I was just wondering why people were saying disaster, toy, etc .... wondering if I am missing something and going to lose all my data next week!

Like I said, I have not used FrontBase or PostgreSQL in production and have never touched PostgreSQL, so if it is comparison you are after, I don't have one. However I will say that I started using MySQL at 4.0, then 4.1 and now 5.0. Being the stickler for learning as much as I think I need to do something right, I bought the original Jeremy Zawodny book "Advanced MySQL" and that gave me a clear understanding and confidence of how to set the thing up. I have never used the cluster engine (NDB).... yet. I have always used InnoDB. I used MyISAM once for a readonly database (about 5 tables only) that has geocode lookups on tables of about 100 million rows because at the time it appeared faster (with mysql 4.0 at the time) to do points in radius operations which sometimes selected up to 500,000 rows in a select. My main ongoing project is InnoDB and every user is a user that does edits, with a small percentage of users absolutely hammering the database with production processing during business hours each day. I replicate to 3 slaves on that project purely for backup. It runs 24/7 and almost never have any "Scheduled Maintenance" downtime garbage because of the fact that the replication slaves are where the backups happen. One slave is remote and 2 onsite with the master. The binary logs on the master are written to a separate phyaical drive

Why do I like it?
- It is free
- It has never left me down - no data/table corruption
- It is simple to set up and configure
- replication is a breeze to set up
- It has multiple engine types for different scenarios
- and finally the reason that most people like what they use: "I am comfortable with it" ;-)


What would I like that I think I might be missing?
- transactional structure changes (ie., create table and roll back.) transactions in InnoDB only apply to table/record edits themselves.



On Dec 3, 2009, at 7:17 PM, Chuck Hill wrote:

It is probably better to look at the flip side: what are my reasons FOR using this database instead of any other database?


On Dec 3, 2009, at 2:58 PM, Kieran Kelleher wrote:

Miguel, anyone, please enlighten me as to what specifically is wrong with using MySQL InnoDB as a database for WO because I have not seen any problem, but then I have not used PostgreSQL or FrontBase either - so maybe I don't see a problem that I should be concerned about.

-Kieran

On Dec 3, 2009, at 5:41 PM, Miguel Arroz wrote:

Hi!

On 2009/12/03, at 22:32, Kieran Kelleher wrote:

I create new OSCs for most background tasks. The one thing is that I dispose() on it at the end of the task .... and the dispose() is only useful if you use ERXJDBCAdaptor is used since the regular WO 5.3 jdbc adaptor opens two connections for every OSC and leaves the stupid things open forever. ERXJDBCAdaptor only opens one db connection and releases it when u call dispose() IIRC.

Dude! <http://terminalapp.net/webobjects-postgresql-and-db-growing-and-growing/ > ;)

Dude! www.mysql.com - innodb (or cluster NDB) .... doesn't "grow and grow" (and it is not a "toy", no matter what Chuck says ;-) )

No, it's a disaster! ;)

The "growing" is a side effect of leaving the transaction opening that happens on PostgreSQL due to its architecture, but the point is the same, do what I say there to avoid the dumb connection. :)

Yours

Miguel Arroz


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