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Detect mysql deadlocks and notify developers by email. Notification sent on new deadlocks only
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#!/bin/bash | |
# | |
# Detects mysql deadlocks and notify developers by email | |
# Notification sent on new deadlocks only | |
# monuser must have "PROCESS" permission in mysql server | |
# Set EXCLUDE_PTRN to avoid alerting if the pattern was found | |
# | |
host=$1 | |
user=monuser | |
pass=monpass | |
tmp=/tmp/.${host}.output.txt | |
TO="dev@dom.local" | |
FROM="noreply@dom.local" | |
SUB="$host: Deadlock found" | |
#-- do not alert if the following pattern was found | |
EXCLUDE_PTRN="" | |
[ "x$host" = "x" ] && exit | |
mysql -h $host -u $user --password=$pass -be 'show engine innodb status \G' \ | |
| awk '/TRANSACTIONS/{flag=0}flag;/LATEST DETECTED DEADLOCK/{flag=1}' > $tmp | |
[ -s $tmp ] || exit | |
if [ ! "x${EXCLUDE_PTRN}" = "x" ]; then | |
grep -qiE "${EXCLUDE_PTRN}" $tmp | |
if [ $? -eq 0 ]; then | |
/bin/rm -f $tmp | |
exit | |
fi | |
fi | |
timestamp=$(head -n 2 $tmp | tail -n 1 | sed -e 's/ /_/g') | |
if [ -s "$tmp-$timestamp" ]; then | |
/bin/rm -f $tmp | |
exit | |
fi | |
/bin/rm -f $tmp-* | |
cat $tmp | mail -s "${SUB}" -r "${FROM}" $TO | |
/bin/mv $tmp "$tmp-$timestamp" |
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