tree 5de57c533605dde8b6f1e3945a084bb8b41dc7c1
parent 96bca33d7569b64e9b977f7a17e2b21237679e0f
author Willy Tarreau <w@1wt.eu> 1603381305 +0200
committer Willy Tarreau <w@1wt.eu> 1603384218 +0200
encoding latin1

MINOR: leastconn: take the queue length into account when queuing servers

When servers are queued into the leastconn tree, it's important to also
consider their queue length. There could be some servers with lots of
queued requests that we don't want to hammer with extra connections. In
order not to add extra stress to the LB algorithm, we don't update the
value when adding to the queue, only when updating the connection count
(i.e. picking from the queue or releasing a connection). This will be
sufficient to significantly improve the fairness in such situations.