81 lines
2.6 KiB
Text
81 lines
2.6 KiB
Text
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#!/bin/bash
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#
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# egdbback, copyright 2008 Egressive Limited, http://egressive.com
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#
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# this script checks the status of a mysql database, eg. replication status...
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#
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#==========================================
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# The Variables - these must be define
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# before they're referenced
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#==========================================
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VERSION="0.1"
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EGDB_NAME=`basename $0`
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EGDB_DIR=/etc/egscripts/egdbstatus
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EGDB_CMD=$EGDB_DIR/egdbstatus-nerdelbaum
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SITE_CONF="$EGDB_DIR/site-nerdelbaum.conf"
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#
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# this provides values for MACHINE_NAME and EMAIL
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. $SITE_CONF
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#
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LOGS=/var/log
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LOGFILE=$LOGS/egdbstatus-nerdelbaum.log
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#
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LASTRUN=/tmp/.egdbstatus-nerdelbaum
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# required programs
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MAIL=`which mail`
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GREP=`which grep`
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LS=`which ls`
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ID=`which id`
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DATE=`which date`
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DF=`which df`
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GZIP=`which gzip`
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GZIPSUF=gz
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RM=`which rm`
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LN=`which ln`
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CUT=`which cut`
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AWK=`which awk`
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CP=`which cp`
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CAT=`which cat`
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FIND=`which find`
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#
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#==========================================
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# MySQL vars...
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MYSQL=`which mysql`
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# Set the correct socket to use
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MYSQL="$MYSQL -S /var/run/mysqld/mysqld.nerdelbaum.sock"
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STATUS="[SUCCESS]"
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date > $LOGFILE
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ERRNO=`echo "SHOW SLAVE STATUS\G" | $MYSQL -u $USER -p$PASSWORD | $GREP "Last_Errno" | $AWK '{ print $2; }'`
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if [ "$ERRNO" != "0" ]; then
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echo "SHOW SLAVE STATUS\G" | $MYSQL -u $USER -p$PASSWORD | $GREP "Last_Error" | $AWK '{ print $2; }' >> $LOGFILE
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STATUS="[ERROR]"
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fi
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SLAVE_STATUS=`echo "SHOW SLAVE STATUS\G" | $MYSQL -u $USER -p$PASSWORD | $GREP "Slave_IO_State" | $AWK -F':' '{ print $2; }' | sed "s/^[ \t]*//g"`
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if [ "$SLAVE_STATUS" != "Waiting for master to send event" -a "$SLAVE_STATUS" != "Queueing master event to the relay log" ] ; then
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echo $SLAVE_STATUS >> $LOGFILE
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echo " See http://dev.mysql.com/doc/refman/5.0/en/slave-io-thread-states.html for more info" >> $LOGFILE
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STATUS="[ERROR]"
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fi
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SECONDS_BEHIND=`echo "SHOW SLAVE STATUS\G" | $MYSQL -u $USER -p$PASSWORD | $GREP "Seconds_Behind_Master" | $AWK -F':' '{ print $2; }' | sed "s/^[ \t]*//g"`
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if [ "$SECONDS_BEHIND" = "NULL" -o `echo "$SECONDS_BEHIND > 3600" | bc` -ne 0 ] ; then
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echo "Slave is too far behind or null: $SECONDS_BEHIND" >> $LOGFILE
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STATUS="[ERROR]"
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fi
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# We have found an error or we havn't reported in the 6 hours, report it
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if [ "$STATUS" == "[ERROR]" ] || [ ! -e $LASTRUN ] || [ -n "`$FIND $LASTRUN -mmin +359`" ]; then
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echo "+++++++++++++++++++++++++++++++++++++++++"
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echo " Full status of the slave"
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echo "+++++++++++++++++++++++++++++++++++++++++"
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echo
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echo "SHOW SLAVE STATUS\G" | $MYSQL -u $USER -p$PASSWORD >> $LOGFILE
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HOST=`hostname`
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$CAT $LOGFILE | $MAIL -s "$STATUS Replication on $HOST (Nerdelbaum)" $EMAIL
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touch $LASTRUN
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fi
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