在本地備份遠程數據庫

Question

我必須在一定的時間間隔內在活動服務器上備份我的數據庫。爲此，我創建了一個批處理文件，並使用普通的Windows Schedular計劃執行它。我在批處理文件中調用了一個php文件來執行備份功能。在PHP文件，我用正常的MySQL查詢連接到數據庫並獲取數據結構，但這總是拋出錯誤說

Warning: mysql_connect() [function.mysql-connect]: [2002] A connection attempt failed because the connected party did not (trying to connect via tcp://[remote database server]) in [file on the local server] on line xx

請幫我解決，這樣我可以備份遠程數據庫在本地這個錯誤。

Answer 1

錯誤代碼2002意味着MySQL不在遠程服務器上運行，或者您可能使用了錯誤的端口號？你確定你用來連接的端口號是開放的，而不是用防火牆或其他東西阻塞嗎？ http://dev.mysql.com/doc/refman/5.5/en/can-not-connect-to-server.html

Answer 2

你可以使用的有活的服務器JSON數據發送到本地服務器和本地插入這樣你不」的另一種選擇：

在MySQL參考他們解釋2002年錯誤瞭解更多關於在這裏您不必處理配置，您可以輕鬆地爲應用程序中的其他模塊或可能需要相同數據的任何其他應用程序擴展相同的進程，而無需重新開始工作。

Answer 3

<?php 
ini_set('display_errors', 1); 
ini_set('max_execution_time', 0); 

$notify_me = 'true'; 
$email = 'notify email'; 
$this_server = 'FQDN of local server'; 
$remote_server = 'FQDN of remote server'; 

$dbserver = "localhost"; 
$dbuser = "root"; 
$dbpass = ""; 
$time_of_day = '22'; 
$day_of_week = 'Sat'; 
$backup_user = 'backups'; 
$who_am_i = 'Name for email to go to'; 
$backup_server = 'remote ftp server to upload to'; 
$ftp_user = 'ftp user name'; 
$ftp_pass = 'ftp password'; 



$command="php -q /home/$backup_user/create_mysql_dumps.php"; 
$job="0 $time_of_day * * * $command"; 
echo "(crontab -l | grep -v \"$command\" ; echo \"$job\") | crontab -"; 






shell_exec("(crontab -l | grep -v \"$command\" ; echo \"$job\") | crontab -"); 


@shell_exec("adduser $backup_user"); 



mysql_connect($dbserver, $dbuser, $dbpass); 

mysql_select_db("mysql"); 


function dirToArray($directory) { 

    $array_items = array(); 
    $handle = @ opendir($directory); 
     while (false !== ($file = @ readdir($handle))) { 
      if ($file != "." && $file != "..") { 
       if (is_dir($directory)) { 
        $array_items[] = $file; 
       } 

      } 
     } 
     @ closedir($handle); 

    return $array_items; 

} 





$sql = mysql_query("show databases"); 


while($row = mysql_fetch_array($sql)){ 
@shell_exec("mkdir /home/$backup_user/data/"); 
shell_exec("chmod 777 /home/$backup_user/data/"); 


shell_exec("rm /home/$backup_user/data/$row[0].sql -f"); 
    shell_exec("mysqldump -u $dbuser -p$dbpass $row[0] > /home/$backup_user/data/$row[0].sql"); 

    echo "Dbase Backup created for $row[0]\n"; 
    usleep(2000); 
    if(file_exists("/home/$backup_user/data/$row[0].sql")){ 

    if($notify_me == 'true'){ 
    mail($email, "Dbase Backup created for $row[0]", "Hello $who_am_i This is your backup script telling you that its working and saving a backup for $row[0] in /home/$backup_user/data/$row[0].sql", null, "-f root@$this_server"); 

     } 
    } 

} 


@shell_exec("mkdir /home/$backup_user/data/"); 
shell_exec("chmod 777 /home/$backup_user/data/"); 

shell_exec("rm /home/$backup_user/data/all-databases.sql"); 
shell_exec("mysqldump -u $dbuser -p$dbpass --all-databases > /home/$backup_user/data/all-databases.sql"); 
echo "Dbase Backup created for All Databases\n"; 
    if(file_exists("/home/$backup_user/data/$row[0].sql")){ 
     if($notify_me == 'true'){ 
    mail($email, "Dbase Backup created for All Databases", "Hello $who_am_i This is your backup script telling you that its working and saving a backup for ALL SERVERS HAS BEEN CREATED", null, "-f root@$this_server"); 

     } 
    } 

$homes = dirToArray("/home"); 
$exclude = array('backups', 'mail_admin', 'trials', 'vmail', 'lost+found', 'aquota.user', 'aquota.group'); 
foreach($homes as $home){ 

    if(!in_array($home, $exclude) & is_dir("/home/$home")){ 
    echo "File System Backup created for /home/$home\n"; 


     @mkdir("/home/$backup_user/files/"); 
     @mkdir("/home/$backup_user/files/$home"); 
     @shell_exec("rm /home/$backup_user/files/$home/* -R -f"); 
     shell_exec("cp /home/$home/* /home/$backup_user/files/$home/ -R -p"); 
     if($notify_me == 'true'){ 
    mail($email, "File System Backup created for /home/$home", "Hello $who_am_i This is your backup script telling you that its working and saving a backup for /home/$home in /home/$backup_user/files/$home", null, "-f root@$this_server"); 

     } 
    usleep(2000); 
    } 



} 
if(date("D") == $day_of_week){ 

@shell_exec("rm /home/$backup_user/named/* -R -f"); 
@shell_exec("rm /home/$backup_user/httpd/* -R -f"); 
@shell_exec("rm /home/$backup_user/mysql/my.cnf -f"); 
@shell_exec("rm /home/$backup_user/php/php.ini -f"); 


@mkdir("/home/backups/named"); 
@mkdir("/home/backups/httpd"); 
@mkdir("/home/backups/named"); 
@mkdir("/home/backups/mysql"); 
@mkdir("/home/backups/php"); 


shell_exec("cp /var/named/* /home/$backup_user/named/ -R -p"); 
shell_exec("cp /etc/httpd/conf/* /home/$backup_user/httpd/ -R -p"); 
shell_exec("cp /etc/my.cnf /home/$backup_user/mysql/my.cnf -p"); 
shell_exec("cp /etc/php.ini /home/$backup_user/php/php.ini -p"); 
shell_exec("cp /etc/named.conf /home/$backup_user/named/named.conf -p"); 

@mkdir("/home/$backup_user/zip"); 


@shell_exec("rm /home/$backup_user/$this_server-backup-weekly.tar.gz -f"); 
shell_exec("tar -czvf /home/$backup_user/$this_server-backup-weekly.tar.gz /home/$backup_user --exclude=/home/$backup_user/$this_server-backup-weekly.tar.gz"); 


if(file_exists("/home/$backup_user/$this_server-backup-weekly.tar.gz")){ 
echo "Weekly Archive created for $this_server\n"; 
     if($notify_me == 'true'){ 
    mail($email, "Weekly Archive created for $this_server", "Hello $who_am_i This is your backup script telling you that its working and saving a weekly archive for $server at /home/$backup_user/$this_server-backup-weekly.tar.gz", null, "-f root@$this_server"); 

     } 
    echo "sending backup to " . "http://$backup_server/backme_up.php\n"; 

    $file = "/home/$backup_user/$this_server-backup-weekly.tar.gz"; 

    $fp = fopen($file, 'r'); 

    $conn_id = ftp_connect($backup_server) or die("Couldn't connect to $ftp_server"); 
    echo "$conn_id, $ftp_user, $ftp_pass"; 
    ftp_login($conn_id, $ftp_user, $ftp_pass); 
    ftp_chdir($conn_id, "/home/$ftp_user"); 
    $contents = ftp_nlist($conn_id, "."); 
    if (ftp_delete($conn_id, "$this_server-backup-weekly.tar.gz")) { 
     echo "$this_server-backup-weekly.tar.gzdeleted successful\n"; 
     } else { 
     echo "could not delete $file\n"; 
     } 
    if (ftp_put($conn_id, "$this_server-backup-weekly.tar.gz", $file, FTP_ASCII)) { 
     echo "successfully uploaded $file\n"; 
     } else { 
     echo "There was a problem while uploading $file\n"; 
     } 


    ftp_close($conn_id); 
    fclose($fp); 
} 
} 


die(); 
exit;