Viability of nginx instead of hardware load balancer?

Gena Makhomed gmm at
Wed Sep 23 20:56:33 MSD 2009

On Monday, September 21, 2009 at 23:00:33, David Murphy wrote:

DM> Once again Gena you missed my point by a landslide. WRT/DSL were to show
DM> proof it could be done and very low end hardware, you could always get
DM> better hardware.

high traffic load balancer couldn't be done at WRT/DSL.
original question was about high traffic load balancer.

this is reason, why games with WRT/DSL
are just wasting of his time and money.

experience with WRT/DSL not need to use
nginx on better hardware and better OS.

WRT and DSL - has limited capabilities.
just warning from me, nothing personal.

DM> Furthermore you fail-over logic is flawed, if done proper
DM> you can prevent the failure pages to the end user.

for future new connections - yes, can prevent,
for active tcp sessions/transmissions - can't.

because tcp connection states and http states are not shared
between independent nodes of nginx-based load balancer cluster.

each hardware node of nginx-based load balancer cluster
may have several hundred or thousand active tcp connections.

this is reason why persistent failure of one node
don't have zero cost even if other nodes are live.

Best regards,

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