1

I am using HAProxy for load balance with cookie based session persistence.

Configuration:

backend nodes mode http balance roundrobin cookie SERVER insert indirect nocache server node1 localhost:8080 cookie node1 server node2 localhost:9090 cookie node2 server node3 localhost:9091 cookie node3 server node4 localhost:9092 cookie node4 server node5 localhost:9093 cookie node5 server node6 localhost:9094 cookie node6

The problem is that I had five servers, perfectly balanced, but I added a new server and sessions are not being rebalanced as I thought they would be. The new server only have a few sessions.

How can I force a rebalance?

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2 Answers 2

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3

Try using maxidle and maxlife params for the cookie statement.

E.g.

cookie SERVER insert indirect nocache maxidle 30m maxlife 8h

See the documentation.

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1
  • Just curious, why is indirect and maxidle each needed? Commented Oct 25, 2024 at 15:01
0

Just change:

balance roundrobin

to

balance leastconn
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1
  • this won't redistribute the already existing associations, which are based on cookies Commented Aug 16, 2024 at 7:58

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