No, this did not help. The vacuum process is still running far too long and makes everything slow. It is even worse than before, cause now the system is slow almost all the time while when vacuuming only every 3 hours it is only slow once every three hours.....

I now did the following. Well, no comment.....


Shellscript A:

while true
do
   psql -U $user -d $database -c "vacuum analyze verbose binary_cache"
   echo "Going to sleep"
   sleep 60
done


Shellscript B:

while true
do
       ps aux > $tempfile
       numwaiting=`grep UPDATE.waiting $tempfile | grep -c -v grep`
       echo "Number of waiting updates: $numwaiting"

       vacuumpid=`grep VACUUM $tempfile| grep -v grep | awk '{print $2}'`
       echo "PID of vacuum process: $vacuumpid"

       if [ $numwaiting -gt 5 ]
       then
echo "Too many waiting transactions, killing vacuum process $vacuumpid..."
               kill $vacuumpid
       fi
       echo "Sleeping 30 Seconds"
       sleep 30
done

--
Bastian Voigt
Neumünstersche Straße 4
20251 Hamburg
telefon +49 - 40  - 67957171
mobil   +49 - 179 - 4826359



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