NAME¶
Perlbal::Manual::FailOver - Fail Over mechanism in Perlbal
VERSION¶
Perlbal 1.78.
DESCRIPTION¶
How Perlbal's Fail Over mechanism works.
Fail Over¶
Whenever Perlbal fails to open a connection to a machine, it assumes that
machine is not available and spreads the load between the remaining servers.
It keeps trying to open connections to that server according to
"error_retry_schedule".
If there are no available servers, Perlbal will keep trying to open connections
to the servers until "idle_timeout" is reached, upon which it will
close the connection to the user. Clients interpret that closing differently:
most will assume a 500 HTTP code, a few assume a 200 OK with empty content.
For more information on parameters "idle_timeout" and
"error_retry_schedule" see Perlbal::Manual::ReverseProxy.
SEE ALSO¶
Perlbal::Manual::LoadBalancer, Perlbal::Manual::ReverseProxy.