Well I need psql because I have a large need of triggers, stored
proceedures and views.  At the time I implemented most all of that
stuff was "coming soon" in mysql.

I can work around replication with other devices, but I can't
work around triggers.

Thanks for the help, I'll stick with DRBD replicating psql.

--
David A. Niblett               | email: [EMAIL PROTECTED]
Network Administrator          | Phone: (352) 334-3400
Gainesville Regional Utilities | Web: http://www.gru.net/



-----Original Message-----
From: Simon Lange [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, May 18, 2005 1:02 PM
To: 'DBMail mailinglist'
Subject: RE: [Dbmail] DbMail in a ISP Cluster



Well when we did evaluate pgsql it didnt cover replication. maybe u are
right that they dont implement replication because there are thridparty
solutions available. but ur reffered solution is still unstable (just read
their mailinglists and checked up their versions) and if ppl use it for
productive purposes... -- well their business ;) however, i could not find
any stable solution for circle replication for pgsql so far. maybe there are
sum available but why searching if there is a databaseserver which is fast
efficient and has replication built in (and in the next major update also
native clustering)? it was no meant as an offense but its a good question:
why usin pgsql-without-replication + thirdparty replication and not using
mysql-WITH-replication?!

be sure i DO understand pgsql and i know why im not using it. :) i never
meant to piss on pgsql. ok i would never use it for our servers but thats my
opinion. ;) so u dont piss on me just because mysql has the better
replication system built-in! ;) and as far as i can remember the inital
question to this thread was if there are ppl out with dbmail/clustering
experience... yes there are...

regards

Simon

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Matthew T. O'Connor
Sent: Wednesday, May 18, 2005 6:42 PM
To: DBMail mailinglist
Subject: Re: [Dbmail] DbMail in a ISP Cluster

The Postgresql development team made an intentional design decided not to
include any one replication system into the main CVS tree simply because
there are many types of fundamentally different replication that serve
different purposes. 

Slony is well tested, and is used in many production environments.  It is a
master-slave replication system, it works quite well and is supported by the
slony team.  I would not call it non-native.  In addition there are several
other replication implementation that serve different purposes, some are
commercially supported by a vendor.

Please don't spread FUD about a system you don't understand.  I have not and
would not say a single negative thing about mysql or its replication because
I don't have experience with it.

Matt

Simon Lange wrote:

>varieties means ports?! branches of the original pgsql source?! or are
>these thridparty solutions which add external functionalities which 
>pgsql does not provide? however, i would prefer a native replication
instead a workaround.
>;) especially on productive environments. ;)
>
>however dbmail/mysql provides a tested and working clustering (circle
>replication) with on fail solution for all those who may need it. so
>why using a pgsql with non-native replication if there is a stable 
>native mysql replication solution available?
>
>regards
>
>Simon
>
>
>Simon Lange   //Director
>========================
>www.polynaturedesign.com
>+49[0]4131 220121 PHONE
>+49[0]4131 224730 FAX
>+49[0]16090300077 CELL
>========================
>
>-----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
>Behalf Of Matthew T. O'Connor
>Sent: Wednesday, May 18, 2005 5:58 PM
>To: DBMail mailinglist
>Subject: Re: [Dbmail] DbMail in a ISP Cluster
>
>Postgresql does support replication, in fact there are several
>different varieties of it available, check out slony1 among others.  
>What it doesn't support is automatic failover.
>
>Simon Lange wrote:
>
>  
>
>>pgsql does not support replication. thats why we do use mysql -
>>clustering is announced for mysql5 :D
>>
>>if a database goes down, exim recognizes this and temporaly refuses
>>any mails which causing foreign mta to address the other mta...
>>
>>regards
>>
>>Simon
>>
>>
>>Simon Lange   //Director
>>========================
>>www.polynaturedesign.com
>>+49[0]4131 220121 PHONE
>>+49[0]4131 224730 FAX
>>+49[0]16090300077 CELL
>>========================
>>
>>-----Original Message-----
>>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
>>Behalf Of Niblett, David A
>>Sent: Wednesday, May 18, 2005 5:04 PM
>>To: '[email protected]'
>>Subject: [Dbmail] DbMail in a ISP Cluster
>>
>>What are you all using to cluster PostgreSQL?  I looked at the
>>master/slave replication that comes with Postgres.  It seems fine if 
>>you want to replicate the data, but how do you get dbmail to switch 
>>databases when there is a failure?
>>
>>I'm currently using drbd to replicate the disk block device that my
>>postgres database is stored on, then only run postgres on the "primary"
>>    
>>
>machine.
>  
>
>>Linux heartbeat fails and starts the services on the "secondary"
>>machine shold the first one croak.
>>
>>--
>>David A. Niblett               | email: [EMAIL PROTECTED]
>>Network Administrator          | Phone: (352) 334-3400
>>Gainesville Regional Utilities | Web: http://www.gru.net/
>>
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>> 
>>
>>    
>>
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