[Linux-cluster] Re: [rhn-users] Red Hat Cluster Suite Question

Greg Forte gforte at leopard.us.udel.edu
Thu Jul 13 14:36:41 UTC 2006


Re-routing since this was a reply to this thread originally started on a 
different list:

OK, you've given most of the info I asked for, but not the primary IP 
addresses of the machine's involved.  My guess is that you've attempted 
to use private 192.168.x.x addresses for the machines primary 
interfaces, with a public address for the cluster service.  I'm guessing 
this won't work, but I don't really know for sure.  Where is the address 
192.168.35.2 (that shows up in your log snippet) being used?  Judging 
from the cluster.conf, it's not the cluster service address; is it the 
primary address (on eth0) of one of the machines, or is it the heartbeat 
(eth1) address, or none of the above?

-g

Razi Ahmad wrote:
> Greg,
> 
> Thanks for the response and for pointing out the existence of the linux-cluster mailing list; I just subscribed and will be posting my question there as well.
> 
> I've attached my cluster.xml file. Also, when I refer to starting "local cluster services", I'm using the menu item terminology as I'm a newbie at this.
> 
> Thanks again,
> 
> Razi
> 
> --
> Razi Ahmad
> Network Administrator
> Information Technology
> Leonard N. Stern School of Business, New York University
> 212-998-0172
> razi.ahmad at stern.nyu.edu
> 
> ----- Original Message -----
> From: Greg Forte <gforte at leopard.us.udel.edu>
> Date: Wednesday, July 12, 2006 9:51 pm
> Subject: Re: [rhn-users] Red Hat Cluster Suite Question
> 
>> Please paste or attach your cluster.conf, and show the exact 
>> commands 
>> you're using when you start the "local cluster services" (not sure 
>> what 
>> you mean by "local" in this context) and when you "try manually 
>> moving 
>> the service".  Also, what are the primary IP addresses (configured 
>> in 
>> /etc/sysconfig/network-scripts/ifcfg-eth*).  I suspect that you are 
>> either trying to use a cluster service IP address that is not in 
>> the 
>> same subnet as the primary IP addresses, or else that you are 
>> trying to 
>> use one of the primary IP addresses as the cluster service IP 
>> address, 
>> but those are only guesses until I see all the info.
>>
>> BTW, this sort of question is much more likely to get answered on 
>> the 
>> linux-cluster list:
>>
>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>
>> I highly recommend you join it if you haven't already.
>>
>> -g
>>
>> Razi Ahmad wrote:
>>> Hi,
>>>
>>> I have two servers running RHEL 3 (installed/configured 
>> identically via kickstart) with Red Hat Cluster Suite 3 installed 
>> on both. What we want to do is to create a two-node Active/Passive 
>> failover cluster for our mail store running Sun JES Messaging 
>> Server 6.1. The shared storage is on an EMC CLARiiON CX500 SAN.
>>> I have created the shared partition (and raw devices) using 
>> parted and have connected the heartbeat link between both machines 
>> using a crossover cable. I've assigned IP addresses on the same 
>> subnet to each of the NICs dedicated for the heartbeat link; both 
>> machines are able to ping each other through the heartbeat link. 
>> I've also connected both servers to APC PDUs and have verified that 
>> I can reboot one machine from the other using the clufence command.
>>> I am able to start the local cluster services on both machines, 
>> but when I try manually moving the service from one node to the 
>> other, I get an error message that says "An error has occurred 
>> while running a system command. Please check logs for details." 
>> When I checked the cluster.log file (I modified my syslog settings 
>> to log cluster messages to /var/log/cluster.log), I see the 
>> following messages:
>>> Jul 12 10:00:33 mailcluster-node1 clulockd[11744]: <err> select 
>> error: No such device or address
>>> Jul 12 10:00:33 mailcluster-node1 clulockd[11744]: <debug> 
>> ioctl(fd,SIOCGARP,ar [eth0]): No such device or address
>>> Jul 12 10:00:33 mailcluster-node1 clulockd[11744]: <warning> 
>> Dropping connect from 192.168.35.2: Not in subnet!
>>> Jul 12 10:00:33 mailcluster-node1 clulockd[11744]: <err> select 
>> error: No such device or address
>>> Both machines are configured to use interface eth1 as the 
>> heartbeat link, with eth0 on each machine connected to the rest of 
>> our network.
>>> Any help would be greatly appreciated.
>>>
>>> Thanks.
>>>
>>> --
>>> Razi Ahmad
>>> Network Administrator
>>> Information Technology
>>> Leonard N. Stern School of Business, New York University
>>> 212-998-0172
>>> razi.ahmad at stern.nyu.edu
>>>
>>> _______________________________________________
>>> rhn-users mailing list
>>> rhn-users at redhat.com
>>> https://www.redhat.com/mailman/listinfo/rhn-users
>>>
>> _______________________________________________
>> rhn-users mailing list
>> rhn-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/rhn-users
>>
>>
>> ------------------------------------------------------------------------
>>
>> <?xml version="1.0"?>
>> <cluconfig version="3.0">
>>   <clumembd broadcast="no" interval="750000" loglevel="7" multicast="yes" multicast_ipaddress="225.0.0.11" thread="yes" tko_count="20"/>
>>   <cluquorumd loglevel="7" pinginterval="2" tiebreaker_ip=""/>
>>   <clurmtabd loglevel="7" pollinterval="4"/>
>>   <clusvcmgrd loglevel="7"/>
>>   <clulockd loglevel="7"/>
>>   <cluster config_viewnumber="36" key="fb17642ed64432283057fed0c6fac0b1" name="mail_cluster"/>
>>   <sharedstate driver="libsharedraw.so" rawprimary="/dev/raw/raw1" rawshadow="/dev/raw/raw2" type="raw"/>
>>   <members>
>>     <member id="0" name="mailcluster-node1" watchdog="yes">
>>       <powercontroller id="0" ipaddress="x.x.x.x" password="<password>" port="2" type="apcmaster" user="<username>"/>
>>     </member>
>>     <member id="1" name="mailcluster-node2" watchdog="yes">
>>       <powercontroller id="0" ipaddress="x.x.x.x" password="<password>" port="1" type="apcmaster" user="<username>"/>
>>     </member>
>>   </members>
>>   <services>
>>     <service checkinterval="0" failoverdomain="mail-domain" id="0" maxfalsestarts="0" maxrestarts="0" name="sunmail" userscript="/etc/init.d/sunmail">
>>       <service_ipaddresses>
>>         <service_ipaddress broadcast="128.122.130.255" id="0" ipaddress="128.122.130.250" monitor_link="0" netmask="255.255.255.0"/>
>>       </service_ipaddresses>
>>       <device id="0" name="/dev/emcpowerb1" sharename="">
>>         <mount forceunmount="yes" fstype="ext2" mountpoint="/mstore" options="rw"/>
>>       </device>
>>     </service>
>>   </services>
>>   <failoverdomains>
>>     <failoverdomain id="0" name="mail-domain" ordered="yes" restricted="yes">
>>       <failoverdomainnode id="0" name="mailcluster-node1"/>
>>       <failoverdomainnode id="1" name="mailcluster-node2"/>
>>     </failoverdomain>
>>   </failoverdomains>
>> </cluconfig>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> rhn-users mailing list
>> rhn-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/rhn-users


-- 
Greg Forte
gforte at udel.edu
IT - User Services
University of Delaware
302-831-1982
Newark, DE




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