[ZODB-Dev] Horizon for highly-available ZODB storage?

[Fabiano Weimar dos Santos]

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Em Qui 03 Jan 2002 18:12, sean.upton@uniontrib.com escreveu:
> Happy New Year, all!
>
> I wanted to query this list to get some input on what options are likely to
> be available for maintaining a highly-available ZEO storage server within
> the next 6-7 months.  My company has a very large, highly-demanding project
> we are just getting started on that will heavily utilize multiple ZODB
> instances on a ZEO cluster with a 2-box ZSS strategy.  We currently do this
> for some less-demanding projects and attain high-availability across 2
> concurrently running ZSS nodes using the Linux-HA project's Heartbeat
> clustering software; our means of replication of our FileStorage Data.fs
> from ZSS #1 to ZSS #2 is a simple daily file transfer (FTP) and restart of
> the ZSS process; 

Ok, this is fully functional but i have an alternative solution, until we 
don't have the resources for ZEO cluster replication. Do you know DRDB ??? 
You could use DRDB file system replication with journaled file systems, like 
ReiserFS or Ext3. This solution, with the help of heartbeat and IPMON is a 
complete alternative for you problem. If you want to know more information 
about, please take a look at the page:

http://200.196.30.26/~sulamita.garcia/ha/links.html

There are a list of links that will help you to improve the resource of your 
cluster, until a definitive ZEO solution ("the state of art").

> this is ok, since this data is updated usually just once
> daily.  But our upcoming projects will involve bigger ODBs that update far
> more often, so I wanted to get some input on what options are both
> available now, and also what new strategies will likely be available later
> in the upcoming year.

- --snip--

- -- 
Fabiano Weimar dos Santos
X3ng Web Technology
Consultoria e Desenvolvimento
Celular: 54 9114-7230
ICQ: 40187432
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