<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.3059" name=GENERATOR></HEAD> <BODY> <DIV dir=ltr align=left>Hi </DIV> <DIV dir=ltr align=left> </DIV> <DIV dir=ltr align=left>First of all when you really have RHEL4 update4, then you should update to RHEL4 update5 befor you go into more testing.</DIV> <DIV dir=ltr align=left> </DIV> <DIV dir=ltr align=left>There are a lot of bugs in RHEL4 CS Update 4 !</DIV> <DIV dir=ltr align=left> </DIV> <DIV dir=ltr align=left>Mike</DIV> <DIV dir=ltr align=left> </DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> From: linux-cluster-bounces@redhat.com [mailto:linux-cluster-bounces@redhat.com] On Behalf Of Satya Daragani Sent: Montag, 28. Mai 2007 15:12 To: Linux-cluster@redhat.com Subject: [Linux-cluster] Testing Failover - Failing in few cases </DIV> <DIV></DIV> <DIV>Hi Linux-Cluster Team,</DIV> <DIV> </DIV> <DIV>Please help me in testing the failover with the RHEL Cluster Suite 4 with update 4. I am appending the details related to cluster nodes and configuration here. Kindly suggest me how to proceed further.</DIV> <DIV> </DIV> <DIV> IBM Lenovo Thinkcentre with AMD Opteron 64bit processor - Two nodes 256 MB RAM One NIC <OL style="MARGIN-TOP: 0in" type=1> <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Installed RHEL AS 4 Update 4 on both the nodes <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Configured NIC with IP range 192.168.1.x (node1 – <A href="http://192.168.1.1">192.168.1.1</A> , node2 – <A href="http://192.168.1.2">192.168.1.2</A>) <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Configured /etc/hosts. <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Installed the RHEL cluster suite 4 update 4 on both nodes. <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Added both the nodes in the cluster manager with one quorum vote <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">No fence devices configured (chkconfig --del fenced) <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Restricted & ordered by priority (node1 – 1, node -2) level failover domain configured. <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Shared IP address (<A href="http://192.168.1.5">192.168.1.5</A>) resource is configured and enabled the monitor link option. <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1; tab-stops: list .5in">Created a service with the name httpd and configured the following <OL style="MARGIN-TOP: 0in" type=a> <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level2 lfo1; tab-stops: list 1.0in">Checked the Autostart this service <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level2 lfo1; tab-stops: list 1.0in">Selected the failover domain configured in the previous steps. <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level2 lfo1; tab-stops: list 1.0in">Selected the Relocate as the recovery policy <LI class=MsoNormal style="MARGIN: 0in 0in 0pt; mso-list: l0 level2 lfo1; tab-stops: list 1.0in">Added the shared resource (IP created in the above steps), under this shared resource added the private resource script(/etc/rc.d/init.d/httpd). </LI></OL></LI></OL> Checking the failover: 1st case After configuring the above, now node1 is the primary node for the httpd service. If I restart the node1 the service is failed over to the node2, and once the node1 comes up again the service is failing over to the node1 (as the priority is configured) 2nd case Currently node1 is running the httpd service, if I down the network interface (ifconfig eth0 down), the httpd service is failing over to the node2. Then if I up the interface (ifconfig eth0 up) on node1, the service is not failovering to the node1 and in the /var/log/messages it is saying "unable to contact the cluster infrastructure". Need your help here If I restart the cluster services on the node1 again the service is getting started on the node1. 3rd case Currently node1 is running the HTTPd service, if I remove the powercord (I mean the improper shutdown), the service is going to the recovery mode and not getting started on the node2. Need your help here. 4th case Currently node1 is running the httpd service, if I stop or killall the httpd service (service httpd stop) failover is not happening. Need your help here. -- Thanx Satya Daragani <A href="mailto:satya.daragani@gmail.com">satya.daragani@gmail.com </A> +91 98850 58366 </DIV></BODY></HTML>