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Mysterious differences between identical server setups and upgrade

 

Hello everyone,

I need help with a server setup. The server uses dhis2-tools with two
instances called dhis and training, running on Ubuntu 14.04, Tomcat 7, Java
8. The dhis instance is a 2.19-SNAPSHOT from March 6.

FIRST PROBLEM

We took a dump of the dhis db and restored it on a Windows laptop. Then ran
update scripts for 2.20 and started without a hitch, and repeated the
procedure to upgrade to 2.21.

We then restored the upgraded 2.21 db onto the server and linked it to the
training instance with a 2.21 war file.

But then we got an error listening start error, so we were not able to
proceed and had to revert to 2.19 (as described below).

SECOND PROBLEM

I stopped the training instance, dropped the training database and deleted
the training/webapps/training folder

I then cloned the prod db like this:
http://stackoverflow.com/questions/876522/creating-a-copy-of-a-database-in-postgresql

Finally, I copied the dhis/webapps/dhis folder to training/webapps and
renamed it to training

To my understanding, I should now have two exact copies of the same
instance, just with different names. HOWEVER, analytics works fine on dhis,
but fails on training.

Any clues would be gratefully accepted, as tomorrow will be my last short
window of a couple of hours to try and fix this in the next couple of
months.

Thanks,
Knut

-- 
Knut Staring
Dept. of Informatics, University of Oslo
Norway: +4791880522
Skype: knutstar
http://dhis2.org