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[DOC] document the leastconn LB algo

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Willy Tarreau 2008-03-17 12:07:56 +01:00
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doc/configuration.txt
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@ -711,6 +711,15 @@ balance <algorithm> [ <arguments> ]
is dynamic, which means that server weights may be adjusted is dynamic, which means that server weights may be adjusted
on the fly for slow starts for instance. on the fly for slow starts for instance.
leastconn The server with the lowest number of connections receives the
connection. Round-robin is performed within groups of servers
of the same load to ensure that all servers will be used. Use
of this algorithm is recommended where very long sessions are
expected, such as LDAP, SQL, TSE, etc... but is not very well
suited for protocols using short sessions such as HTTP. This
algorithm is dynamic, which means that server weights may be
adjusted on the fly for slow starts for instance.
source The source IP address is hashed and divided by the total source The source IP address is hashed and divided by the total
weight of the running servers to designate which server will weight of the running servers to designate which server will
receive the request. This ensures that the same client IP receive the request. This ensures that the same client IP