For the nodeset command in particular, often there is a single network between all service nodes and compute nodes. During compute node deployment, DHCP broadcasts can be picked up by any service node, so xCAT will set up identical DHCP configuration for ALL nodes on every service node so that any one of them can respond to the initial DHCP request, and then have the "next-server" value set to the correct service node for that compute node for subsequent deployment data requests.
Linda From: Dave Barry <[email protected]> To: xCAT Users Mailing list <[email protected]> Date: 10/11/2011 01:22 PM Subject: [xcat-user] Why are service nodes sent commands for *all* nodes? Just curious, I noticed that even when a compute node is set to only use, for example, "service01" as their service node, the other service nodes still seem to be sent commands for that node. Example: [root@mn ~]# lsdef c1n01 Object name: c1n01 arch=x86_64 bmc=c1n01-bmc bmcport=0 chain=runcmd=standby currchain=boot currstate=netboot centos5.5-x86_64-compute groups=compute,all,ipmi initrd=xcat/netboot/centos5.5/x86_64/compute/initrd-stateless.gz installnic=eth0 interface=eth0 ip=192.168.1.2 kcmdline=imgurl=http://!myipfn!/install/netboot/centos5.5/x86_64/compute/rootimg.gz XCAT=!myipfn!:3001 ifname=eth0:00:50:56:11:11:15 netdev=eth0 kernel=xcat/netboot/centos5.5/x86_64/compute/kernel mac=00:50:56:11:11:15 mgt=ipmi netboot=pxe nfsserver=mn nodetype=osi ondiscover=nodediscover os=centos5.5 postbootscripts=otherpkgs postscripts=updaterepos.sh,syslog,remoteshell,syncfiles power=ipmi primarynic=eth0 profile=compute provmethod=netboot servicenode=service01 status=booted statustime=10-11-2011 12:13:27 [root@mn ~]# nodeset c1n01 netboot Error: Unable to dispatch hierarchical sub-command to service02:3001. This service node may be down or its xcatd daemon may not be responding. c1n01: netboot centos5.5-x86_64-compute As you can see, c1n01 has "service01" only as its service node, but the management node is still trying to talk to service02 about this command. Is this expected behavior, or have I misconfigured something? Thanks! ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user
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------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct
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