Hi,
Unfortunately xpra is not so stable for me :-( - in two ways:
1.) Sometimes something on the client goes wrong and manually doing "xpra
upgrade" helps
2.) Often xpra on the server crashes but leaving the X-server intact s "xpra
upgrade" is possible.
My plan is to create a script that I run within screen and does the following:
1.) Starting xpra with a certain child. If the session already exists, upgrade
2.) Only if the child exits, the script should exit
3.) Otherwise (e.g., xpra crashes), xpra upgrade should run in a loop.
Would xpra provide "xpra upgrade-or-start :1111" this would be cheesy :-)
Other than that I am asking myself what is the best way to achieve it
otherwise. My current idea is:
xpra start :1111 --no-daemon --session-name=MATLAB --no-mdns
--start-child="/opt/matlab/bin/matlab -desktop" --exit-with-children
if [ $? -eq 0 ]
then
echo "xpra exited with status 0. Exiting ..."
exit 0
fi
while true
do
echo xpra died, doing upgrade ...
xpra upgrade :1111 --no-daemon --session-name=MATLAB --no-mdns
--start-child="/opt/matlab/bin/matlab -desktop" --exit-with-children
if [ $? -eq 0 ]
then
echo "xpra exited with status 0. Exiting ..."
exit 0
fi
echo "xpra exited with nonzero status, re-running the loop ..."
sleep 3
done
Can I be sure that xpra returns 0 only if the child exited and nonzero
otherwise (=crash, unexpected exit, ...)?
Is it better/more stable to query a session with something like "xpra list |
grep :1111" and the do either start or upgrade?
How do I best implement the behavior that the script upgrades if it is ran
twice and continues the loop but starts if it not?
Thanks for creative suggestions
Lukas
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