Hi,
my web2py instance (about 10000 pageviews, 300000+ ajax requests
daily) crashes about daily. As a workaround I have a script which
(re)starts the server when either memory usage exceeds certain
threshold or when the server is completely down. I run the script from
cron every minute.
#! /bin/sh
A=`netstat -tlnp | grep 8000`
TIME=`date`
LOG='/var/log/web2py/keepalive.log'
if [ "$A" ];
then
B=`echo $A | cut -d " " -f 7`
PID=${B%/*}
MEM=`ps -p $PID -o vsz | tail -n 1`
if [ "$MEM" -gt 2000000 ];
then
echo "$TIME $PID $MEM MEMORY" >> $LOG
echo "Web2py memory $MEM on $TIME => restart." | mail
m...@mail.com -s 'Web2py fail!'
/etc/init.d/web2py restart
else
echo "$TIME $PID $MEM OK" >> $LOG
fi
else
echo "$TIME FAIL" >> $LOG
echo "Web2py failed on $TIME" | mail m...@mail.com -s 'Web2py fail!'
/etc/init.d/web2py restart
fi
I know I should find time to try to examine cause of memory leaking
with guppy-heapy. But I think the crashing is another issue, not
directly related to the leaking. Access logs revealed no direct
relation to any particular controller or function. Also, after web2py
upgrade it has not changed.
Do you have any idea how to reveal the cause of crashing?
Thanks!
David
