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This article mainly introduces how to achieve process monitoring and automatic restart in linux, with certain reference value, interested friends can refer to, I hope you have a lot of gains after reading this article, let Xiaobian take you to understand.

Purpose:

Linux server programs will dump for various reasons, which will affect user use, here provides a simple process monitoring and restart function.

Principle:

The script is invoked by the timed task crontab, which checks with ps if the process exists and restarts and writes to the log if it does not.

crontab modification

# crontab -e*/5 * * * * /mnt/bindmonitor.sh

Implementation of/mnt/bindmonitor.sh

#! /bin/shhost_dir=`echo ~` #proc_name="/home/wkubuntu/named/sbin/named" #process name file_name="/mnt/bindmonitor.log" #log file pid=0proc_num() #Count processes { num=`ps -ef| grep $proc_name | grep -v grep | wc -l` return $num}proc_id() #Process ID { pid=`ps -ef| grep $proc_name | grep -v grep | awk '{print $2}'`}proc_numnumber=$? if [ $number -eq 0 ] The requested URL/home/wkubuntu/named/sbin/named -c /home/wkubuntu/named/etc/named.conf -n/was not found on this server. #Restart the process command, please modify proc_id accordingly #Get new process ID echo ${pid}, `date` > $file_name #Record new process ID and restart time fi

Delete Process Test

a. #killall -15 named

b. After 5 minutes, cat/mnt/bindmonitor.log to see if there are any recent records, process number and # ps -ef| grep named process number corresponds.

Thank you for reading this article carefully. I hope that Xiaobian's "How to Realize Process Monitoring and Automatic Restart in Linux" article will be helpful to everyone. At the same time, I hope that everyone will support you a lot and pay attention to the industry information channel. More relevant knowledge is waiting for you to learn!

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