#!/bin/sh
# Copyright (C) 2008-2010  Equinox Software, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
#
# Author       : Michael Tate, Sys Admin, ESI
# Purpose      : Look for excessive NOT CONNECTEDS in the osrfsys logs in the current hour
USAGE="check_notconnected <logpath (default to /var/log/evergreen/prod/, assumes central logging)>"
if [[ $1 == *help* ]]; then
  echo "Usage: $USAGE"
  exit 0
fi

## GET/SET Variables ##
CRITLIMIT=20
WARNLIMIT=12

# logfile path
if [ -n "$1" ]; then
  LOGPATH="$1"
else
  LOGPATH="/var/log/evergreen/prod"
fi

NCCOUNT=`grep -c "IS NOT CONNECTED TO THE NETWORK" $LOGPATH/$(date +%Y/%m/%d)/osrfsys.$(date +%H).log`
if [ $NCCOUNT -ge $CRITLIMIT ]; then
   TOPSERVER=$(grep "IS NOT CONNECTED TO THE NETWORK" $LOGFILE | cut -d" " -f3 | sort | uniq -c | sort -nr | head -1)
   SVRMSG=" (Top server this hour: $TOPSERVER)"
   EXITSTATUS="CRIT"
   EXITCODE=2
elif [ $NCCOUNT -ge $WARNLIMIT ]; then
   TOPSERVER=$(grep "IS NOT CONNECTED TO THE NETWORK" $LOGFILE | cut -d" " -f3 | sort | uniq -c | sort -nr | head -1)
   SVRMSG=" (Top server this hour: $TOPSERVER)"
   EXITSTATUS="WARN"
   EXITCODE=1
elif [[ $NCCOUNT -lt $WARNLIMIT ]; then
   EXITSTATUS="OK"
   EXITCODE=0
   SVRMSG="."
else
   EXITSTATUS="WARN: An error has occurred $PREVTOT $PERIOD"
   EXITCODE=1
fi

echo "$EXITSTATUS: $NCCOUNT NOT CONNECTEDs returned this hour$SVRMSG"
exit $EXITCODE