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