My /etc/hosts is like this, cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 10.30.2.98 test01.iopextech.com test01 10.30.2.99 test02.iopextech.com test02
and in my cluster.conf i have given the short name. So what you are saying better to use FQDN...! I will try to give FQDN in all my configuration files. And will try. Let's see. Thanks for your comments. On Mon, Sep 16, 2013 at 11:41 PM, Florian Crouzat <gen...@floriancrouzat.net > wrote: > Le 16/09/2013 17:30, Gopalakrishnan N a écrit : > >> Hey Guys, >> >> The OS am running is CentOS 6.4 (64bit) and I have disabled IPtables and >> SeLinux. >> >> My goal is to make Apache Tomcat as HA. As a first step thought of >> testing with Apache. >> >> My network setup is like this, >> Node1 is connected to switch >> Note2 is connected to switch. >> >> My cluster.conf file is as follows, >> [root@test01 ~]# cat /etc/cluster/cluster.conf >> <?xml version="1.0"?> >> <cluster config_version="1" name="mycluster1"> >> <logging debug="off"/> >> <clusternodes> >> <clusternode name="test01" nodeid="1"> >> <fence> >> <method name="pcmk-redirect"> >> <device name="pcmk" port="test01"/> >> </method> >> </fence> >> </clusternode> >> <clusternode name="test02" nodeid="2"> >> <fence> >> <method name="pcmk-redirect"> >> <device name="pcmk" port="test02"/> >> </method> >> </fence> >> </clusternode> >> </clusternodes> >> <fencedevices> >> <fencedevice name="pcmk" agent="fence_pcmk"/> >> </fencedevices> >> </cluster> >> >> >> And @some point of time am able to see both nodes are registered, >> [root@test01 ~]# cman_tool nodes >> Node Sts Inc Joined Name >> 1 M 104 2013-09-17 02:01:11 test01 >> 2 M 108 2013-09-17 02:15:07 test02 >> >> And @sometimes with crm_mon -1, I get the following >> >> [root@test01 ~]# crm_mon -1 >> Last updated: Tue Sep 17 02:47:27 2013 >> Last change: Tue Sep 17 00:42:43 2013 via crmd on test01 >> Stack: cman >> Current DC: NONE >> 4 Nodes configured, 2 expected votes >> 0 Resources configured. >> >> >> Node test01: UNCLEAN (offline) >> Node test01.iopextech.com <http://test01.iopextech.com>: UNCLEAN >> (offline) >> Node test02: UNCLEAN (offline) >> Node test02.iopextech.com <http://test02.iopextech.com>: UNCLEAN >> (offline) >> >> Thanks. >> >> > Ok, if you are still unhappy with CMAN check your switch for multicast. > > From there, I assume you are happy with cman otherwise there are no > reasons to start pacemaker, but you did, so you get my point ;) > > This kind of errors often indicates that your /etc/hosts or DNS is wrong > and pacemaker has a hard time to map hostnames and IPs, etc (not sure about > the internals there...) > Get rid of the invalid nodes by editing the configuration; stop pacemaker; > fix your resolutions and retry. > > In the entire process, I usually use FQDN in my cluster.conf file, and I > add them and the corresponding ring IP in my /etc/hosts file on all nodes. > I also use the same FQDN in my pacemaker configuration. > > Cheers > > > >> >> >> On Mon, Sep 16, 2013 at 8:40 PM, Florian Crouzat >> <gen...@floriancrouzat.net >> <mailto:gentoo@floriancrouzat.**net<gen...@floriancrouzat.net>>> >> wrote: >> >> Le 16/09/2013 14:18, Gopalakrishnan N a écrit : >> >> Do I need to have a cross over cable between each node? Is it >> mandatory? >> >> >> Nop it doesn't. >> In your case, I'd check the network architecture and/or firewalling >> regarding multicast. You probably either have wrong iptables and/or >> a switch dropping your multicast corosync ring(s). >> >> Also, please, as Andreas said: try to communicate with us in a more >> efficient way: more context, more informations and more output >> (pasted somewhere). >> >> We are happy to help people, but we don't have to waste our time >> trying to understand what these exact people doesn't tell us because >> they are lazy. >> >> ps: also use 'corosync-objctl' ; it's a good command to debug rings >> and configurations. >> >> Cheers, >> Florian. >> >> >> >> On Mon, Sep 16, 2013 at 8:01 PM, Gopalakrishnan N >> <gopalakrishnan...@gmail.com >> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan...@gmail.com> >> > >> <mailto:gopalakrishnan.an@__gm**ail.com <http://gmail.com> >> >> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan...@gmail.com>>>> >> wrote: >> >> Again the when i restarted the pacemaker and cman not the >> nodes are >> not in online, back to square 1. >> >> node1 shows only node1 online, and node2 says node2 online. >> I don't >> know what's happening in the background... >> >> Any advice would be appreciated.. >> >> Thanks. >> >> >> On Mon, Sep 16, 2013 at 6:47 PM, Gopalakrishnan N >> <gopalakrishnan...@gmail.com >> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan...@gmail.com> >> > >> <mailto:gopalakrishnan.an@__gm**ail.com <http://gmail.com> >> >> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan...@gmail.com> >> >>> >> >> wrote: >> >> Hi guys, >> >> I got it, basically it tool some time to propogate and >> now two >> nodes are showing online... >> >> Thanks. >> >> >> On Mon, Sep 16, 2013 at 6:39 PM, Gopalakrishnan N >> <gopalakrishnan...@gmail.com >> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan...@gmail.com> >> > >> <mailto:gopalakrishnan.an@__gm**ail.com<http://gmail.com> >> >> <mailto:gopalakrishnan.an@**gmail.com<gopalakrishnan...@gmail.com>>>> >> wrote: >> >> I have configured CMAN as per the link >> http://clusterlabs.org/doc/en-**__US/Pacemaker/1.1-plugin/** >> html-__single/Clusters_from_**Scratch/__index.html#_**configuring_cman<http://clusterlabs.org/doc/en-__US/Pacemaker/1.1-plugin/html-__single/Clusters_from_Scratch/__index.html#_configuring_cman> >> >> <http://clusterlabs.org/doc/**en-US/Pacemaker/1.1-plugin/** >> html-single/Clusters_from_**Scratch/index.html#_**configuring_cman<http://clusterlabs.org/doc/en-US/Pacemaker/1.1-plugin/html-single/Clusters_from_Scratch/index.html#_configuring_cman> >> > >> but >> when I type cman_tools nodes only one node is >> online even >> thought the cluster.conf is propogated in other >> node as well. >> >> what could be the reason, in node1, cman_tool nodes >> shows >> only node1 online, in node2 it shows only node2 is >> online. >> How to make two nodes as online, even thought CMAN >> service >> is running in both nodes. >> >> Thanks in advance. >> >> Regards, >> Gopal >> >> >> >> >> >> >> ______________________________**___________________ >> Pacemaker mailing list: Pacemaker@oss.clusterlabs.org >> >> <mailto:Pacemaker@oss.**clusterlabs.org<Pacemaker@oss.clusterlabs.org> >> > >> >> http://oss.clusterlabs.org/__**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/__mailman/listinfo/pacemaker> >> >> >> <http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker> >> > >> >> Project Home: http://www.clusterlabs.org >> Getting started: >> >> http://www.clusterlabs.org/__**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/__doc/Cluster_from_Scratch.pdf> >> >> >> <http://www.clusterlabs.org/**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf> >> > >> Bugs: http://bugs.clusterlabs.org >> >> >> >> -- >> Cheers, >> Florian Crouzat >> >> ______________________________**___________________ >> Pacemaker mailing list: Pacemaker@oss.clusterlabs.org >> <mailto:Pacemaker@oss.**clusterlabs.org<Pacemaker@oss.clusterlabs.org> >> > >> >> http://oss.clusterlabs.org/__**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/__mailman/listinfo/pacemaker> >> >> >> <http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker> >> > >> >> Project Home: http://www.clusterlabs.org >> Getting started: >> >> http://www.clusterlabs.org/__**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/__doc/Cluster_from_Scratch.pdf> >> >> >> <http://www.clusterlabs.org/**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf> >> > >> Bugs: http://bugs.clusterlabs.org >> >> >> >> >> ______________________________**_________________ >> Pacemaker mailing list: Pacemaker@oss.clusterlabs.org >> http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker> >> >> Project Home: http://www.clusterlabs.org >> Getting started: http://www.clusterlabs.org/** >> doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf> >> Bugs: http://bugs.clusterlabs.org >> >> > > -- > Cheers, > Florian Crouzat > > ______________________________**_________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/**mailman/listinfo/pacemaker<http://oss.clusterlabs.org/mailman/listinfo/pacemaker> > > Project Home: http://www.clusterlabs.org > Getting started: > http://www.clusterlabs.org/**doc/Cluster_from_Scratch.pdf<http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf> > Bugs: http://bugs.clusterlabs.org >
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