Hi Cyril, I seem to be having luck with simply replacing the Virtual IP to 127.0.0.1, I will test it further. thanks again!!
On Sun, Aug 14, 2011 at 6:16 PM, Cyril Bonté <[email protected]> wrote: > Le Sunday 14 August 2011 13:31:57, Ran S a écrit : > > Hi Cyril, > > > > I see, thanks for that. > > So, will the correct way be to configure two different backends and > include > > the reqrep for each one of them. > > But how will I get the listen or frontend node to load balance between > two > > different backend nodes? I can't find the configuration to do that... is > it > > possible? > > Well, haproxy is not designed to load balance between backends, but there > are > several workarounds (some of them are less elegant than the others). > > For your issue, I don't know all about your configuration so maybe it won't > work, but first, can you check if you can unconditionally replace the Host > header with 127.0.0.1 ? Maybe that could do the trick. > reqrep ^Host:\ 172.31.0.103 Host:\ 127.0.0.1 > > One other workaround is to decide to not load balance but switch to a > second > backend under certain conditions (for example when the first backend > exceeds a > # of connections). > > frontend http-in > bind :80 > mode http > option httpclose > > use_backend backend2 if { be_conn(backend1) gt 100 } > default_backend backend1 > > backend backend1 > mode http > > reqrep ^Host:\ 172.31.0.103 Host:\ 172.31.0.104 > server node1 172.31.0.104:85 > > backend backend2 > mode http > > reqrep ^Host:\ 172.31.0.103 Host:\ 172.31.0.118 > server node2 172.31.0.118:85 > > Another solution is to add a second level of proxies in haproxy : > > listen http-in > bind :80 > mode http > option httpclose > > server pnode1 127.0.0.1:8104 > server pnode2 127.0.0.1:8118 > > listen proxy104 > bind 127.0.0.1:8104 > mode http > option httpclose > > reqrep ^Host:\ 172.31.0.103 Host:\ 172.31.0.104 > server node1 172.31.0.104:85 > > listen proxy118 > bind 127.0.0.1:8118 > mode http > option httpclose > > reqrep ^Host:\ 172.31.0.103 Host:\ 172.31.0.118 > server node2 172.31.0.118:85 > > This is just some ideas (not tested), or you can try to add some conditions > directly in your apache configuration. > > Hope this helps. > > -- > Cyril Bonté >
