Load Balance 产品横向比较

 We can use Load Balance strategy to  increase the system volume .

 

Part 1: LB hardware/software horizontal comparison

the following is the cost and capability estimation:

Technology	Hardware(H) /Software(S)	Advantage	Disadvantage	Capability (Support how many concurrent sessions)	Cost
F5 BIG-LTM-3400-RS	H	Fast Speed (millis-second level) High Availablity(99.9999%)	High Cost	>4,000,000	370000RMB
LVS(for Linux)	S	Best Performance in Software HB solution Don’t need so many configuration Hot backup solution	Don’t support regular expression Can’t support dynamic-static page separation	>100,000	Free
Nginx	S	More flexible ,especially support regular expression Less dependency on network, if pings well ,it can do LB Easy install and config Support high concurrency Good technical community support	Only support http and email ,it can’t hold session	>10,000	Free
HAProxy	S	Can support http ,tcp ,email Can hold session	Don’t support apache logging format   Need to configure a lot of ACLs	>10,000	Free

 

Part 2: My Suggestion

If budget is enough ,we can use two layers:

Layer 1: use F5 (hardware) to load balance every request

Layer 2: use several Nginx server to load balance the request which has been dispatched by Layer 1(F5)