![crontab no puede iniciar el servicio a través del script de trabajo](https://rvso.com/image/617260/crontab%20no%20puede%20iniciar%20el%20servicio%20a%20trav%C3%A9s%20del%20script%20de%20trabajo.png)
Mi script funciona cuando se ejecuta solo pero no a través de crontab
crontab
[root@someserver:/]# crontab -l
SHELL=/bin/bash
PATH=/usr/lib64/qt-3.3/bin:/home/ec2/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
*/1 * * * * /bin/bash /opt/scripts/check_beaver_status.sh
Guión en cuestión
#!/bin/bash
function check_if_beaver_running () {
current_script=`basename $0`
process_name="beaver"
/bin/ps aux | /bin/grep "${process_name}" | /bin/grep -v 'grep' | /bin/grep -v "$current_script"
if [ $? -eq 0 ]; then
echo "${process_name} running"
else
echo "${process_name}: not running, starting..."
if [ -f /var/run/logstash_beaver.pid ] ; then
/bin/rm -f /var/run/logstash_beaver.pid
fi
/sbin/service beaver start
fi
}
check_if_beaver_running
Respuesta1
Crond no estaba corriendo.
[root@someserver:]# service crond status
crond is stopped
[root@someserver:]# service crond start
[root@someserver:]# chkconfig crond on
También cambié mi script a:
#!/bin/bash
# when running in crontab:
# SHELL=/bin/bash
# PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
# */10 * * * * /bin/bash beaver_ensure_running.sh
START=false
readarray -t PIDS < <(exec pgrep -x beaver)
function stop_beaver {
/usr/sbin/service beaver stop
sleep 5s ## Optionally wait for processes to stop.
kill -s SIGTERM "${PIDS[@]}" ## Perhaps force another signal to them if it doesn't work with defuncts.
sleep 5s ## Optionally wait for processes to stop.
kill -s SIGKILL "${PIDS[@]}" ## Perhaps force another signal to them if it doesn't work with defuncts.
START=true
}
if [[ ${#PIDS[@]} -eq 0 ]]; then
echo "No beaver process was found."
START=true
elif [[ ${#PIDS[@]} -eq 1 ]]; then
echo "Processes found: ${PIDS[*]}"
echo "Only one beaver process found."
stop_beaver
elif ps -fp "${PIDS[@]}" | fgrep -F '<defunct>' >/dev/null; then
echo "Processes found: ${PIDS[*]}"
echo "Defunct beaver process found."
stop_beaver
else
echo "Processes found: ${PIDS[*]}"
fi
[[ $START == true ]] && /usr/sbin/service beaver start
Respuesta2
Estoy muy interesado en la respuesta a esto, así que déjame ayudarte a diagnosticarlo.
Intente cambiar cron a:
*/1 * * * * /bin/bash -x /opt/scripts/check_beaver_status.sh > /tmp/crondiag.log 2>&1
También agregue el comando:
env
Tanto a la parte superior del script como a la parte inferior de la llamada a la función en el script.
Déjalo funcionar una vez y comparte con nosotros el resultado. Quizás en pastie.org o algo así.