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Re: [Linux-cluster] 3 node cluster problems



How is your Cluster connections connected. (ie. Are you using a hub,switch or direct connecting the heartbeat cables) ?

Dalton, Maurice wrote:
Still having the problem. I can't figure it out.
I just upgraded to the latest 5.1 cman.. No help.!!!!!!!!!


-----Original Message-----
From: linux-cluster-bounces redhat com
[mailto:linux-cluster-bounces redhat com] On Behalf Of Bennie Thomas
Sent: Tuesday, March 25, 2008 10:57 AM
To: linux clustering
Subject: Re: [Linux-cluster] 3 node cluster problems


Glad they are working. I have not used lvm with our Clusters. You know have peaked
my curiosity and I will have to try building one. So were you also using

GFS ?

Dalton, Maurice wrote:
Sorry but security here will not allow me to send host files

BUT.


I was getting this in /var/log/messages on csarcsys3

Mar 25 15:26:11 csarcsys3-eth0 ccsd[7448]: Cluster is not quorate.
Refusing connection.
Mar 25 15:26:11 csarcsys3-eth0 ccsd[7448]: Error while processing
connect: Connection refused
Mar 25 15:26:12 csarcsys3-eth0 dlm_controld[7476]: connect to ccs
error
-111, check ccsd or cluster status
Mar 25 15:26:12 csarcsys3-eth0 ccsd[7448]: Cluster is not quorate.
Refusing connection.
Mar 25 15:26:12 csarcsys3-eth0 ccsd[7448]: Error while processing
connect: Connection refused


I had /dev/vg0/gfsvol on these systems.

I did a lvremove
Restarted cman on all systems and for some strange reason my clusters
are working.

It doesn't make any sense.

I can't thank you enough for your help.......!!!!!!


Thanks.


-----Original Message-----
From: linux-cluster-bounces redhat com
[mailto:linux-cluster-bounces redhat com] On Behalf Of Bennie Thomas
Sent: Tuesday, March 25, 2008 10:27 AM
To: linux clustering
Subject: Re: [Linux-cluster] 3 node cluster problems

I am currently running several 3-node cluster without a quorum disk. However, If you want your cluster to run if only one node is up then you will need a quorum disk. Can you send your /etc/hosts file for all systems, Also, could there be another node name called csarcsys3-eth0 in your NIS or DNS

I configured some using Conga and some with system-config-cluster.
When
using the system-config-cluster
I basically run the config on all nodes; just adding the nodenames and

cluster name. I reboot all nodes
to make sure they see each other then go back and modify the config
files.

The file /var/log/messages should also shed some light on the problem.

Dalton, Maurice wrote:
Same problem.

I now have qdiskd running.

I have ran diff's on all three cluster.conf files.. all are the same

[root csarcsys1-eth0 cluster]# more cluster.conf

<?xml version="1.0"?>

<cluster config_version="6" name="csarcsys5">

<fence_daemon post_fail_delay="0" post_join_delay="3"/>

<clusternodes>

<clusternode name="csarcsys1-eth0" nodeid="1" votes="1">

<fence/>

</clusternode>

<clusternode name="csarcsys2-eth0" nodeid="2" votes="1">

<fence/>

</clusternode>

<clusternode name="csarcsys3-eth0" nodeid="3" votes="1">

<fence/>

</clusternode>

</clusternodes>

<cman/>

<fencedevices/>

<rm>

<failoverdomains>

<failoverdomain name="csarcsysfo" ordered="0" restricted="1">

<failoverdomainnode name="csarcsys1-eth0" priority="1"/>

<failoverdomainnode name="csarcsys2-eth0" priority="1"/>

<failoverdomainnode name="csarcsys3-eth0" priority="1"/>

</failoverdomain>

</failoverdomains>

<resources>

<ip address="172.24.86.177" monitor_link="1"/>

<fs device="/dev/sdc1" force_fsck="0" force_unmount="1" fsid="57739" fstype="ext3" mountpo

int="/csarc-test" name="csarcsys-fs" options="rw" self_fence="0"/>

</resources>

</rm>

<quorumd interval="4" label="csarcsysQ" min_score="1" tko="30"
votes="2"/>
</cluster>

More info from csarcsys3

[root csarcsys3-eth0 cluster]# clustat

msg_open: No such file or directory

Member Status: Inquorate

Member Name ID Status

------ ---- ---- ------

csarcsys1-eth0 1 Offline

csarcsys2-eth0 2 Offline

csarcsys3-eth0 3 Online, Local

/dev/sdd1 0 Offline

[root csarcsys3-eth0 cluster]# mkqdisk -L

mkqdisk v0.5.1

/dev/sdd1:

Magic: eb7a62c2

Label: csarcsysQ

Created: Wed Feb 13 13:44:35 2008

Host: csarcsys1-eth0.xxx.xxx.nasa.gov

[root csarcsys3-eth0 cluster]# ls -l /dev/sdd1

brw-r----- 1 root disk 8, 49 Mar 25 14:09 /dev/sdd1

clustat from csarcsys1

msg_open: No such file or directory

Member Status: Quorate

Member Name ID Status

------ ---- ---- ------

csarcsys1-eth0 1 Online, Local

csarcsys2-eth0 2 Online

csarcsys3-eth0 3 Offline

/dev/sdd1 0 Offline, Quorum Disk

[root csarcsys1-eth0 cluster]# ls -l /dev/sdd1

brw-r----- 1 root disk 8, 49 Mar 25 14:19 /dev/sdd1

mkqdisk v0.5.1

/dev/sdd1:

Magic: eb7a62c2

Label: csarcsysQ

Created: Wed Feb 13 13:44:35 2008

Host: csarcsys1-eth0.xxx.xxx.nasa.gov

Info from csarcsys2

root csarcsys2-eth0 cluster]# clustat

msg_open: No such file or directory

Member Status: Quorate

Member Name ID Status

------ ---- ---- ------

csarcsys1-eth0 1 Offline

csarcsys2-eth0 2 Online, Local

csarcsys3-eth0 3 Offline

/dev/sdd1 0 Online, Quorum Disk

*From:* linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] *On Behalf Of *Panigrahi, Santosh Kumar
*Sent:* Tuesday, March 25, 2008 7:33 AM
*To:* linux clustering
*Subject:* RE: [Linux-cluster] 3 node cluster problems

If you are configuring your cluster by system-config-cluster then no need to run ricci/luci. Ricci/luci needed for configuring the cluster

using conga. You can configure in either ways.

On seeing your clustat command outputs, it seems cluster is partitioned (spilt brain) into 2 sub clusters [Sub1-* **(csarcsys1-eth0, csarcsys2-eth0*) 2-* **csarcsys3-eth0*]. Without a

quorum device you can more often face this situation. To avoid this you can configure a quorum device with a heuristic like ping message.

Use the link
(http://www.redhatmagazine.com/2007/12/19/enhancing-cluster-quorum-with-
qdisk/)
for configuring a quorum disk in RHCS.

Thanks,

S

-----Original Message-----
From: linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] On Behalf Of Dalton,
Maurice
Sent: Tuesday, March 25, 2008 5:18 PM
To: linux clustering
Subject: RE: [Linux-cluster] 3 node cluster problems

Still no change. Same as below.

I completely rebuilt the cluster using system-config-cluster

The Cluster software was installed from rhn, luci and ricci are
running.
This is the new config file and it has been copied to the 2 other

systems

[root csarcsys1-eth0 cluster]# more cluster.conf

<?xml version="1.0"?>

<cluster config_version="5" name="csarcsys5">

<fence_daemon post_fail_delay="0" post_join_delay="3"/>

<clusternodes>

<clusternode name="csarcsys1-eth0" nodeid="1" votes="1">

<fence/>

</clusternode>

<clusternode name="csarcsys2-eth0" nodeid="2" votes="1">

<fence/>

</clusternode>

<clusternode name="csarcsys3-eth0" nodeid="3" votes="1">

<fence/>

</clusternode>

</clusternodes>

<cman/>

<fencedevices/>

<rm>

<failoverdomains>

<failoverdomain name="csarcsysfo" ordered="0"

restricted="1">

<failoverdomainnode

name="csarcsys1-eth0" priority="1"/>

<failoverdomainnode

name="csarcsys2-eth0" priority="1"/>

<failoverdomainnode

name="csarcsys3-eth0" priority="1"/>

</failoverdomain>

</failoverdomains>

<resources>

<ip address="172.xx.xx.xxx" monitor_link="1"/>

<fs device="/dev/sdc1" force_fsck="0"

force_unmount="1" fsid="57739" fstype="ext3" mountpo

int="/csarc-test" name="csarcsys-fs" options="rw" self_fence="0"/>

</resources>

</rm>

</cluster>

-----Original Message-----

From: linux-cluster-bounces redhat com

[mailto:linux-cluster-bounces redhat com] On Behalf Of Bennie Thomas

Sent: Monday, March 24, 2008 4:17 PM

To: linux clustering

Subject: Re: [Linux-cluster] 3 node cluster problems

Did you load the Cluster software via Conga or manually ? You would
have
had to load

luci on one node and ricci on all three.

Try copying the modified /etc/cluster/cluster.conf from csarcsys1 to
the
other two nodes.

Make sure you can ping the private interface to/from all nodes and

reboot. If this does not work

post your /etc/cluster/cluster.conf file again.

Dalton, Maurice wrote:

Yes
I also rebooted again just now to be sure. -----Original Message----- From: linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] On Behalf Of Bennie Thomas Sent: Monday, March 24, 2008 3:33 PM To: linux clustering Subject: Re: [Linux-cluster] 3 node cluster problems When you changed the nodenames in the /etc/lcuster/cluster.conf and
made

sure the /etc/hosts
file had the correct nodenames (Ie. 10.0.0.100 csarcsys1-eth0 csarcsys1-eth0.xxxx.xxxx.xxx.) Did you reboot all the nodes at the sametime ? Dalton, Maurice wrote:
No luck. It seems as if csarcsys3 thinks its in his own cluster
I renamed all config files and rebuilt from system-config-cluster Clustat command from csarcsys3 [root csarcsys3-eth0 cluster]# clustat msg_open: No such file or directory Member Status: Inquorate Member Name ID Status ------ ---- ---- ------ csarcsys1-eth0 1 Offline csarcsys2-eth0 2 Offline csarcsys3-eth0 3 Online, Local clustat command from csarcsys2 [root csarcsys2-eth0 cluster]# clustat msg_open: No such file or directory Member Status: Quorate Member Name ID Status ------ ---- ---- ------ csarcsys1-eth0 1 Online csarcsys2-eth0 2 Online, Local csarcsys3-eth0 3 Offline -----Original Message----- From: linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] On Behalf Of Bennie
Thomas
Sent: Monday, March 24, 2008 2:25 PM
To: linux clustering Subject: Re: [Linux-cluster] 3 node cluster problems You will also, need to make sure the clustered nodenames are in
your
/etc/hosts file.
Also, make sure your cluster network interface is up on all nodes
and
that the
/etc/cluster/cluster.conf are the same on all nodes. Dalton, Maurice wrote:
The last post is incorrect.
Fence is still hanging at start up. Here's another log message. Mar 24 19:03:14 csarcsys3-eth0 ccsd[6425]: Error while processing connect: Connection refused Mar 24 19:03:15 csarcsys3-eth0 dlm_controld[6453]: connect to ccs error -111, check ccsd or cluster status *From:* linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] *On Behalf Of *Bennie
Thomas
*Sent:* Monday, March 24, 2008 11:22 AM
*To:* linux clustering *Subject:* Re: [Linux-cluster] 3 node cluster problems try removing the fully qualified hostname from the cluster.conf
file.

Dalton, Maurice wrote:
I have NO fencing equipment I have been task to setup a 3 node cluster Currently I have having problems getting cman(fence) to start Fence will try to start up during cman start up but will fail I tried to run /sbin/fenced -D - I get the following 1206373475 cman_init error 0 111 Here's my cluster.conf file <?xml version="1.0"?> <cluster alias="csarcsys51" config_version="26" name="csarcsys51"> <fence_daemon clean_start="0" post_fail_delay="0"
post_join_delay="3"/>
<clusternodes>
<clusternode name="csarcsys1-eth0.xxx.xxxx.nasa.gov" nodeid="1"
votes="1">
<fence/>
</clusternode> <clusternode name="csarcsys2-eth0.xxx.xxxx.nasa.gov" nodeid="2"
votes="1">
<fence/>
</clusternode> <clusternode name="csarcsys3-eth0.xxx.xxxxnasa.gov" nodeid="3"
votes="1">
<fence/>
</clusternode> </clusternodes> <cman/> <fencedevices/> <rm> <failoverdomains> <failoverdomain name="csarcsys-fo" ordered="1" restricted="0"> <failoverdomainnode name="csarcsys1-eth0.xxx.xxxx.nasa.gov"
priority="1"/>
<failoverdomainnode name="csarcsys2-eth0.xxx.xxxx.nasa.gov"
priority="1"/>
<failoverdomainnode name="csarcsys2-eth0.xxx.xxxx.nasa.gov"
priority="1"/>
</failoverdomain>
</failoverdomains> <resources> <ip address="xxx.xxx.xxx.xxx" monitor_link="1"/> <fs device="/dev/sdc1" force_fsck="0" force_unmount="1"
fsid="57739"
fstype="ext3" mountpo
int="/csarc-test" name="csarcsys-fs" options="rw" self_fence="0"/> <nfsexport name="csarcsys-export"/> <nfsclient name="csarcsys-nfs-client" options="no_root_squash,rw" path="/csarc-test" targe t="xxx.xxx.xxx.*"/> </resources> </rm> </cluster> Messages from the logs ar 24 13:24:19 csarcsys2-eth0 ccsd[24888]: Cluster is not quorate. Refusing connection. Mar 24 13:24:19 csarcsys2-eth0 ccsd[24888]: Error while processing connect: Connection refused Mar 24 13:24:20 csarcsys2-eth0 ccsd[24888]: Cluster is not
quorate.
Refusing connection.
Mar 24 13:24:20 csarcsys2-eth0 ccsd[24888]: Error while processing connect: Connection refused Mar 24 13:24:21 csarcsys2-eth0 ccsd[24888]: Cluster is not
quorate.
Refusing connection.
Mar 24 13:24:21 csarcsys2-eth0 ccsd[24888]: Error while processing connect: Connection refused Mar 24 13:24:22 csarcsys2-eth0 ccsd[24888]: Cluster is not
quorate.
Refusing connection.
Mar 24 13:24:22 csarcsys2-eth0 ccsd[24888]: Error while processing connect: Connection refused Mar 24 13:24:23 csarcsys2-eth0 ccsd[24888]: Cluster is not
quorate.
Refusing connection.
Mar 24 13:24:23 csarcsys2-eth0 ccsd[24888]: Error while processing connect: Connection refused
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