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10.03.2008 at 05:40AM PDT, ID: 23784745
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7.6

Error checking on mysqldumps on daily backup cronjob

Asked by jwnrb in Bourne-Again Shell (bash), Bourne Shell (sh)

Tags:

I have a daily cronjob where I backup all of my databases on my two linux servers.  Currently, I have no way of knowing if this even works, if any errors were reported, etc.  I am not too sure how to get these flags, but any help on making this script better is appreciated.

Much thanks!Start Free Trial
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#! /bin/sh
# usage $0
 
date=`date -I`
export localdb=`ls /var/lib/mysql -l | egrep '^d' | awk '{print $9}' | egrep -v '(\.|\.\.)' | awk -F/ '{print $1}'`
export remotedb=`ssh root@internet "ls /var/lib/mysql -l" | egrep '^d' | awk '{print $9}' | egrep -v '(\.|\.\.)' | awk -F/ '{print $1}'`
export localcount=`ls /var/lib/mysql -l | egrep '^d' | awk  '{print $9}' | wc -l`
export remotecount=`ssh root@internet "ls /var/lib/mysql -l" | egrep '^d' | awk  '{print $9}' | wc -l`
export localstored=`find /var/backup/mysql -mtime -1 -type f -print | grep intranet | wc -l`
export remotestored=`find /var/backup/mysql -mtime -1 -type f -print | grep internet | wc -l`
 
for nextdb in $localdb
   do
      mysqldump -ppassword --databases $nextdb | bzip2 > /var/backup/mysql/intranet-$nextdb-$date.sql.bz2
done
 
for remotenextdb in $remotedb
   do
      ssh root@internet "mysqldump -ppassword --databases $remotenextdb | bzip2 > /tmp/internet-$remotenextdb-$date.sql.bz2"
      scp root@internet:/tmp/internet-$remotenextdb-$date.sql.bz2 /var/backup/mysql/internet-$remotenextdb-$date.sql.bz2
      ssh root@internet "rm /tmp/internet-$remotenextdb-$date.sql.bz2"
done
 
# This check only checks if the amount stored is the same as amount of databases listed for the day.   Doesn't do any more advanced error checking yet.
 
if [ "$localcount" -ne "$localstored" ]; then
   echo "There appears to been a problem with the intranet MySQL backup process"
fi
 
if [ "$remotecount" -ne "$remotestored" ]; then
   echo "There appears to been a problem with the internet MySQL backup process"
fi
 
# erases backup files that are two weeks old
find /var/backup/mysql -mtime +14 -exec rm {} \;
[+][-]10.03.2008 at 06:05AM PDT, ID: 22633404

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About this solution

Zones: Bourne-Again Shell (bash), Bourne Shell (sh)
Tags: Shell Script
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Solution Provided By: MikeOM_DBA
Participating Experts: 3
Solution Grade: A
 
 
[+][-]10.03.2008 at 06:40AM PDT, ID: 22633751

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[+][-]10.03.2008 at 07:42AM PDT, ID: 22634456

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[+][-]10.03.2008 at 12:41PM PDT, ID: 22637314

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[+][-]10.03.2008 at 01:43PM PDT, ID: 22637873

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[+][-]10.03.2008 at 02:10PM PDT, ID: 22638106

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[+][-]10.15.2008 at 10:33AM PDT, ID: 22723543

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[+][-]10.15.2008 at 10:38AM PDT, ID: 22723586

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[+][-]10.17.2008 at 11:58AM PDT, ID: 22744044

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