balances between different backends.
Using an action from mod_balance also activates a backlog: lighttpd2 will then put requests in a backlog if no backend is available and try again later.
Be careful: the referenced actions may get executed more than once (until one is successful!), so don't loop rewrites in them or something similar.
balance between actions (list or single action) with Round-Robinthe actions to balance between
Round-Robin (rr) the requests are distributed equally over all backends.
balance.rr { fastcgi "127.0.0.1:9090"; };
balance.rr ({ fastcgi "127.0.0.1:9090"; }, { fastcgi "127.0.0.1:9091"; });
balance between actions (list or single action) with SQFthe actions to balance between
Shortest-Queue-First (sqf) is similar to Round-Robin and prefers the backend with the shortest wait-queue.
balance.sqf { fastcgi "127.0.0.1:9090"; };