Re: Oracle alternatives
- From: Sean Hull <shull@xxxxxxxxxx>
- To: mhthomas <qnxodba@xxxxxxxxx>
- Date: Sat, 7 May 2005 17:45:05 -0400 (EDT)
> 1) There is an article on Postgres replication in the current issue
> (June 2005) of Linux Journal, "Database Replication with Slony-l", and
> I wonder if you could comment?
> PS: I mean technically, not about a product that sounds like slow-ny. ;-)
I'm a big Linux Journal reader myself. When I saw the Postgres
replication article I jumped right to it. But when I got this part I
was a bit concerned:
"Again, by examining the content of the contact table of contactdb_slave
database, you will notice that the row was removed from the slave node
correctly. -- Instead of comparing the information for contactdb and
contactdb_slave manually, we easily an automate this process with a smiple
script, as shown in Listing 3. Such a scriptcould be executed regularly
to ensure that all nodes are in sync, notifying the administrator if that
is no longer the case."
Of course they're talking about master-slave replication, so if they get
out of sync, then the admin can resync from the master again.
> 2) Another article in the same mag, "ATA over Ethernet", e.g. AoE
> spec, using Coraid EtherDrive shelf looks interesting too. I'd like to
> test a couple node 10g RAC database with the EtherDrive evaluation kit
> (single ATA drive on AoE) instead of firewire, etc. AoE works with a
> cluster filesystem but not with software RAID in a cluster. These guys
> do have a RAIDblade to avoid software RAID. Whatever, its interesting
Yep, I tore this article out. It's on my todo list to get RAC running on
this too.
Sean
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Sean Hull, Senior Consultant
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Sean Hull, founder and senior consultant of Heavyweight Internet Group
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bridging Open Source software and integration with the world's best
performing database, Oracle. http://www.oreilly.com/catalog/oracleopen/
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