Nginx with LVS on Linux

[hirantha]

Hi Cherife,

Thank you for the quick response.

Cherife Li wrote:
> On Thu, 19 Mar 2009 at 16:56:41 +0530, hirantha wrote:
> 
>> Hi,
> Hi Hirantha,
>> I'm planing to use nginx on existing LVS load balancer with more than 10 
>> numbers of web servers as back-ends. My main objective is to use nginx 
>> as a reverse-proxy while compressing the data streaming. Since the LVS 
>> running on Linux, I have planned to run the Nginx on the same Linux box 
>> though I have tested it on FreeBSD.
>>
>> Here is the setup I am looking for
>>
>> [CLIENT] --> [NGINX+LVS+PULSE] --> [WEB SERVER FLEET]
> Maybe offing topic, but you may try:
>   Clients --> Varnish (for caching) --> HAProxy (L7 LB/Proxy) --> Nginx WebSrvs

My idea is to use nginx to do compression for back-end servers. HAProxy or Varnish does not support 
such feature. I don't need nginx to do load balance and persistence but only compression. LVS doing 
an outstanding job on load balancing and session handling (persistence) while pulse (piranha) doing 
  helthchecks and failovers.

I have read some post of persistence+round robin within nginx which seems to be not successful.

Any suggestion is much appreciated.

Hirantha
>  
>> I will be running LVS for to load balance user connections requesting 
>> coming through Nginx and forward to back-end servers in Round-robin 
>> algorithm . LVS also handing the the persistence, healthchecks and 
>> failovers with pulse (piranha).
> Good enough. But HAProxy gives you more power on LB and Proxying.
> 
>> I would like to know is there a performance degration on Nginx when 
>> moving from FreeBSD to Linux (Rhel5)..?
>> I will be testing the setup to run nginx and lvs on same box but is this 
>> feasible..? I googled but haven't seen any posts regards to nginx+lvs.
>>
>> I wonder is there any way that we could run nginx with keepalived while 
>> nginx to handle the load balancing and completely replace LVS. Right now
> See above.
>  
>> I'm running two back-end servers front-end with nginx reverse-proxy; 
>> every time when I refresh the browser it connecting to back-end servers 
>> in round-robin method. I can't keep the session connected to single 
>> back-end server (persistence).
> Consider to use shared session storage with Memcached.
> 
> There are lots of features I just can't tell in details regarding
> Varnish, HAProxy. I think they'll give you much more choices.
> 
> Hope that helps. 
>> I would really appreciate your advice.
>>
>> Thanks in advance
>> Hirantha
>>
>>
>