We have been running haproxy for years and are currently running 1.4.8.
Recently we upgraded to exchange 2010 and are balancing it behind haproxy with
the following config. Normally when we need to do maintenance, we will change
the config and run haproxy with the -sf switch to take over for the running
process. Since adding this config, the old processes will not die and running
netstat shows that each process is holding on to a single udp port around 32800.
udp 0 0 0.0.0.0:32803 0.0.0.0:*
31441/haproxy
udp 0 0 0.0.0.0:32804 0.0.0.0:*
896/haproxy
udp 0 0 0.0.0.0:32805 0.0.0.0:*
23140/haproxy
Any idea why this is happening? There are no udp ports configured to listen
anywhere in the config file.
listen exchange2010 <hidden>:80
bind <hidden>:25
bind <hidden>:110, <hidden>:135
bind <hidden>:139, <hidden>:443
bind <hidden>:60000, <hidden>:60001
bind <hidden>:6001-6004
bind <hidden>:993-995
mode tcp
balance roundrobin
server primary <hidden> check port 80
server secondary <hidden> check port 80 backup
option abortonclose
maxconn 40000
clitimeout 3600000
srvtimeout 3600000
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