Greetings Kieran,
I thought as much.  I can't figure out why it was having such trouble, but 
after the machine reset it turned out ok.

Thank you,
Dan


On Dec 21, 2009, at 7:00 AM, Kieran Kelleher wrote:

> Most likely it is connection refused ..... try ssh'ing into the server that 
> the wo app is deployed on and try and log into the database using the same 
> credentials as the app does from the wo server.
> 
> mysql -u <wouser>  -h <mysqlhost> -p<wopassword>
> 
> (Note no space between -p and <password> when u provide the passwod in 
> cleartext on the command line. Alternatiovely u can do it this way and type 
> the non-echoed password:
> mysql -u <wouser>  -h <mysqlhost> -p
> Password:
> 
> Remember MySQL always uses THREE credentials the authenticate. The user, 
> password AND client hostname. If I want all wo machines on a local subnet to 
> have access toa  database, I might do sth like this using % wildcard:
> GRANT SELECT, INSERT, UPDATE, DELETE ON mydatabase.* TO 'wouser'@'192.%' 
> IDENTIFIED BY 'wopassword';
> 
> HTH, Kieran
> 
> On Dec 20, 2009, at 11:37 PM, Daniel Beatty wrote:
> 
>> Greetings gang,
>> Ok, I have a mystery that I am tracking down, and I need some help.   I have 
>> a MySQL database that seems to work for Wonder's D2W under Eclipse.   
>> However, deployment seems to be another issue.  The eomodel for the deploy 
>> and Eclipse development environment are the same.   Yet in the deployment 
>> case, I get the following error:
>> 
>> java.lang.IllegalStateException: _obtainOpenChannel -- 
>> com.webobjects.eoaccess.EODatabaseContext 
>> com.webobjects.eoaccess.eodatabasecont...@3bea817f: failed to open database 
>> channel. Check your connection dictionary, and ensure your database is 
>> correctly configured.
>> 
>> Any ideas?
>> 
>> Thank you,
>> 
>> Dan Beatty, M.S. CS (B.S. EECS)
>> Ph.D. Student
>> Texas Tech University
>> [email protected]
>> http://venus.cs.ttu.edu/~dabeatty
>> http://web.me.com/danielbeatty/My_Home_Page/Welcome.html
>> 
>> 
>> 
>> On Dec 3, 2009, at 7:50 PM, Andrew Lindesay wrote:
>> 
>>> Hello Guido;
>>> 
>>> I have to concur; PG has been really great for me and I have had some 
>>> problems with MySQL.  The most serious problem with MySQL was 
>>> memory-exhaustion in the driver, but the latest MySQL driver has seemed to 
>>> _finally_ resolved that one.  I have to also concur with Mike though in 
>>> that I did try to take pgpool (replication only) to a production 
>>> environment and it was not a happy morning and I had to roll it back.  If I 
>>> had to choose between the two for a small WOA, I would definitely lean 
>>> towards PG because of the trouble-free operations I've experienced.  I 
>>> notice there are a number of companies offering support for larger PG 
>>> deployments.
>>> 
>>> cheers.
>>> 
>>>> I don't think I ever used MyISAM tables with a WO app. I have seen 
>>>> corrupted data with InnoDB tables and WO usage though. For the rest, they 
>>>> might have been MyISAM used from some PHP web crap, but the thing is: the 
>>>> SQL stored the thing and some historic data gets corrupted. That was the 
>>>> issue we had. I can't recall exactly enough to blame it completely on 
>>>> MySQL, but I stopped using it and I had never ever again any issues with 
>>>> corrupt data (95% PostgreSQL, 5% FrontBase usage).
>>>> 
>>>> FrontBase has the issue that you can easily kill the server with bad 
>>>> input. This can't happen with PostgreSQL as you get your own backend for 
>>>> each connection.
>>>> 
>>>> Between the three databases MySQL, PostgreSQL, and FrontBase, I've used 
>>>> PostgreSQL the most and with the most success and least amount of trouble. 
>>>> I'd love to see a multi master clustering solution for it though that 
>>>> actually works and is not a piece of shit.
>>> 
>>> ___
>>> Andrew Lindesay
>>> www.lindesay.co.nz
>>> 
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>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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> 



Dan Beatty, M.S. CS (B.S. EECS)
Ph.D. Student 
Texas Tech University
[email protected]
http://venus.cs.ttu.edu/~dabeatty
http://web.me.com/danielbeatty/My_Home_Page/Welcome.html







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