RE: Installation problems

Pay more attention to this email vs mine.. Mine had some misleading
information in it.  I forgot you don't have to configure the virtual
interfaces.

R. 

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Simone
Segato
Sent: Wednesday, August 10, 2005 11:29 AM
To: [email protected]
Subject: Re: Installation problems

On Wed, 2005-08-10 at 09:58, Robert Bates wrote:
> I have six servers that I am trying to set up in the High Capacity 
> High Availability and Load Balancing topology on Fedora Core 4 and am 
> fairly new to Linux.
>  
> Problem 1:  After setting up heartbeat on my two Linux Directors, when

> I use ip addr sh eth0, the virtual IP addresses don't show up.
>  
> Problem 2:  After setting up arptables on all of my real servers ( 
> wish I had tested the first one first) I have lost all connectivity to

> the network with these servers except for my one RH9 server.  There is

> also an IP address conflict between two servers even though there is 
> nothing on the network with the IP addresses I am trying to use.
>  
> Any Suggestions??
>  
> Horms- interested in doing a set up on my network remotely?

Hello Robert,

I'm fairly new to Ultramonkey as well, but thought to suggest a couple
of things that may help you out.

Problem 1:
- Have you setup the virutal IP's in the haresources file located in the
/etc/ha.d directory?  I'm assuming you have.  There should be a template
file for you.  I have it configured at the bottom on my servers to look
something like this:

UM01	IPaddr::192.168.1.1/24/eth0 \
	IPaddr::192.168.1.2/24/eth0 \
	ldirectord::ldirectord.cf

Also, make sure that ldirectord is stopped and then restart heartbeat. 
Heartbeat should always startup first which will in turn initialize the
virtual IPs and start ldirectord.  You should not need to start
ldirectord manually unless of course you made changes to the
ldirectord.cf file (correct me if I'm wrong here).  It does take one to
two minutes for the virtual IPs to be initialized by heartbeat.  You
shouldn't have to create the virtual IP's using ifconfig or ip commands,
heartbeat takes care of this by looking in the haresources file.

Problem 2:
- Did you setup the arptables by stopping arptables_jf, issuing the
arptables-noarp-addr x.x.x.x start, then issuing arptables_jf save and
then arptables_jf start?  If not make sure you've done that for your
virtual IPs on your real servers.  Make sure not to do this for your
real IPs on your real servers.
- I'm assuming you installed arptables-noarp-addr... I've done stranger
things myself.
- Inspect your arptables by issuing this command /sbin/arptables -L -v
-n.  You should see how many hits your virtual addresses are getting. 
If you see nothing or not all your virtual IPs from this command then
you must enter them using the command arptables_jf and
arptables-noarp-addr as I mentioned above.

Again, I'm also fairly new at this as well, but have run into some snags
myself such as your Problem #1.  Hope this helps.

Simone.


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