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How do I check the downtime of a process in sun solaris?

Posted on 2007-11-17
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Greetings experts,

I have a sun solaris server (version 9) and I want to check the downtime of a process. For example if my oracle process (pmon) goes down during the night , I can come in the next morning and check the time duration during which the process was down.

Please help.

Thanks and regards,
casemanager
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Question by:casemanager
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Expert Comment

by:omarfarid
ID: 20304015
Hi,

You may look in to the Oracle logs to see when the process stopped (last log).

You may also look in to the system logs like

/var/log/syslog
/var/adm/messages

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by:casemanager
ID: 20306139
Thanks for replying Omar. I got the information I was looking for in the logs generated in /var/adm/messages. Is there any way in which I can automate this process and get to know this information without checking the logs. What I am trying to say is -Oracle process goes down every night for about 3 hours. Is there any way in which the server can send me a report via email with the information as  to when the process was unavaliable and the time when it was back up.

I am thinking that this requires modification of the syslog parameters --all I want to know is how to do it??

Thanks.
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Accepted Solution

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omarfarid earned 500 total points
ID: 20306302
Hi,

Well,

You may have a crontab job that run say every 5 min. The job (e.g. script) can check for the process (in the server's running processes or logs), and if found not running may send you email.

e.g. you may create script called monitormypmon (here I will assume that the process just die and not running), and contains

count=`/usr/bin/ps -ef | /usr/bin/grep -v grep | /usr/bin/grep pmon | wc -l`
if test $count -gt 0
then
      /usr/bin/date >> /path/to/pmon.log
      echo "running ...." >> /path/to/pmon.log
else
     /usr/bin/mail -s "pmon not running" username < /dev/null
fi

Make this script executable:

chmod +x monitormypmon

To create crontab job, run:

crontab -l > mycrontab

edit mycrontab (e.g. vi mycrontab) and add line similar to:

0,10,20,30,40,50 * * * * /path/to/monitormypmon


The above schedule will run the script every 10 min (for more info please use man crontab)

run:

crontab mycrontab
crontab -l
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Author Comment

by:casemanager
ID: 20306792
Thanks...I tried the solution and is seems to fulfill the purpose for now..
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Author Closing Comment

by:casemanager
ID: 31409719
Thanks Omarfarid for the excellent answer
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