdb;
([email protected])[tempdb]>create table tb(`userId` int);
([email protected])[(none)]>create database testdb;
([email protected])[(none)]>use testdb;
([email protected])[testdb]>create table tb(`userId` int);
--主库端执行sql,使用如下脚本
# more insert_id.sh
#/bin/sh
cnt=1
while [ $cnt -le 10000 ]
do mysql -uroot -ppass -e "insert into tempdb.tb(userId) values($cnt); insert into testdb.tb(userId) values($cnt)" let cnt=$cnt+1 sleep 1 echo "Insert $cnt"
done
--执行脚本
# ./insert_id.sh
mysql: [Warning] Using a password on the command line interface can be insecure.
Insert 2
mysql: [Warning] Using a password on the command line interface can be insecure.
Insert 3
mysql: [Warning] Using a password on the command line interface can be insecure.
Insert 4 ...........
--dump导出库文件
# mysqldump --single-transaction --triggers --routines --events --user=root --password=pass \
> --databases tempdb testdb >/tmp/multidb.sql
--dump文件的内容
# more /tmp/multidb.sql
-- MySQL dump 10.13 Distrib 5.7.12, for linux-glibc2.5 (x86_64)
--
-- Host: localhost Database: tempdb
-- ------------------------------------------------------
-- Server version 5.7.12-log
-- 非重要的信息省略
SET @MYSQLDUMP_TEMP_LOG_BIN = @@SESSION.SQL_LOG_BIN;
SET @@SESSION.SQL_LOG_BIN= 0;
--
-- GTID state at the beginning of the backup
--
--GTID信息,重要,用于主从复制跳过)
SET @@GLOBAL.GTID_PURGED='1b64c25d-8d2b-11e6-9ac0-000c29b82d0d:1-2318';
--
-- Current Database: `tempdb`
--
CREATE DATABASE /*!32312 IF NOT EXISTS*/ `tempdb` /*!40100 DEFAULT CHARACTER SET latin1 */;
USE `tempdb`;
--
-- Table structure for table `tb`
--
DROP TABLE IF EXISTS `tb`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `tb` (
`userId` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
/*!40101 SET character_set_client = @saved_cs_client */;
--
-- Dumping data for table `tb`
--
LOCK TABLES `tb` WRITE;
/*!40000 ALTER TABLE `tb` DISABLE KEYS */;
INSERT INTO `tb` VALUES (1),(2),(3),(4),(5);
/*!40000 ALTER TABLE `tb` ENABLE KEYS */;
UNLOCK TABLES;
--
-- Dumping events for database 'tempdb'
--
--
-- Dumping routines for database 'tempdb'
--
--
-- Current Database: `testdb`
--
CREATE DATABASE /*!32312 IF NOT EXISTS*/ `testdb` /*!40100 DEFAULT CHARACTER SET latin1 */;
USE `testdb`;
--
-- Table structure for table `tb`
--
DROP TABLE IF EXISTS `tb`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `tb` (
`userId` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
/*!40101 SET character_set_client = @saved_cs_client */;
--
-- Dumping data for table `tb`
--
LOCK TABLES `tb` WRITE;
/*!40000 ALTER TABLE `tb` DISABLE KEYS */;
INSERT INTO `tb` VALUES (1),(2),(3),(4),(5);
/*!40000 ALTER TABLE `tb` ENABLE KEYS */;
UNLOCK TABLES;
--
-- Dumping events for database 'testdb'
--
-- 在上面dump出来的每个表中可以看到导出的时候已经产生了数据1-5
-- Dumping routines for database 'testdb'
--
SET @@SESSION.SQL_LOG_BIN = @MYSQLDUMP_TEMP_LOG_BIN;
--将导出文件复制到从服务器
[[email protected] ~]# scp /tmp/multidb.sql 192.168.1.245:/tmp
四、从库端的设置
([email protected])[(none)]>reset master;
Query OK, 0 rows affected (0.02 sec)
([email protected])[(none)]>reset slave all;
Query OK, 0 rows affected (0.04 sec)
([email protected])[(none)]>source /tmp/multidb.sql
([email protected])[tempdb]>CHANGE MASTER TO -> MASTER_HOST='Master', -> MASTER_USER='repl', -> MASTER_PASSWORD='123456', -> MASTER_PORT=3306, -> MASTER_AUTO_POSITION = 1;
Query OK, 0 rows affected, 2 warnings (0.07 sec)
([email protected])[tempdb]>start slave;
Query OK, 0 rows affected (0.05 sec)
([email protected])[testdb]>show slave status\G
*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: Master Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: node233-binlog.000008 Read_Master_Log_Pos: 201141 Relay_Log_File: node245-relay-bin.000002 Relay_Log_Pos: 96813 Relay_Master_Log_File: node233-binlog.000008 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: tempdb,testdb Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 201141 Relay_Log_Space: 97062 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error:
Replicate_Ignore_Server_Ids: Master_Server_Id: 233 Master_UUID: 1b64c25d-8d2b-11e6-9ac0-000c29b82d0d Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: -- Author : Leshami Last_IO_Error_Timestamp: -- Blog : http://blog.csdn.net/leshami Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: 1b64c25d-8d2b-11e6-9ac0-000c29b82d0d:2319-2702 Executed_Gtid_Set: 1b64c25d-8d2b-11e6-9ac0-000c29b82d0d:1-2702 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version:
五、验证主从记录
--以下查询中可以看到,两个数据库的表中的记录在不停的增加
([email protected])[testdb]>select count(*) from tb;
+----------+
| count(*) |
+----------+
| 206 |
+----------+
([email protected])[testdb]>select count(*) from tempdb.tb;
+----------+
| count(*) |
+----------+
| 214 |
+----------+
([email protected])[testdb]>select count(*) from tb;
+----------+
| count(*) |
+----------+
| 216 |
+----------+
([email protected])[testdb]>select count(*) from tempdb.tb;
+----------+
| count(*) |
+----------+
| 218 |
+----------+

本文数据库(mysql)相关术语:navicat for mysql mysql workbench mysql数据库 mysql 存储过程 mysql安装图解 mysql教程 mysql 管理工具

主题: SQLMySQLTI服务器InnoDBAUUT数据AUTUB
分页:12
转载请注明
本文标题:mysqldump快速搭建特定库主从架构(GTID)
本站链接:http://www.codesec.net/view/483626.html
分享请点击:


1.凡CodeSecTeam转载的文章,均出自其它媒体或其他官网介绍,目的在于传递更多的信息,并不代表本站赞同其观点和其真实性负责;
2.转载的文章仅代表原创作者观点,与本站无关。其原创性以及文中陈述文字和内容未经本站证实,本站对该文以及其中全部或者部分内容、文字的真实性、完整性、及时性,不作出任何保证或承若;
3.如本站转载稿涉及版权等问题,请作者及时联系本站,我们会及时处理。
登录后可拥有收藏文章、关注作者等权限...
技术大类 技术大类 | 数据库(mysql) | 评论(0) | 阅读(37)