Most Linux distributions have crontab, a program that can be used to monitor exacqVision server and Enterprise Health Server. Crontab can periodically check and restart a process if it stops. The following process for enabling crontab monitoring assumes that you have root access to the Linux computer:
NOTE: These instructions are written for an exacqVision server. To replicate the instructions for Enterprise Health Server, replace “edvrserver” with “evHealthServer” where applicable.
1. In a Terminal window, type the following to open crontab in an editor (select nano if given a choice of editors):
prompt$ sudo crontab -e
2. In the editor type the following at the start of a new line:
0-59 * * * * /etc/init.d/edvrserver status ; [ $? != 0 ] && /etc/init.d/edvrserver start
3. Save the change.
4. Verify that the entry appears correctly:
prompt$ sudo crontab -l
# m h dom mon dow command
0-59 * * * * /etc/init.d/edvrserver status ; [ $? != 0 ] && /etc/init.d/edvrserver start
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Monitoring-exacqVision-servers-and-exacqVision-Enterprise-Health-Server-in-Linux.pdf