There was one situation which was a little bit difficult to understand
for me. My MySQL instance was bound to my server's IP address instead
of 127.0.0.1. But in the database.properties I used "localhost" within
the database.url.

With the default setup (not using JPA for domains), when I launched
James I didn't see any exception or error message. But when I used the
remote admin shell through telnet, the session froze as soon as I
started adding users. Of course the reason was mis-configuration on my
side, but it took me some time to find the reason for that.

What exactly does happen in that case? Why don't I see an exception
when I try to add a user in that situation?

- Raju

On Thu, Nov 4, 2010 at 10:10 AM, Raju Bitter
<[email protected]> wrote:
> Yes, everything is working now. Thanks again!
>
> On Thu, Nov 4, 2010 at 7:37 AM, Eric Charles <[email protected]> wrote:
>> Hi Raju,
>>
>> So everything is working fine now?
>> You didn't get any exception  before simply because james didn't try to
>> access the database (it access it for mail delivery or for admin functions
>> for example).
>>
>> Tks,
>>
>> Eric
>>
>> On 3/11/2010 18:55, Raju Bitter wrote:
>>>
>>> Thanks, Eric. I activated JPADomainList, and now I get a JPA exception
>>> in my wrapper.log file:
>>> org.apache.openjpa.util.UserException: A connection could not be
>>> obtained for driver class "null" and URL "null".
>>>
>>> Checking my database.properties I saw that I mispelled the database
>>> name. The only strange thing was that I didn't see any exception until
>>> making the change to the domainlist.xml.
>>>
>>> Thanks,
>>> Raju
>>>
>>> On Wed, Nov 3, 2010 at 4:09 PM, Eric Charles<[email protected]>  wrote:
>>>>
>>>> Hi Raju,
>>>>
>>>> See bottom of http://openjpa.apache.org/integration.html to have
>>>> explanation
>>>> of the openjpa.Runtim message. You don't have to worry about it (message
>>>> is
>>>> also there with derby).
>>>>
>>>> fyi, the mysql jdbc driver can be dropped in ./conf/lib.
>>>>
>>>> Is there something that doesn't work ? Have you got exceptions with mysql
>>>> ?
>>>>
>>>> You can type help in the remote administrator (username = root / pwd =
>>>> root)
>>>> and invoke the command you want, typically "adduser" to begin.
>>>> We still need to update the config of the web site.
>>>>
>>>> On my side, I like to enable virtual hosting in mailserver.xml, and set
>>>> JPADomainList in domainlist.xml so I can adddomain, adduser,...
>>>>
>>>> Tks,
>>>>
>>>> Eric
>>>>
>>>>
>>>> On 3/11/2010 16:02, Raju Bitter wrote:
>>>>>
>>>>> Hi all,
>>>>>
>>>>> I'm using 3.0 M1 with MySQL as my database. I can launch James - just
>>>>> see this warning:
>>>>> 46  James  WARN   [main] openjpa.Runtime - An error occurred while
>>>>> registering a ClassTransformer with PersistenceUnitInfo: name 'James',
>>>>> root URL [file:/opt/james-3.0-M1/conf/]. The error has been consumed.
>>>>> To see it, set your openjpa.Runtime log level to TRACE. Load-time
>>>>> class transformation will not be available.
>>>>>
>>>>>
>>>>> Everything seems to work fine. I can connect to the admin console
>>>>> through telnet, but as soon as I start adding users, execute
>>>>> "countusers" - probably anything accessing the database - the admin
>>>>> console doesn't show me any output and doesn't execute any commands.
>>>>>
>>>>> The jame-server log file shows these entries:
>>>>> INFO  15:52:04,914 | james.remotemanager | Login for root successful
>>>>> users org.apache.james.user.jpa.jpausersreposit...@1bb60ad
>>>>> 29564  James  INFO   [New I/O server worker #4-1] openjpa.Runtime -
>>>>> Starting OpenJPA 2.0.1
>>>>> 29664  James  INFO   [New I/O server worker #4-1] openjpa.jdbc.JDBC -
>>>>> Using dictionary class "org.apache.openjpa.jdbc.sql.MySQLDictionary".
>>>>>
>>>>>
>>>>> I'm using the following database properties:
>>>>> # Use derby as default
>>>>> database.driverClassName=com.mysql.jdbc.Driver
>>>>> database.url=jdbc:mysql://localhost/james
>>>>> database.username=jamesuser
>>>>> database.password=*********
>>>>>
>>>>> CLASSPATH_PREFIX
>>>>> # Add every needed extra jar to this
>>>>> CLASSPATH_PREFIX=../lib/mysql-connector-java-5.1.13-bin.jar
>>>>>
>>>>> Software versions:
>>>>> Ubuntu 8.04
>>>>>
>>>>> mysql  Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486)
>>>>>
>>>>> java version "1.6.0_22"
>>>>> Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
>>>>>
>>>>> When I use the default Derby database, everything works fine.
>>>>>
>>>>> What should I do next? Thanks,
>>>>>
>>>>> Raju
>>>>>
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