Constant IO with Openhabian on pi

Hi there,

My IO led is flashing constantly with a new installed openhabian. If I run iotop in the shell it is always jbd2 writing every few seconds to disk. I don’t know what is causing this and I think it will hurt my sd card sooner or later. The openhab log doesn’t show a constant writing. Only a few INFO messages.

Any help much appreciated. I am on:
###############################################################################
## Ip = 192.168.1.104
## Release = Raspbian GNU/Linux 8 (jessie)
## Kernel = Linux 4.9.24-v7+
## Platform = Raspberry Pi 2 Model B Rev 1.1
## Uptime = 0 day(s). 0:0:22
## CPU Usage = 78.83 % avg over 4 cpu(s) (4 core(s) x 1 socket(s))
## CPU Load = 1m: 1.32, 5m: 0.29, 15m: 0.10
## Memory = Free: 0.76GB (81%), Used: 0.18GB (19%), Total: 0.94GB
## Swap = Free: 0.09GB (100%), Used: 0.00GB (0%), Total: 0.09GB
## Root = Free: 4.47GB (64%), Used: 2.42GB (36%), Total: 7.21GB
## Updates = Unknown apt-get updates available.
## Sessions = 1 sessions
## Processes = 133 running processes of 32768 maximum processes
###############################################################################

              Welcome to            __  _____    ____  _
            ____  ____  ___  ____  / / / /   |  / __ )(_)___ _____
           / __ \/ __ \/ _ \/ __ \/ /_/ / /| | / __  / / __ `/ __ \
          / /_/ / /_/ /  __/ / / / __  / ___ |/ /_/ / / /_/ / / / /
          \____/ .___/\___/_/ /_/_/ /_/_/  |_/_____/_/\__,_/_/ /_/
              /_/
                  openHAB 2.0.0-1 (Release Build)


Looking for a place to get started? Check out 'sudo openhabian-config' and the
documentation at http://docs.openhab.org/installation/openhabian.html
The openHAB dashboard can be reached at http://openHABianPi:8080

Okay after a bit of digging through the logs I identified which log was constantly writing
It is: /var/log/auth.log

Jun 20 20:50:14 openHABianPi sudo:  openhab : user NOT in sudoers ; TTY=unknown ; PWD=/var/lib/openhab2 ; USER=root ; COMMAND=/etc/openhab2/scripts/rht03
Jun 20 20:50:14 openHABianPi sudo: pam_unix(sudo:auth): conversation failed
Jun 20 20:50:14 openHABianPi sudo: pam_unix(sudo:auth): auth could not identify password for [openhab]

It is a script which is executed in a rule and the owner of the script was openhabian and not openhab. So that causes the excessive writes. Strange is that there is no warning or error in the openhab log or shouldn’t they?