On 02/12/2007, Dave Augustus davea@ingraftedsoftware.com wrote:
We are in the middle of migrating to a new colo and I first heard about Cluster Suite with the release of 5.
Our old colo used 2 different 2-node clusters using hearbeat version 1. We had a 2-node cluster in Active/passive for the LVS director and 4 nodes as real servers. Our other 2-node cluster was file servers.
I saw the Redhat Cluster Suite (RCS) and spent 2 weeks trying to implement it- without success. I ran into bugs and couldn't get it to work right.
Thanks. That's helpful to know.
(Parenthecally let me say this: VERSION 2 ROCKS! With version 1, you are limited to 2 nodes. With 2, as many as you want.)
Yes I know that heartbeat 2.x should rock - when it runs. But having multiple core dumps on my filesystem doesn't exactly increase my confidence in it.
So I went back to heartbeat and learned version 2. Now, we have a 6-node cluster where ANY NODE can be a REAL SERVER OR a LVS DIRECTOR. It was really
That's my plan - to put both director and "real servers" on the same two nodes. As far as I'm aware it's possible also with version 1.
cool when I learned how to do it. I spent 2 more weeks learning it BUT I have a solution that works and has been stable since inception. Note that we left the file servers in their own 2 node cluster.
Which platform is it? Is it CentOS 5 x86_64 on an Intel Xeon?
I suspect that maybe my problems are connected with this particular architecture.
And possibly a general CentOS question - Is it practical to just install i386 packages of heartbeat on an x86_64 system?
So, in summary, from my experience:
- forget RCS
- use Heartbeat in version 2 mode to control both LVS and REAL Server
functionality. 3. This will allow you to sleep at night.
Enjoy!
Thanks.
--Amos