cdn gslb-20151209
TRANSCRIPT
Solution?• HTTP Proxy : Apache Traffic Server
• GSLB
• Wowza
• Configuration Management
• Admin Portal & Analysis Chart
• gluster
• over 20 plugins or modules
• Over 200 Physical Machine
GSLB(Global Server Load Balance)
• Load balancing
• Server
• Mainly World wide service
• also, multiple-IDC
Difference? - Disaster Recovery
Don’t know Site/Server Health of Application Server
Periodically check for health of Application Server
Don’t know the status of overloaded server
Periodically check of status SLB(Network session, Network
Usage..)
Site Load Balancing
Can’t check the RTT between User and Application Server
Check the RTT between Local DNS and SLB
Network Proximity
GSLB Policy - SLB Connection Load
SLB1interval : 5sec, number of every second new connection 100 + 110 + 120 + 130 + 140 / 5 = 120
GSLB Policy - Static Load Balancing
Round-Robin : SLB1 > SLB2 > SLB1 > SLB2 Weighted RR : SLB1 > SLB1 > SLB2 > SLB1 SLB1 …