testing with 8 instances (was Re: [opencms-dev] Question about administrator rights)

[Dimitri Bougoulias]

Hi,

I found another problem with multiple instances of OpenCMS, too.
For example today I tried to setup 2 instances at once using the latest
CVS (2002-12-17-17-34_current - EET Time)
I copied opencms.war and ocdemo.war (copy of opencms.war) into the
webapps directory at the same time.
Then started tomcat.
It expanded both ok.
Run setup for the first.
After setup was over I tried the default index.jsp. It looked OK but the
links were wrong. For example the release notes menu item was pointing
to the export directory etc.
Did not try to setup the second instance.
Deleted the second instance (ocdemo directory and ocdemo.war) and rerun
setup. 
Then it worked OK!

Best regards,

Dimitri

-----Original Message-----
From: owner-opencms-dev at www.opencms.org
[mailto:owner-opencms-dev at www.opencms.org] On Behalf Of Sven Dittmar
Sent: Tuesday, December 17, 2002 2:47 PM
To: opencms-dev at www.opencms.org
Subject: FYI: testing with 8 instances (was Re: [opencms-dev] Question
about administrator rights)


Hi there,

we had short testsession today with 8 different instances of opencms 
(oc-beta52, mysql 3.23,  jakarta-tomcat-4.1.12 and j2sdk1.4.1_01)

The result is was eerm interesting. :-)

Half of the people had crashes like

Unknown exception. Detailed Error: CmsException ID: 0. Caught Exception:

 >java.lang.IllegalArgumentException: Packet is larger than 
max_allowed_packet from server configuration of 1047552 bytes<

and many locking errors.

The performance was getting quiet slow. You sometimes had to wait more 
than 5 seconds for a change in the browserwindow.

The system worked smoothly and quick in one instance before that test.

Result is: It's not a good idea to circumvent the oc-usermanagement with

multiple oc-instances.

Did no one try something similiar before?

Regards,
Sven

Sven Dittmar wrote:
> Hi there,
> 
> we are trying out a new idea, has anyone tried something similiar and
> can tell about sideeffects and do's/dont's and performance issues?
> 
> For each wanted user-group we will create an own instance of opencms
> (copying the opencms.war files and create new mysql-db's) and restart 
> tomcat.
> 
> So we can give them their own admin and rights to manage their users 
> and
> site.
> 
> Regards,
> Sven
> 
> Sven Dittmar wrote:
> 
>> Hi Alexander and Nico,
>>
>> thanks for your answers!
>>
>>> "Administrators" group is like being "root" on a UNIX system. It 
>>> would
>>
>>
>> Okay, so the enhancement would be like a UNIX sudo where one could
>> specifiy "tasks" for the user working as "root".
>>
>> I will play around with the groups now and try to find a good way in
>> the meantime.
>>
>> Best Regards,