1Perlbal::Manual::FailOvUesre(r3)Contributed Perl DocumenPteartliboanl::Manual::FailOver(3)
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6 Perlbal::Manual::FailOver - Fail Over mechanism in Perlbal
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8 VERSION
9 Perlbal 1.78.
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11 DESCRIPTION
12 How Perlbal's Fail Over mechanism works.
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14 Fail Over
15 Whenever Perlbal fails to open a connection to a machine, it assumes
16 that machine is not available and spreads the load between the
17 remaining servers. It keeps trying to open connections to that server
18 according to "error_retry_schedule".
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20 If there are no available servers, Perlbal will keep trying to open
21 connections to the servers until "idle_timeout" is reached, upon which
22 it will close the connection to the user. Clients interpret that
23 closing differently: most will assume a 500 HTTP code, a few assume a
24 200 OK with empty content.
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26 For more information on parameters "idle_timeout" and
27 "error_retry_schedule" see Perlbal::Manual::ReverseProxy.
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29 SEE ALSO
30 Perlbal::Manual::LoadBalancer, Perlbal::Manual::ReverseProxy.
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34perl v5.32.1 2021-01-25 Perlbal::Manual::FailOver(3)