用mysqlhotcopy 备份指定数据库

作者：coralzd      网址  www.freebsdsystem.org/mysqlhotcopy_backup/  转载注明出处

下面共享一个一直在线上运行一年多的mysql备份脚本。
  mysqlhotcopy是一个Perl脚本，最初由Tim Bunce编写并提供。它使用LOCK TABLES、FLUSH TABLES和cp或scp来快速备份数据库。它是备份数据库或单个表的最快的途径，但它只能运行在数据库目录所在的机器上。mysqlhotcopy只用于备份MyISAM。它运行在Unix和NetWare中。

 

#!/usr/bin/env bash
DATE=`date +%y%m%d.%H`
DATADIR="/data0/mysql/data"
BACKDIR_DAILY="/data0/local/mysqld/daily"
BACKDIR_HOURLY="/data0/local/mysqld/hourly"
INTERVAL="$1"
TMPDIR="/var/tmp/"
TMPDIRH="$TMPDIR"hourly
TMPDIRD="$TMPDIR"daily
LOGDIR="/data0/log/dbbackup/"
KEEPH_LOCAL=1
USER=hotcopy
PASSWD=hotcopy
KEEPH_NFS=7
KEEPD_LOCAL=3
KEEPD_NFS=14
HOST=`hostname -s`
MYVERSION="5.1"

mkdir -p $LOGDIR
case $INTERVAL in
hourly | HOURLY | Hourly | 1 )
echo "" && echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo "Performing HOURLY level backup -- `date +$m-$d.%H:%M:%S`" && echo ""
echo "" && echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" >>"$LOGDIR"hourly.log
echo "Performing HOURLY level backup -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"hourly.log
mkdir -p $TMPDIRH
mkdir -p $BACKDIR_HOURLY
/usr/local/mysql/bin/mysqlhotcopy --allowold test -u $USER -p $PASSWD $TMPDIRH > /dev/null
echo "" && echo "" && echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo "Compressing -- `date +$m-$d.%H:%M:%S`"
echo "Compressing -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"hourly.log
cd $TMPDIRH
find . -maxdepth 1 -type d -user mysql -exec tar czf {}-"$DATE".tar.gz '{}' \;
find . -maxdepth 1 -type d -user mysql -exec rm -rf {} \;

echo ""
echo "Copying Local... -- `date +$m-$d.%H:%M:%S`"
echo "Copying Local... -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"hourly.log
chattr -i $BACKDIR_HOURLY
find $BACKDIR_HOURLY -type f -mtime +7 -exec rm {} \;
mv * $BACKDIR_HOURLY
chattr +i $BACKDIR_HOURLY

echo ""
echo "Moving NFS... -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"hourly.log
echo "Ending -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"hourly.log

exit 0
;;
daily | DAILY | Daily | 2 )
echo "" && echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo "Performing DAILY level backup -- `date +$m-$d.%H:%M:%S`" && echo ""
echo "" && echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" >>"$LOGDIR"daily.log
echo "Performing DAILY level backup -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"daily.log
mkdir -p $TMPDIRD
mkdir -p $BACKDIR_DAILY
/usr/local/mysql/bin/mysqlhotcopy --allowold test -u $USER -p $PASSWD $TMPDIRD > /dev/null
echo "" && echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo "Compressing -- `date +$m-$d.%H:%M:%S`"
echo "Compressing -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"daily.log
cd $TMPDIRD
find . -maxdepth 1 -type d -user mysql -exec tar czf {}-"$DATE".tar.gz '{}' \;
find . -maxdepth 1 -type d -user mysql -exec rm -rf {} \;

echo "Copying Local... -- `date +$m-$d.%H:%M:%S`"
echo "Copying Local... -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"daily.log
chattr -i $BACKDIR_DAILY
find $BACKDIR_DAILY -type f -mtime +$KEEPD_LOCAL -exec rm -rf '{}' \;
mv * $BACKDIR_DAILY
chattr +i $BACKDIR_DAILY

echo "Ending -- `date +$m-$d.%H:%M:%S`" >>"$LOGDIR"daily.log
exit 0
;;
* )
echo ""
echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo "Invalid Selection" 1>&2
exit 1
esac

将脚本置于crond中，在指定时间来运行。例如
 

0 23,00,01,02,03,04,06,07,08,17,18 * * * /usr/local/sbin/mysqlbackup.sh 2