1
#!/bin/bash
#
# use for backup MySQL slave data
# written by hch
#
######################################################
CFGFILE=/etc/my.cnf ##
BINFILE=$(gawk -F‘[ \t]*=[ \t]*‘ ‘$1~/log[-_]bin$/{print $2}‘ $CFGFILE | grep ${0#*_})
#BINDIR=${BINFILE%/*}
BINPREFIX=${BINFILE##*/}
DATEFORMAT="date +‘%Y-%m-%d %H:%M:%S‘"
LOGERROR_PREFIX="[ERROR \`$DATEFORMAT\` ] :"
LOGPROCESS_PREFIX="[PROCESS \`$DATEFORMAT\` ] :"
LOGSUCCESS_PREFIX="[SUCCESS \`$DATEFORMAT\` ] :"
BAKDIR=/backup/pharmbk/db222/incebak ##
FULLBAKDIR=/backup/pharmbk/db222/fullbak ##
LOGFILE=$BAKDIR/baklog
POINTFILE=$BAKDIR/pointfile
DUMPFILE=InnoDBexport
DATAPOCESS=0
OSUSER=backupme ##
OSGROUP=admins ##
USER=backupme
PASS=12345
SOCK=/var/lib/mysql/prods/db222/mysql.sock
PORT=3306
if echo "$BINFILE" | grep -q ‘/‘;then
BINDIR=${BINFILE%/*}
else
BINDIR=$(mysql -u$USER -p$PASS -S$SOCK -ss -e "show variables like ‘datadir‘" | awk ‘{print $2}‘)
fi
if [ ! -e $BAKDIR -o ! -d $BAKDIR ]
then
mkdir -p $BAKDIR
fi
MYSQLARG="mysql -u$USER -p$PASS -S$SOCK"
MYSQLDUMPARG="mysqldump -u$USER -p$PASS -S$SOCK"
# only do rsync op
if [ $# -eq 1 ]
then
if [ "$1" == "rsync" -a -e "$FULLBAKDIR" ]
then
eval echo "$LOGPROCESS_PREFIX do rsync on `date`" >> $LOGFILE
echo "sudo rsync -av --include=$BINPREFIX.* --exclude=* $BINDIR/ $BAKDIR/" >> $LOGFILE
sudo rsync -av --include=$BINPREFIX.* --exclude=* $BINDIR"/" $BAKDIR"/" >> $LOGFILE 2>&1
exit
else
eval echo "$LOGERROR_PREFIX full backup not done,do it first!" >> $LOGFILE
exit
fi
eval echo "$LOGERROR_PREFIX unrecognize args ,plz check again!" >> $LOGFILE
exit
fi
#if [ ! -e "$FULLBAKDIR" ]
#then
# eval echo "$LOGERROR_PREFIX full backup not start,do not rsync bin log!" >> $LOGFILE
# exit
#fi
echo "****************************" >> $LOGFILE
eval echo "$LOGPROCESS_PREFIX $0: start backup on `date`" >> $LOGFILE
# stop slaver
eval echo "$LOGPROCESS_PREFIX stop slave " >> $LOGFILE
stop_slave=$MYSQLARG" -e ‘stop slave‘"
echo "$stop_slave"|sh
# sleep for a while
sleep 10
# record the pointer
eval echo "$LOGPROCESS_PREFIX write binlog pointer" >> $LOGFILE
pointer=$(eval $MYSQLARG" -ss -e ‘show master status‘"|awk -F‘[.\t ]‘ ‘{print $2}‘)
echo $(date +%Y%m%d) ${pointer} >> $POINTFILE
# flush log
eval echo "$LOGPROCESS_PREFIX switch binlog to next" >> $LOGFILE
flush_logs=$MYSQLARG" -e ‘flush logs‘"
echo "$flush_logs"|sh
# rsync binlog to bakdir (remove binlong file in BAKDIR which not exist in BINDIR)
eval echo "$LOGPROCESS_PREFIX rsync binlog to $BAKDIR" >> $LOGFILE
sudo rsync -av --delete-before --include=$BINPREFIX.* --exclude=* $BINDIR"/" $BAKDIR"/" >> $LOGFILE 2>&1
if [ $? -eq 0 ]
then
eval echo "$LOGSUCCESS_PREFIX rsync success" >> $LOGFILE
else
eval echo "$LOGERROR_PREFIX rsync file failed" >> $LOGFILE
fi
# see if the first day of this month
if [ $(date +%d) == "04" ]
then
# do full backup
eval echo "$LOGPROCESS_PREFIX do full backup" >> $LOGFILE
DATAPOCESS=1
CURRENTDIR=`date +%Y%m`
if [ ! -e $FULLBAKDIR -o ! -d $FULLBAKDIR ]
then
mkdir -p $FULLBAKDIR
fi
if [ ! -e $FULLBAKDIR/$CURRENTDIR -o ! -d $FULLBAKDIR/$CURRENTDIR ]
then
mkdir -p $FULLBAKDIR/$CURRENTDIR
fi
db_list=$MYSQLARG" -e ‘show schemas‘"
for db in `echo "$db_list"|sh|sed ‘1d;/information_schema/d;/performance_schema/d;‘`
do
eval echo "$LOGPROCESS_PREFIX Begin backup $db to $FULLBAKDIR/$CURRENTDIR" >> $LOGFILE
sudo mysqlhotcopy -u $USER -p $PASS -S $SOCK $db $FULLBAKDIR/$CURRENTDIR >> $LOGFILE 2>&1
if [ $? -eq 0 ]
then
eval echo "$LOGSUCCESS_PREFIX Backup $db finish" >> $LOGFILE
else
eval echo "$LOGERROR_PREFIX can not backup $db" >> $LOGFILE
fi
done
# remove files belong to innodb
SQL="select CONCAT(TABLE_SCHEMA,‘.‘,TABLE_NAME) FROM INFORMATION_SCHEMA. TABLES WHERE ENGINE=‘InnoDB‘"
#$MYSQLARG -ss -e "$SQL" #| while read L
exec 3< <($MYSQLARG -ss -e "$SQL")
while read L <&3
do
TABLE=${L#*.}
DB=${L%.*}
# do remove op
eval echo "$LOGPROCESS_PREFIX remove innodb raw file for $TABLE" >> $LOGFILE
\rm $FULLBAKDIR/$CURRENTDIR/$DB/"$TABLE."*
# dump this table
eval echo "$LOGPROCESS_PREFIX export table $TABLE" >> $LOGFILE
$MYSQLDUMPARG --add-drop-table --single-transaction --opt --quick -B $DB --tables "$TABLE" >> $FULLBAKDIR/$CURRENTDIR/$DUMPFILE_$DB.sql
done
# keep one full backup,so if last full backup data exist,remove it from backup directory after new full backup finish
LASTDIR=`date +%Y%m -d ‘1 month ago‘`
if [ -d $FULLBAKDIR/$LASTDIR ]
then
eval echo "$LOGPROCESS_PREFIX remove $LASTDIR backup data from disk" >> $LOGFILE
cd $FULLBAKDIR && rm -rf $LASTDIR
else
eval echo "$LOGPROCESS_PREFIX no last backup data exist" >> $LOGFILE
fi
fi
# start slave
eval echo "$LOGPROCESS_PREFIX restart slave " >> $LOGFILE
start_slave=$MYSQLARG" -e ‘start slave‘"
echo "$start_slave"|sh
eval echo "$LOGPROCESS_PREFIX end backup at `date`" >> $LOGFILE
if [ $DATAPOCESS -eq 1 ]
then
eval echo "$LOGPROCESS_PREFIX begin process backup data at `date`" >> $LOGFILE
# change bak dir owner ,so rm can operate normally
sudo /bin/chown -R $OSUSER.$OSGROUP $FULLBAKDIR
# zip backup data
eval echo "$LOGPROCESS_PREFIX zip data in $FULLBAKDIR/$CURRENTDIR" >> $LOGFILE
cd $FULLBAKDIR/$CURRENTDIR && for db in *
do
sudo tar zvcf $db.tar.gz $db >> $LOGFILE 2>&1
rm -rf $db
done
if [ $? -eq 0 ]
then
eval echo "$LOGSUCCESS_PREFIX zip done successfully" >> $LOGFILE
else
eval echo "$LOGERROR_PREFIX error happen in zip data" >> $LOGFILE
exit 1
fi
# change bak dir owner ,so rm can operate normally
sudo /bin/chown -R $OSUSER.$OSGROUP $FULLBAKDIR
fi
## END本文出自 “12208412” 博客，请务必保留此出处http://12218412.blog.51cto.com/12208412/1899497
原文地址：http://12218412.blog.51cto.com/12208412/1899497
