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Hi guys,
I read the lvs-minihowto like you suggested and this is what I get :
7.8. initial connection is delayed, but once connected everything
is fine
Usually you have problems with authd/identd
<http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.authd.html>.
Simplest thing is to stop your service on the realserver from calling
the identd server on the client (/i.e./disconnect your service from
identd).
--> my service is not run in identd at all
Another problem, which causes slowness in any situation, is DNS timing
out on a call. Ideally you shouldn't have DNS running on any machine in
an LVS - you will need to run sendmail etc off /etc/hosts. However if
you have DNS, make sure there are entries for all IPs on that machine
(if you have multiple interfaces) and any machine that you'll be
calling. To check, run commands that need name resolution /e.g./
*netstat -a* (will need entries in /etc/services as well) or *route*
(will need entries in /etc/networks as well). If either of these pause,
rerun them in the form which doesn't need name resolution (*netstat
-an*, *route -n*) to locate the entries forcing the pause - these don't
have name resolution.
--> don't solve the problem.. too... :-(
the configurationthat I use from :
http://www.ultramonkey.org/3/topologies/sl-ha-lb-eg.html
I use postal to benchmark mail, and smtp go just fine
[root@lmdk postal-0.62]# postal -m20 -p2 10.10.2.137 -r10000 user
1 normal
2 service down
3 service up, takeover
time,messages,data(K),errors,connections
08:58,980,10371,0,982,0
Can't connect to 10.10.2.137 port 25.
Can't connect to 10.10.2.137 port 25.
08:59,521,6646,2,521,0
09:00,866,9033,0,866,0
Read error.
09:01,780,8353,1,780,0
09:02,770,7797,0,768,0
09:03,787,8504,0,789,0
Read error.
Read error.
09:04,979,10212,2,980,0
Read error.
09:05,1269,13276,1,1267,0
09:06,1082,11339,0,1084,0
but when I try to connect to pop from client to VIP still slow respond in
another node..
[root@holy cacti]# telnet 10.10.2.137 110
Trying 10.10.2.137...
Connected to 10.10.2.137
Escape character is '^]'.
......(delay like in mini howto)
+OK <17512.1132351263@xxxxxxxxxxxxxx>
please help...
thanks
`axmal
Joseph Mack NA3T wrote:
On Thu, 17 Nov 2005, akmal wrote:
dear all,
im newbie in lvs, and i want to setup lvs with smtp and pop3
i set the configuration ldirectord.cf like in ultramonkey
when i connect to smtp vip is OKAY.
buat when using POP, one node OKAY buat another node is slowly respond,
but if i connect directly to real server, the respond is so fast.
any suggestion??
usually at this stage you go through the check list in the mini-HOWTO
Joe
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