[Linux-cluster] Basic Active Active File Server

[Michael Lackner]

Greets.

For what it's worth, I have had a similar problem, with our central 
networking
department telling me that "it should work". I have had a single node 
unable to
join the 3-node cluster I'm currently trying to get working. All 
physical machines,
no VMs.

Solution: Hook them all up on the same switch, no more problems with 
that part...

Jason Fitzpatrick wrote:
> Hi..
>
> I have tried both multicast and broadcast to no avail, as above I am
> moving the systems to the same ESX to try and rule out the networking
> end of things, I have not tried the tcpdump but was running wireshark
> in an attempt to do the same as you recommended
>
> Jay
>
> On 21 June 2010 16:49, Kaloyan Kovachev <kkovachev at varna.net> wrote:
>   
>> Hi,
>> On Mon, 21 Jun 2010 16:07:34 +0100, Jason Fitzpatrick
>> <jayfitzpatrick at gmail.com> wrote:
>>     
>>> Hi all
>>>
>>> I am having no end of trouble getting a basic Active Active Cluster
>>> working. at the moment it is in test / proof of concept and has manual
>>> fencing in place but I cannot for the life of me get the 2 nodes to
>>> join to the one cluster (they both report joined in crm_tool status
>>> but only to a local clustered instance if that makes any sence)
>>>
>>> I have tried to use luci and system-config-cluster to get this up and
>>> running and have been at it over a week, the network guys swear that
>>> there is nothing blocking multicast traffic between them and the
>>> firewalls have been disabled (they are on the same VLAN but connected
>>> to different switches) servers have been rebuilt and have RHEL 5.5
>>> installed
>>>
>>>       
>> your problem is the multicast traffic - check with tcpdump if it is
>> comming to the other server at all (network) and if it is, then doublecheck
>> the firewall.
>> alternatively you may try using broadcast instead of multicast
>>
>>     
>>> Shared Storage is being provided by an Active Active DRBD setup
>>> (tested and working)
>>>
>>> I have attached a copy of my cluster.conf
>>>
>>> Thanks in advance
>>>
>>> Jay
>>>
>>> --
>>>
>>> "The only difference between saints and sinners is that every saint
>>> has a past while every sinner has a future. "
>>> — Oscar Wilde
>>>       
>> --
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-- 
Michael Lackner
Chair of Information Technology, University of Leoben
IT Administration
michael.lackner at mu-leoben.at | +43 (0)3842/402-1505