Hi After playing around and re-install the test environment fail over seems working i.e backup server takes over. But new problem is I configured two read server to host the web service, which seem working for a while then after a while my active lvs router is only point to me one Real server. Then I restart pulse again and seem to to be working again for some time. what is causing this problem hereis my ipvsadm -L -n [roottest]# ipvsadm -L -n IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP <a href="http://192.168.1.1:80">192.168.1.1:80</a> wlc -> <a href="http://192.168.1.2:80">192.168.1.2:80</a> Route 1 0 15 -> <a href="http://192.168.1.3:80">192.168.1.3:80</a> Route 1 0 15 K <div class="gmail_quote">On Wed, Jan 18, 2012 at 1:59 PM, Ranjith Rajaram <<a href="mailto:rrajaram@redhat.com">rrajaram@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div bgcolor="#ffffff" text="#000000"><div class="im"> On 01/18/2012 07:22 PM, Khapare Joshi wrote: <blockquote type="cite"> Hi, all, first time poster. I recently deployed lvs (primary and backup) with piranh and ran into few issues. I turned off the primary lvs to see backup lvs will take over. However it does not take over right a way seem require restart pulse. How does this fail over works if primary goes down ? should not this be happen right a way if primary lvs goes down ? </blockquote></div> If primary goes, secondary has to take it over It depends on deadtime deadtime = n Length of time before a node is declared dead and IP takeover occurs. <a href="http://lvs.cf" target="_blank">lvs.cf</a> needs to be checked together with system configuration. Look at /var/log/messages<div class="im"> <blockquote type="cite"> And I have four real server- and it sees if one goes down whole system is unavailable (httpd service). Then I restart pulse and get the httpd service. I do not think this is right. could be please guide me in right direction to make reliable. </blockquote> </div> Do you have separate boxes for LVS directors and real server's ? [Are you running pulse on any of the two real server's ?] check the output of ipvsadm -L -n from the active lvs server [paste it here] <blockquote type="cite"><div class="im">PS: I use direct routing and have net.ipv4.conf.lo.arp_ignore = 1 net.ipv4.conf.lo.arp_announce = 2 in /etc/sysctl.conf sorry for too many question. Thanks </div><pre><fieldset></fieldset> _______________________________________________ Piranha-list mailing list <a href="mailto:Piranha-list@redhat.com" target="_blank">Piranha-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/piranha-list" target="_blank">https://www.redhat.com/mailman/listinfo/piranha-list</a></pre> </blockquote> <pre cols="72"></pre> </div> _______________________________________________ Piranha-list mailing list <a href="mailto:Piranha-list@redhat.com">Piranha-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/piranha-list" target="_blank">https://www.redhat.com/mailman/listinfo/piranha-list</a> </blockquote></div>