Attachment 605280 Details for Bug 849272 – bash script used to monitor swap use and restart httpd server

bash script used to monitor swap use and restart httpd server

swapmon (text/plain), 1.18 KB, created by Harold Pritchett on 2012-08-17 23:13:29 UTC

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Creator: Harold Pritchett

Created: 2012-08-17 23:13:29 UTC

Size: 1.18 KB

patch

obsolete

>#!/bin/bash
>
>#
># this script should be manually started after each reboot of the system
># with the command "nohup swapmon &"
>#
>
>SUBJECT="CalServ excessave page file use"
>EMAIL="hal,dpegen,harold_cell"
>EMAILMESSAGE="/tmp/emailmessage.txt"
>declare -i maxswap=4144766     # 50% of the available swap space
>declare -i used
>
>while [ /bin/true ]; do
>
>LOGFILE="/tmp/swapmon."$(/bin/date +%y%m%d)
>used=$(/usr/bin/tail -1 /proc/swaps | /bin/cut -f 3)
>
>  /bin/echo $(/bin/date +%y%m%d\ %H%M%S) $used >> $LOGFILE
># /bin/echo $(/bin/date +%y%m%d\ %H%M%S) $used
>
>if test $used -lt $maxswap
>  then
>    /bin/true  # do nothing
>  else
>    echo "The swapmon program running on CalServe has detected a problem"> $EMAILMESSAGE
>    echo "" >>$EMAILMESSAGE
>    echo "The currently reported swap size (" $used ")" >>$EMAILMESSAGE
>    echo "is greater than the allowed used size (" $maxswap ")" >>$EMAILMESSAGE
>    echo "" >>$EMAILMESSAGE
>    echo "The Apache HTTPD server was restarted at " $(/bin/date) >>$EMAILMESSAGE
>    echo "The Apache HTTPD server was restarted at " $(/bin/date) >>$LOGFILE
>    /bin/mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE
>    rm $EMAILMESSAGE
>    echo no
>    /etc/init.d/httpd restart
>fi
>
>sleep 300
>
>done

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Attachments on bug 849272: 605278 | 605279 | 605280 | 605281