139 lines
3.1 KiB
Bash
Executable file
139 lines
3.1 KiB
Bash
Executable file
#!/bin/bash
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#
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# count how many apache processes are running and warn us if it's getting high..
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SCRIPT=egapachewatch.sh
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VERSION=0.1
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#
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LOG=/var/log/egapachewatch.log
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TMP_DIR=/tmp
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DATE=`which date`
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MAIL=`which mail`
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RM=`which rm`
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NUMWARN=40
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#
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TODAY=`$DATE '+%Y-%m-%d-%a'`
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# determine today's date
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NOW=`$DATE '+%H-%M-%S'`
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# a timestamp for logging purposes
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#
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# function to direct a message...
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message() {
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#
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# a timestamp for logging purposes
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timestamp
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if test -w $LOG ; then
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echo "$SCRIPT: $TIMESTAMP $@" >> $LOG
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fi
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if test -w $TMP_EMAIL ; then
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echo "$SCRIPT: $TIMESTAMP $@" >> $TMP_EMAIL
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fi
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verbose "$TIMESTAMP $@"
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}
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#
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# function to direct a message...
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verbose() {
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if test $VERBOSE ; then
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echo "$@"
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fi
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}
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#
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# insert a blank line into the log and on the console
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insert_blank() {
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echo "" >> $TMP_EMAIL
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verbose ""
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}
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#
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# update date and time info..
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today() {
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# determine today's date
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TODAY=`$DATE '+%Y-%m-%d-%a'`
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}
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now() {
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# determine today's date
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NOW=`$DATE '+%H-%M-%S'`
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}
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timestamp() {
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# a timestamp for logging purposes
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TIMESTAMP=`$DATE '+%Y-%m-%d %H:%M.%S'`
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}
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#
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# create the temporary email file
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create_tmp_email() {
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if test -d $TMP_DIR ; then
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if test -w $TMP_DIR ; then
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touch $TMP_EMAIL 2>&1
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else
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error "Email tmp directory $TMP_DIR is not writable"
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fi
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else
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error "Email tmp directory $TMP_DIR does not exist"
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fi
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if test -w $TMP_EMAIL ; then
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message "created temporary email $TMP_EMAIL"
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else
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error "Failed to create temporary email $TMP_EMAIL"
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fi
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}
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#
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# send the contents of the temporary file to the
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# designated report recipient
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send_email_report() {
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if test -f $TMP_EMAIL ; then
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message "sending email report to $EMAIL_TO"
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for EMAIL_ADD in $EMAIL_TO
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do
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RES=`$MAIL -s "$EMAIL_SUBJ" $EMAIL_ADD < $TMP_EMAIL`
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if test -z $RES ; then
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if test $ERROR_STATUS == 1 ; then
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message "Error email report successfully sent to $EMAIL_ADD"
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else
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message "Email report successfully sent to $EMAIL_ADD"
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fi
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fi
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done
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if test -w $TMP_EMAIL ; then
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$RM $TMP_EMAIL 2>&1
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fi
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fi
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}
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# modified dave@egressive.com 20071029
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max_clients() {
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NUMAVAIL=`grep -A 8 "IfModule prefork.c" /etc/apache2/apache2.conf | grep "^MaxClients" | awk '{print $2;}'`
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# An email will be sent if the number of processes running is greater than ($NUMAVAIL - $NUMWARN)
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# As of 20071025, MaxClients was set to 150 this may be outrageously high for the amount
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# of memory on the server, so NUMWARN is set high too . . .
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}
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TMP_EMAIL=$TMP_DIR/$SCRIPT"_tmp_email_"$TODAY.$NOW
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EMAIL_TO="support@egressive.com"
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NUMPROC=`ps auxwww | grep -c "apache2"`
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max_clients
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NUMWARNLEVEL=$[$NUMAVAIL - $NUMWARN]
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MACHINE_NAME="geprod"
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ERROR_STATUS=0
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#
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# set up alert
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if ! test -f $TMP_EMAIL ; then
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touch $TMP_EMAIL
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fi
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if ! test -f $LOG ; then
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touch $LOG
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fi
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message " " # blank line
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message "running $NOW"
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#NUMAVAIL=1
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message "current number of processes $NUMPROC out of $NUMAVAIL"
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if [ $NUMPROC -ge $NUMWARNLEVEL ] ; then
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message "sending email alert!"
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EMAIL_SUBJ="ALERT - $MACHINE_NAME - exceeding num apache processes!"
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send_email_report
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fi
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now
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message "completed run"
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exit 0
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