Tuesday, 3 July 2012

Automate Apache server restart (bounce) through script



Are you thinking of automating Apache server restart which can be done through a crontab entry?

This is how we can do it :

Create the below entry in crontab (Please modify the timing in the cronjob as per your Apache restart requirement):

10 8  * * * su -c applmgr "sh /mine/oracle/prodappl/t11.5.0/bin/ApacheBounce"


Note:  ApacheBounce is the script to be created which will do the Apache restart. Mineserver is the servername where Apache services are running. 

This example is for the services running on a single node and same concept can be followed while implementing on multiple servers.

Location of the bounce script:  /mine/oracle/prodappl/11.5.0/bin/ApacheBounce

The below mentioned are the contents of the Apache restart script (ApacheBounce) :

#################################################################################

#Source the ENV file
. /mine/oracle/prodappl/APPSPROD_mine.env           

Sleep 5

# Notify all users before the restart.
cat $MINE_TOP/bin/ Apachedown.txt |  mailx -s "PRODUCTION  - Apache Bounce will happen  in 3 mins " -c “sandeshachar@mine.com”

sleep 180

#Stops the Apache services
sh $APPLCSF/scripts/PROD_mine/adapcctl.sh stop     

sleep 10

# Kill leftover Apache processes
kill_processes=`ps -ef | grep "/iAS/Apache/Apache/bin/" | awk '{print $2}'`
echo $kill_processes
kill -9 $kill_processes

sleep 5

sh $APPLCSF/scripts/PROD_mine/adapcctl.sh start     # starts the Apache services
sleep 5

# Notify all users after restart

cat $CUST_TOP/bin/Apacheup.txt | mailx -s "PRODUCTION  Apache Bounce Complete" -c “sandeshachar@mine.com”

#################################################################################
End of file.


Note:  Save the content of the email to be sent in a text file: Apachedown.txt and Apacheup.txt


For example:

$ cat $MINE_TOP/bin/Apachedown.txt
---------------------------------------------------------------------------------------------------------------------------- 
Hi All,

PRODUCTION Apache services are scheduled to be bounced in 2 minutes.
Please ignore any alerts while it is being bounced.


Thanks,
Oracle Apps DBA Team
 ----------------------------------------------------------------------------------------------------------------------------
  
$ cat  $MINE_TOP/bin/Apacheup.txt

-----------------------------------------------------------------------------------------------------------------------------
Hi All,

PRODUCTION Apache services have been restarted.
Please report if there are any issues.


Thanks,
Oracle Apps DBA Team

-----------------------------------------------------------------------------------------------------------------------------

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