[Linux-cluster] doubts in Piranha

Wed Jul 11 11:41:51 UTC 2007

Hi Mehmet CELIK,

Thanks for your reply.

I have changed my piranha configuration as per your instruction. Still
it is not working. Configuration is follows.

LVS eth0 -> 10.1.40.45

      eth0:0 -> 10.1.40.50

LVS eth1 -> 11.1.40.45

      eth1:0 -> 11.1.40.50

RS eth0 -> 10.1.40.34

My lvs.cf is as follows:

serial_no = 12

primary = 11.1.40.45

service = lvs

network = nat

nat_router = 10.1.40.50 eth0:0

nat_nmask = 255.255.255.0

debug_level = NONE

virtual Telnet {

     active = 1

     address = 11.1.40.50 eth1:0

     vip_nmask = 255.255.255.0

     port = 23

     send = "GET / HTTP/1.0\r\n\r\n"

     expect = "HTTP"

     use_regex = 0

     load_monitor = none

     scheduler = wlc

     protocol = tcp

     timeout = 6

     reentry = 15

     quiesce_server = 0

     server m1034 {

         address = 10.1.40.34

         active = 1

         weight = 100

     }

}

After this I am starting pulse service in my LVS.

Following output I am getting in my LVS on passing ipvsadm -L -n comman.

[root at m1045 ha]# ipvsadm -L -n

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn

TCP  11.1.40.50:23 wlc

[root at m1045 ha]#

Note: Here there is no route for forward path to Real server. I am
guesing piranha is not updating it. 

Log from CONTROL/MONITORING Tab of Piranha:

What should I do after this?

Thanks,

Santosh

-----Original Message-----
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of mehmet celik
Sent: Wednesday, July 11, 2007 2:15 PM
To: linux-cluster at redhat.com
Subject: RE: [Linux-cluster] doubts in Piranha

hi, firstly, the piranha is not supporting lvs/dr or lvs/tun right now.
may 

in future..

the following paragraph is from

http://www.redhat.com/support/resources/howto/piranha/

"Currently, the LVS cluster supports one routing method,

Network Address Translation (NAT). (In the future, tunneling

and direct routing will be added.)"

secondly, your configuration is wrong.

LVS eth0 -> 10.1.40.45

      eth0:0 -> 10.1.40.40

LVS eth1 -> 11.1.40.45

      eth1:0 -> 11.1.40.40

RS eth0 -> 10.1.40.34

you should write "10.1.40.40 and eth0:0" to "NAT Router IP and Device"
on 

piranha. is not eth1:1. the default gw should be set "10.1.40.40" for
RS. 

Then, "Virtual Service" IP should be set "11.1.40.40 and eth1:0".

REQUEST  =   client -> (11.1.40.40)  ipvs  forward on lvs   (10.1.40.40)
-> 

  (10.1.40.34) RS

RESPOND  =   client <- (11.1.40.40)  NAT on lvs-gateway  (10.1.40.40)
<-  

(10.1.40.34) RS

if you change configuration, you must restart pulse service.

have a nice day.

Mehmet CELIK

Istanbul/TURKEY

>From: "Panigrahi, Santosh Kumar" <Santosh.Panigrahi at in.unisys.com>

>Reply-To: linux clustering <linux-cluster at redhat.com>

>To: <linux-cluster at redhat.com>

>Subject: [Linux-cluster] doubts in Piranha

>Date: Tue, 10 Jul 2007 17:33:37 +0530

> 

>Hi,

> 

> 

> 

>I want to know, whether piranha supports configuring the following LVS

>cluster.

> 

> 

> 

>1) Direct routing

> 

>2) Nat routing

> 

>3) Tunneling

> 

> 

> 

>Actually, I am configuring a NAT LVS cluster in piranha with one LVS

>router and one Real Server. (For LVS testing purpose)

> 

>I am doing it in RHEL5 with piranha-0.8.4-7.el5.

> 

> 

> 

>LVS Router: 2 NIC cards (eth0: 10.1.40.45 - private interface, eth1:

>11.1.40.45- public interface, eth1:0: 11.1.40.40- Virtual Public IP)

> 

>Real server:  1 NIC card (eth0: 10.1.40.34)

> 

> 

> 

>My piranha configuration is as follows.

> 

> 

> 

>Virtual server Tab:

> 

> 

> 

> 

> 

>Global Settings Tab:

> 

> 

> 

> 

> 

>I am configuring it to open a telnet session from a client PC, which is

>not happening at all. My guess is piranha is not updating the IPVSADM

>table properly as per the configuration or I have configured it
wrongly.

>Can somebody help me in this regard?

> 

> 

> 

>Thanks and Regards,

> 

>Santosh

> 

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><< image004.jpg >>

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