Perlbal reviews

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Perlbal (1.78) *****

Perlbal is great as a backend tool to load balance busy application servers. For static content and such, other options (Varnish, nginx, haproxy for example) are better – but for careful, accurate and end-to-end reliable load balancing of resource intensive servers perlbal is great.

Some of my favorite unique perlbal features are

- Checks each connection is actually working before using it (optional, but the default)
- Can multiplex keep-alive connections so the client and servers are both keep-alive, but not tied to each-other.

Perlbal (1.78) ***

problem with keep_alive from LWP client,
not supported connection to backends over ssl and client connection over tcp/ip