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RE: [Linux-cluster] doubts in Piranha




hi, did you make "ip_forward" active on lvs ? lvs must be default gw for RSs. And, did you check RSs connection on LVS, because on lvs, RSs can not seen.

root 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


my lvs configuration is below (LVS/NAT)

Main Network 10.0.0.0/24
Main Router 10.0.0.254
LVS eth0 -> 10.0.0.100
     eth0:0 -> 10.0.0.200    (Virtual IP for Virtual Service)
     eth1 -> 172.16.1.1/24  (the gateway for RS1-RS6)

RS1 eth0 -> 172.16.1.101
RS2 eth0 -> 172.16.1.102
RS3 eth0 -> 172.16.1.103
RS4 eth0 -> 172.16.1.104
RS5 eth0 -> 172.16.1.105
RS6 eth0 -> 172.16.1.106

ipvsadm -L -n

TCP 10.0.0.201:80  rr
 -> 172.16.1.101:80    Masq  1   0   X
 -> 172.16.1.102:80    Masq  1   0   X
 -> 172.16.1.103:80    Masq  1   0   X
 -> 172.16.1.104:80    Masq  1   0   X
 -> 172.16.1.105:80    Masq  1   0   X
 -> 172.16.1.106:80    Masq  1   0   X

have a nice day..

From: "Panigrahi, Santosh Kumar" <Santosh Panigrahi in unisys com>
Reply-To: linux clustering <linux-cluster redhat com>
To: "linux clustering" <linux-cluster redhat com>
Subject: RE: [Linux-cluster] doubts in Piranha
Date: Wed, 11 Jul 2007 17:11:51 +0530

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 inmy LVS on passing  ipvsadm -L -n comman.




[root 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 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 redhat com
[mailto:linux-cluster-bounces redhat com] On Behalf Of mehmet celik
Sent: Wednesday, July 11, 2007 2:15 PM
To: linux-cluster 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 in unisys com>

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

>To: <linux-cluster 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

>

><< image001.jpg >>

><< image004.jpg >>





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