码迷,mamicode.com
首页 > 数据库 > 详细

MariaDB 10.0.10 GTID复制

时间:2015-01-27 18:41:47      阅读:293      评论:0      收藏:0      [点我收藏+]

标签:mariadb 10 gtid复制

一:概念理解:

    1.TID:Transaction ID,即Mysql服务器的事务ID号。

2.GTID:Global Transaction ID,全局事务ID,在整个主从复制架构中任何两个事物ID是不能相同的。

3.全局事物ID是Mster服务器生成一个128位的UUID+事物的ID号组成的,UUID标示主服务器的身份,此UUID在整个主从复制架构中是绝对唯一,而且即使更换主服务器后UUID也不会改变而是继承当前主服务器的UUID身份。

4.全局事务ID有何用处?简单来讲GTID能够保证让一个从服务器到其他的从服务器那里实现数据复制而且能够实现数据整合的。GTID在分布式架构中可以保证数据的一致性。从而也实现了mysql的高可用性。

5.GTID相关操作:默认情况下将一个事务记录进二进制文件时将首先记录它的GTID而且GTID和事务相关信息一并要发送给从服务器由从服务器在在本地应用认证但是绝对不会改变原来的事务ID号。

6.因此在GTID的架构上就算有了N层架构,复制是N级架构,但是全局事务ID依然不会改变;有效的保证了数据的完整和安全性。


二:主要选项:

1、my.cnf配置:

Master:

[root@node4 ~]# grep -v ‘#‘ /etc/mysql/my.cnf 

[client]

port= 3306

socket= /tmp/mysql.sock


[mysqld]

port= 3306

socket= /tmp/mysql.sock

skip-external-locking

key_buffer_size = 256M

max_allowed_packet = 1M

table_open_cache = 256

sort_buffer_size = 1M

read_buffer_size = 1M

read_rnd_buffer_size = 4M

myisam_sort_buffer_size = 64M

thread_cache_size = 8

query_cache_size= 16M

thread_concurrency = 4

datadir = /data/mydata

innodb_file_per_table = 1 

log-bin=/data/binlogs/master-bin

binlog_format=ROW


以下是主要的增该内容:

server-id= 100


log-slave-updates=True  #slave更新是否记入日志

master-info-repository=TABLE 

relay-log-info-repository=TABLE #此两项为打开从服务器崩溃二进制日志功能,信息记录在事物表而不是保存在文件

sync-master-info=1  #值为1确保信息不会丢失

slave-parallel-threads=2 #同时启动多少个复制线程,最多与要复制的数据库数量相等即可

binlog-checksum=CRC32 #效验码

master-verify-checksum=1 #启动主服务器效验

slave-sql-verify-checksum=1 #启动从服务器效验

binlog-rows-query-log-events=1 #用于在二进制日志详细记录事件相关的信息,可降低故障排除的复杂度;

report-port=3306 #请求的主机端口

report-host=node4.a.com  #请求的主机名,必须是主机名全称且DNS可解析



[mysqldump]

quick

max_allowed_packet = 16M


[mysql]

no-auto-rehash


[myisamchk]

key_buffer_size = 128M

sort_buffer_size = 128M

read_buffer = 2M

write_buffer = 2M


[mysqlhotcopy]

interactive-timeout

验证: 查看当前主机的二进制文件进度:

mysql> show master status;

+-------------------+----------+--------------+------------------+

| File              | Position | Binlog_Do_DB | Binlog_Ignore_DB |

+-------------------+----------+--------------+------------------+

| master-bin.000008 |      446 |              |                  |

+-------------------+----------+--------------+------------------+

1 row in set (0.00 sec)


查看当前的二进制文件详细的信息:

mysql> show binlog events in ‘master-bin.000008‘;

+-------------------+-----+-------------------+-----------+-------------+------------------------------------------------+

| Log_name          | Pos | Event_type        | Server_id | End_log_pos | Info                                           |

+-------------------+-----+-------------------+-----------+-------------+------------------------------------------------+

| master-bin.000008 |   4 | Format_desc       |       100 |         248 | Server ver: 10.0.10-MariaDB-log, Binlog ver: 4 |

| master-bin.000008 | 248 | Gtid_list         |       100 |         277 | []                                             |

| master-bin.000008 | 277 | Binlog_checkpoint |       100 |         321 | master-bin.000008                              |

| master-bin.000008 | 321 | Gtid              |       100 |         363 | GTID 0-100-1                                   |

| master-bin.000008 | 363 | Query             |       100 |         446 | create database sd                             |

+-------------------+-----+-------------------+-----------+-------------+------------------------------------------------+

5 rows in set (0.00 sec)


2、创建复制账号并授权:

mysql> GRANT REPLICATION SLAVE,REPLICATION CLIENT  ON *.* TO   ‘jack‘@‘192.168.%.%‘  IDENTIFIED BY ‘123456‘;

mysql> FLUSH PRIVILEGES;


Slave:

[root@node5 ~]# grep -v ‘#‘ /etc/mysql/my.cnf 


[client]

port= 3306

socket= /tmp/mysql.sock



[mysqld]

port= 3306

socket= /tmp/mysql.sock

skip-external-locking

key_buffer_size = 256M

max_allowed_packet = 1M

table_open_cache = 256

sort_buffer_size = 1M

read_buffer_size = 1M

read_rnd_buffer_size = 4M

myisam_sort_buffer_size = 64M

thread_cache_size = 8

query_cache_size= 16M

thread_concurrency = 4

innodb_file_per_table = ON

datadir = /data/mydata

log-bin=/data/binlogs/master-bin

server-id=  1

以下为重点配置部分:

binlog-format=ROW

log-slave-updates=true

master-info-repository=TABLE

relay-log-info-repository=TABLE

sync-master-info=1

slave-parallel-threads=2

binlog-checksum=CRC32

master-verify-checksum=1

slave-sql-verify-checksum=1

binlog-rows-query-log_events=1

report-port=3306

report-host=node5.a.com



[mysqldump]

quick

max_allowed_packet = 16M


[mysql]

no-auto-rehash


[myisamchk]

key_buffer_size = 128M

sort_buffer_size = 128M

read_buffer = 2M

write_buffer = 2M


[mysqlhotcopy]

interactive-timeout


连接到主服务器:

mysql> CHANGE MASTER TO MASTER_HOST=‘192.168.10.204‘,MASTER_USER=‘jack‘,MASTER_PASSWORD=‘123456‘,MASTER_LOG_FILE=‘master-bin.000013‘,MASTER_LOG_POS=379;

mysql> start slave;


然后确认复制进程是否已经成功启动:

mysql> show slave status\G;

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event


Master_Host: 192.168.10.204


Master_User: jack


Master_Port: 3306


Connect_Retry: 60


Master_Log_File: master-bin.000013


Read_Master_Log_Pos: 725


Relay_Log_File: node5-relay-bin.000002


Relay_Log_Pos: 714


Relay_Master_Log_File: master-bin.000013


Slave_IO_Running: Yes


Slave_SQL_Running: Yes



同步成功后将从进程关闭:

mysql> stop slave;

mysql> CHANGE MASTER TO MASTER_HOST=‘192.168.10.204‘,MASTER_USER=‘jack‘,MASTER_PASSWORD=‘123456‘,MASTER_USE_GTID=current_pos;

mysql> start slave;

mysql> show slave status\G;

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 192.168.10.204

Master_User: jack

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: master-bin.000013

Read_Master_Log_Pos: 725

Relay_Log_File: node5-relay-bin.000002

Relay_Log_Pos: 714

Relay_Master_Log_File: master-bin.000013

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB:

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: 725

Relay_Log_Space: 1015

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: 100

Master_SSL_Crl:

Master_SSL_Crlpath:

Using_Gtid: Current_Pos

Gtid_IO_Pos: 0-100-4



已经启动完成:




本文出自 “Linux” 博客,请务必保留此出处http://zhangshijie.blog.51cto.com/806066/1608883

MariaDB 10.0.10 GTID复制

标签:mariadb 10 gtid复制

原文地址:http://zhangshijie.blog.51cto.com/806066/1608883

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!