9. HAProxy
• TCP/HTTP
• MySQL
• (Web+HAProxy+DB) x2
• Alex Williams (http://www.alexwilliams.ca/blog/
2009/08/10/using-haproxy-for-mysql-failover-and-
redundancy/)
10.
11.
12. Web Web
• DB2 or
HAProxy HAProxy
• HAProxy DB1
DB1 DB2
13. Web Web
• DB1 or
HAProxy HAProxy
• HAProxy DB2
DB1 DB2
14. Web Web
•
• HAProxy (DB1) HAProxy HAProxy
• read ( )
DB1 DB2