I have so far encountered the following errors, and have provided the steps to resolve.
I recommend tailing the log files and repeating the steps to re-create the error to help you troubleshoot
$ sudo tail -f /var/log/sdn/virgo/logs/log.log
Problem: Presented with a white / blank page after logging in.
Resolution: Provide more RAM to OS in line with product guides - make sure you assign 8GB RAM and 4x CPU's.
Problem: Unable to log in - Invalid user & password combination specified!
Resolution:
1. If you are running 2.4, make sure you have run this command to input the local SDN user information into Keystone
$ sudo /opt/sdn/admin/config_local_keystone
2. Tail the log file - the 401 error means an invalid username / password combination. The error code 500 means something has gone squiffy with Keystone
Failed to authenticate sdn domain user sdn due to com.hp.api.auth.AuthenticationException: Validation error code 401
Failed to authenticate sdn domain user sdn due to com.hp.api.auth.AuthenticationException: Validation error code 500
With the error 500, I had to reinstall Keystone to resolve it. Follow the steps below (for SDN VAN 2.4 Controller)
$ sudo apt-get purge keystone
$ sudo rm -Rf /var/lib/keystone/
$ sudo apt-get install keystone
$ sudo /opt/sdn/admin/config_local_keystone
###
Problem
I ran in this this problem, specific with firefox browser:
Failed to validate token [token] due to com.hp.api.auth.AuthenticationException: Validation error code 404
Resolution
Log in with Chrome, or IE and it works fine - Don't mess around with keystone, just simply clear your history / browser cache and you can log in fine!
###
Problem
I had a problem where the SDN application failed to start, and it turned out the hard drive had been completely filled. It turns out that there is a 'bug' in HP SDN Controller 2.5.20 which consumes all of the inodes - see http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=c04647293
Run a df -i and you will notice the root / partition is at 100%
sdn@sdn01:~$ df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/sda1 3801088 3801088 0 100% /
udev 1019931 432 1019499 1% /dev
tmpfs 1022257 305 1021952 1% /run
none 1022257 5 1022252 1% /run/lock
none 1022257 1 1022256 1% /run/shm
and you cannot create any new files
mkdir temp
mkdir: cannot create directory `temp': No space left on device
Resolution
I temporarily deleted this folder to resolve the issue, but ultimately you should create a cron job to remove older files.
rm -rf /opt/sdn/virgo/metrics/2015
Problem
ERR_SSL_VERSION_OR_CIPHER_MISMATCH - Old ciphers used on older versions of the HPE SDN Controller, follow the guide below to resolve the issue.
Resolution
https://www.hpe.com/h20195/v2/GetPDF.aspx/4AA5-9140ENW.pdf
I'm sure more will be added as I encounter them, feel free to contact me if you find any others :)