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飞信核心库Ha设计及实现
1.
飞信核心库HA设计及实现
新技术研发部 吴炳锡 2011年8月22日
2.
3.
HA设计
4.
HA结构实现
5.
已经遇到问题及存在的不足
6.
目前技术路线
7.
8.
飞信不但可以免费从PC给手机发短信,而且不受任何限制,能够随时随地与好友开始语聊,并享受超低语聊资费。
9.
飞信实现无缝链接的多端信息接收,MP3、图片和普通OFFICE文件都能随时随地任意传输,让您随时随地都可与好友保持畅快有效的沟通,工作效率高,快乐齐分享!
10.
飞信还具备防骚扰功能,只有对方被您授权为好友时,才能与您进行通话和短信,安全又方便。
11.
12.
Red Hat Linux
Enterprise 5.X
13.
MySQL 5.1
14.
Red Hat Cluster
Site
15.
数据库现状:
16.
基于存储过程的数据库调用
17.
单表最大的6亿数据,物理大小60G+
18.
19.
20.
21.
22.
对于主库Crash,Standy 接管较快,不用crash恢复的过程
23.
对于Slave在发生切换后,可以正常的同步
24.
25.
Red Hat Cluster
Site官方配置中不支持两边事例都存活
26.
27.
在mysql.sh中start处理中,先做mysql的关闭,同时记录mysql的”show master status”及同步是否完成的一些判断,没完成则等待。
28.
29.
Standy 机器基本不承担业务
30.
异常切换会造成Slave有可能比Master还多点数据
31.
主库压力过大,从库基本上很难赶比较吃力
32.
用mysql_safe启动的mysql在故障时不能及时切换过来后改成mysqld –defaults-file=/path/my.cnf &启动
33.
Standy接管后ibp加载对系统压力较大
34.
35.
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