[Linux-cluster] Cannot connect to rgmanager

[emmanuel segura]

Stonith = fencing, so the same thing

For use corosync with udp look here
http://www.thatsgeeky.com/2011/12/installing-corosync-on-ec2/

2013/2/27 Maxwell, Jamison [HDS] <JMaxwell at pbp1.com>

> Figured it out!  I wasn’t allowing multicast on the vlan interface on my
> switch.  I never even thought about this as an issue because I’m not
> routing, the nodes are right next to each other.  However, tcpdump showed
> that I was sending tons of multicast, but not receiving any.  As soon as I
> enabled multicast on the vlan interface everything came up.****
>
> ** **
>
> Also, in frustration I dropped cman, rgmanager, modclusterd in favor of
> corosync + pacemaker, but I believe I would have been as successful with
> either option.  I think I prefer stonith to fencing, though.****
>
> ** **
>
> Lastly, is there a way to use unicast?  I realize that multicast would be
> greatly preferable in 3+ node clusters, but in this two node it would be
> easier to use unicast.****
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> Jamison Maxwell
> Sr. Systems Administrator
> HD Supply - Facilities Maintenance****
>
> ** **
>
> *From:* linux-cluster-bounces at redhat.com [mailto:
> linux-cluster-bounces at redhat.com] *On Behalf Of *emmanuel segura
> *Sent:* Sunday, February 24, 2013 1:32 PM
>
> *To:* linux clustering
> *Subject:* Re: [Linux-cluster] Cannot connect to rgmanager****
>
> ** **
>
> Hello Sorry
>
> For my late reply, try to configure your fence devices and after start the
> rgmanager service
>
> ****
>
> 2013/2/19 Maxwell, Jamison [HDS] <JMaxwell at pbp1.com>****
>
> Yes, rgmanager, cman, ricci, and modclustered are started and start
> automatically in run levels three through five…****
>
>  ****
>
>  ****
>
>  ****
>
>  ****
>
> Jamison Maxwell
> Sr. Systems Administrator****
>
> HD Supply - Facilities Maintenance****
>
>  ****
>
> *From:* linux-cluster-bounces at redhat.com [mailto:
> linux-cluster-bounces at redhat.com] *On Behalf Of *emmanuel segura
> *Sent:* Tuesday, February 19, 2013 11:03 AM
> *To:* linux clustering
> *Subject:* Re: [Linux-cluster] Cannot connect to rgmanager****
>
>  ****
>
> did you started rgmanager?****
>
> 2013/2/19 Maxwell, Jamison [HDS] <JMaxwell at pbp1.com>****
>
> I am attempting to create a two node cluster where the only resource
> required would be a shared IP address, however, after a couple of attempts
> I continue to fail.  I have followed a guide located at
> http://www.openlogic.com/wazi/bid/188071/ .  Everything appears to work
> fine until I get to the point where I actually add the IP address resource,
> both cluster nodes appear as online and quorate and the configuration
> validates, but will not enable the new resource.  Below I am including any
> information that I think may be relevant, but feel free to ask for more.**
> **
>
>  ****
>
> ===========================================****
>
> [root@* hostname*]# cat /etc/cluster/cluster.conf****
>
> <?xml version="1.0"?>****
>
> <cluster config_version="4" name="hacluster">****
>
>         <cman expected_votes="1" two_node="1"/>****
>
>         <clusternodes>****
>
>                 <clusternode name="*actual name of node*" nodeid="1"
> votes="1">****
>
>                         <fence>****
>
>                                 <method name="single"/>****
>
>                         </fence>****
>
>                 </clusternode>****
>
>                 <clusternode name="* actual name of node* " nodeid="2"
> votes="1">****
>
>                         <fence>****
>
>                                 <method name="single"/>****
>
>                         </fence>****
>
>                 </clusternode>****
>
>         </clusternodes>****
>
>         <fencedevices/>****
>
>         <rm>****
>
>                 <failoverdomains/>****
>
>                 <resources/>****
>
>                 <service autostart="1" exclusive="0" name="IP"
> recovery="relocate">****
>
>                         <ip address="*actual shared IP address*"
> monitor_link="on" sleeptime="10"/>****
>
>                 </service>****
>
>         </rm>****
>
> </cluster>****
>
> ===========================================****
>
>  ****
>
> [root@* hostname*]# clusvcadm -e IP****
>
> Local machine trying to enable service:IP...Could not connect to resource
> group manager****
>
> ===========================================****
>
>  ****
>
> [root@* hostname*]# strace clusvcadm -e IP****
>
> …****
>
> connect(5, {sa_family=AF_FILE, path="/var/run/cluster/rgmanager.sk"},
> 110) = -1 ENOENT (No such file or directory)****
>
> close(5)                                = 0****
>
> write(1, "Could not connect to resource gr"..., 44Could not connect to
> resource group manager****
>
> ) = 44****
>
> exit_group(1)                           = ?****
>
> ===========================================****
>
>  ****
>
> I would most like to call your attention to the line “write(1, "
> connect(5, {sa_family=AF_FILE, path="/var/run/cluster/rgmanager.sk"},
> 110) = -1 ENOENT (No such file or directory)”.  There was also a someone
> who mailed this list with what appears to be the same problem, however, no
> issue is present in the conversation.  The topic is located here:
> http://www.redhat.com/archives/linux-cluster/2012-August/msg00156.html .
> ****
>
>  ****
>
> This is version 6.3, no iptables and no selinux until I can get this
> working.  I greatly appreciate any assistance that can be offered.****
>
>  ****
>
>  ****
>
> Jamison Maxwell
> Sr. Systems Administrator
> HD Suppy - Facilities Maintenance****
>
>  ****
>
>
> --
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>
>
>
>
> --
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