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rsync/rsnapshot

tag-icon • tag-icon linux ssh backup rsync rsnapshot
rsync/rsnapshot

我正在使用 rsnapshot，我的配置如下：

config_version  1.2
snapshot_root   /home/user/.snapshots/
cmd_cp  /bin/cp
cmd_rm  /bin/rm
cmd_rsync       /usr/bin/rsync
cmd_ssh /usr/bin/ssh
cmd_logger      /usr/bin/logger
cmd_du  /usr/bin/du
cmd_rsnapshot_diff      /usr/bin/rsnapshot-diff
interval        hourly  24
interval        daily   7
interval        weekly  4
verbose 2
loglevel        3
logfile /home/user/rsnapshot.log
lockfile        /home/user/rsnapshot.pid
backup  [email protected]:/home/user/ website/
backup_script   [email protected]:/home/user/backup_mysql.sh website/mysql/

我的 SQL 备份文件：（故意省略了一些内容）

### Setup dump directory ###
BAKRSNROOT=/.snapshots/tmp

#####################################
### ----[ No Editing below ]------###
#####################################
### Default time format ###
TIME_FORMAT='%H_%M_%S%P'

### Make a backup ###
backup_mysql_rsnapshot(){
        local DBS="$($MYSQL -u $MUSER -h $MHOST -p$MPASS -Bse 'show databases')"
        local db="";
        [ ! -d $BAKRSNROOT ] && ${MKDIR} -p $BAKRSNROOT
        ${RM} -f $BAKRSNROOT/* >/dev/null 2>&1
#       [ $VERBOSE -eq 1 ] && echo "*** Dumping MySQL Database ***"
#       [ $VERBOSE -eq 1 ] && echo -n "Database> "
        for db in $DBS
        do
                local tTime=$(date +"${TIME_FORMAT}")
                local FILE="${BAKRSNROOT}/${db}.${tTime}.gz"
#               [ $VERBOSE -eq 1 ] && echo -n "$db.."
                ${MYSQLDUMP} --single-transaction -u ${MUSER} -h ${MHOST} -p${MPASS} $db | ${GZIP} -9 > $FILE
        done
#               [ $VERBOSE -eq 1 ] && echo ""
#               [ $VERBOSE -eq 1 ] && echo "*** Backup done [ files wrote to $BAKRSNROOT] ***"
}

### Die on demand with message ###
die(){
        echo "$@"
        exit 999
}

### Make sure bins exists.. else die
verify_bins(){
        [ ! -x $GZIP ] && die "File $GZIP does not exists. Make sure correct path is set in $0."
        [ ! -x $MYSQL ] && die "File $MYSQL does not exists. Make sure correct path is set in $0."
        [ ! -x $MYSQLDUMP ] && die "File $MYSQLDUMP does not exists. Make sure correct path is set in $0."
        [ ! -x $RM ] && die "File $RM does not exists. Make sure correct path is set in $0."
        [ ! -x $MKDIR ] && die "File $MKDIR does not exists. Make sure correct path is set in $0."
        [ ! -x $MYSQLADMIN ] && die "File $MYSQLADMIN does not exists. Make sure correct path is set in $0."
        [ ! -x $GREP ] && die "File $GREP does not exists. Make sure correct path is set in $0."
}

### Make sure we can connect to server ... else die
verify_mysql_connection(){
        $MYSQLADMIN  -u $MUSER -h $MHOST -p$MPASS ping | $GREP 'alive'>/dev/null
        [ $? -eq 0 ] || die "Error: Cannot connect to MySQL Server. Make sure username and password are set correctly in $0"
}

### main ####
verify_bins
verify_mysql_connection
backup_mysql_rsnapshot

我如何远程执行该.sh 文件来获取数据库并将其拉回？

编辑：错误：

 rsnapshot hourly
----------------------------------------------------------------------------
rsnapshot encountered an error! The program was invoked with these options:
/usr/local/bin/rsnapshot hourly
----------------------------------------------------------------------------
ERROR: /usr/local/etc/rsnapshot.conf on line 18:
ERROR: backup_script \
         [email protected]:/home/user/backup_mysql.sh" \
     is not executable or can't be found. Please use an absolute \
     path.
ERROR: ---------------------------------------------------------------------
ERROR: Errors were found in /usr/local/etc/rsnapshot.conf,
ERROR: rsnapshot can not continue. If you think an entry looks right, make
ERROR: sure you don't have spaces where only tabs should be.

该文件的 chmod 为 777，因此没有被隐藏

我尝试过类似的事情，但没有复制或提取任何东西。

backup_script  /usr/bin/ssh [email protected] 'mysqldump -u root --all-databases | gzip --rsyncable > ~/all.sql.gz'    unused2

尝试过：

backup_script /usr/bin/ssh [email protected] "/home/user/backup.script"  whatever/

它起作用了，但是无法复制文件。

编辑：

backup_script   /usr/bin/ssh [email protected] "/home/user/backup_mysql.sh"   blank/
backup_script   /usr/bin/scp -r [email protected]:/.rsnapshots/tmp/ /.rsnapshots/tmp/       user/mysql/

得到：

usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]
           [-l limit] [-o ssh_option] [-P port] [-S program]
           [[user@]host1:]file1 ... [[user@]host2:]file2
----------------------------------------------------------------------------
rsnapshot encountered an error! The program was invoked with these options:
/usr/local/bin/rsnapshot hourly
----------------------------------------------------------------------------
ERROR: backup_script /usr/bin/scp -r [email protected]:/.rsnapshots/tmp/ returned 1
WARNING: Rolling back "user/mysql/"

答案1

首先，您应该将备份脚本移至远程系统。请记住，此处的文件是在远程系统上执行的，而不是在本地系统（运行 rsnapshot 的系统）上执行的。然后，一旦程序在远程系统上执行，您就应该将文件移回本地系统。

类似这样的事情应该有效：

backup_script /usr/bin/ssh [email protected] "/home/user/backup.script"  whatever/
backup_script /usr/bin/scp -r [email protected]:/home/user/your_data/ /.your_snapshot_root/rsnapshots/tmp/ target_dir_to_store_backups/

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