《MYSQL教程小型Drupal數(shù)據(jù)庫備份以及大型站點MySQL備份策略分享》要點:
本文介紹了MYSQL教程小型Drupal數(shù)據(jù)庫備份以及大型站點MySQL備份策略分享,希望對您有用。如果有疑問,可以聯(lián)系我們。
MYSQL應(yīng)用中小站點簡單備份策略
MYSQL應(yīng)用基于drupal的中小行網(wǎng)站,我們可以使用backup_migrate模塊,該模塊提供了定期備份的功能,備份的時間、保留多少個備份等等設(shè)置,設(shè)置好之后,定期執(zhí)行cron即可備份成功. 一般的Drupal小站,我們只需使用svn即可,在服務(wù)器端,我們把備份好的數(shù)據(jù)提交到svn,就可以達到備份的目的.由于Drupal的備份模塊可以設(shè)置備份保留的文件份數(shù),因此不會造成太多的備份文件,從而導致svn很大.
MYSQL應(yīng)用下面是一個簡單的備份腳本,放置到站點根目錄,然后加到crontab每天執(zhí)行即可.
MYSQL應(yīng)用 #!/bin/bash date #start date DRUSH_PHP=/bin/php #php path export DRUSH_PHP drush cron svn st sites/default/files/backup_migrate/scheduled/ | grep '^!' | awk '{print $2}' | xargs svn delete --force svn add sites/default/files/backup_migrate/scheduled/* svn ci sites/default/files/backup_migrate/scheduled/ -m 'add backup files' date #end date
MYSQL應(yīng)用crontab的設(shè)置如下
MYSQL應(yīng)用大型站點MySQL備份策略
MYSQL應(yīng)用如果是數(shù)據(jù)庫稍大的站點,使用svn臨時備份就略顯單薄,這時需要使用MySQL備份策略,一般情況下我們需要把整個數(shù)據(jù)庫都備份壓縮,然后定期轉(zhuǎn)移到備份數(shù)據(jù)庫或者放到其他的云服務(wù)器,這里給出一個簡單的PHP示例代碼.
MYSQL應(yīng)用
#!/usr/bin/php -q
<?php
$to = "gaoxinzhao@gmail.com";
$hostname = exec('/bin/hostname');
$mycnf = "/home/robbin/.my.cnf";
$ignore = array('information_schema', 'test', 'mysql', 'wdcpdb');
function trimw($str) {
$str = str_replace(array("n", "r", "t", " ", "o", "xOB"), '', $str);
return $str;
}
if (!file_exists($mycnf)) {
mail($to, "No .my.cnf exists on $hostname", "MySQL cannot dump because .my.cnf is missing on $hostname .") ;
exit("cant get user creds");
}
$myconf = file_get_contents($mycnf) or die( "Failed to open bmesh_admin's .my.cnf" );
preg_match( "/buser(.*)/", $myconf, $matches ) or die( mail($to, "No username in .my.cnf on $hostname", "MySQL cannot dump on $hostname"));
$usr = (explode('=', $matches[0]));
$user = trimw($usr[1]);
preg_match( "/bpassword(.*)/", $myconf, $matches ) or die( mail($to, "No password in .my.cnf on $hostname", "MySQL cannot dump on $hostname"));
$pass = (explode('=', $matches[0]));
$password = trimw($pass[1]);
mysql_connect("localhost",$user,$password) or die ("could not connect: " . mysql_error());
mysql_select_db("mysql");
$result = mysql_query("show databases");
$bpath = "/home/robbin/backup/mysql";
$btime = date("Y-m-d H:i:s");
$bstamp = strtotime($btime);
$byear = date("Y", $bstamp);
$bmonth = date("m", $bstamp);
$bday = date("d", $bstamp);
$btod = date("H-i-s", $bstamp);
while ($res = mysql_fetch_array($result))
{
$myDb = $res["Database"];
if (in_array($myDb, $ignore)) continue;
$mdir = "$bpath/$byear/$bmonth/$bday/$btod/$myDb";
$out = `mkdir -p $mdir`;
$myFile = $myDb . ".sql";
$bldCmd = "cd $mdir ; ";
$bldCmd .= "mysqldump -u$user -p$password --single-transaction --add-drop-table -R -c -Q $myDb > $myFile ;";
//$bldCmd .= "chmod 644 $myFile ; ";
//$bldCmd .= "chown root:root $myFile ; ";
$bldCmd .= "gzip -9 $myFile";
print "Backing up $myDbn";
print "Securing $myDbn";
$out = `$bldCmd`;
}
$out = `chmod 700 $bpath/$byear`;
print "$outn";
print "Backups are in $bpathn";
MYSQL應(yīng)用crontab的設(shè)置
MYSQL應(yīng)用此外我們需要把備份的數(shù)據(jù)還要定期傳送到其他服務(wù)器上,才會避免服務(wù)器崩潰而引發(fā)數(shù)據(jù)丟失.備份及時網(wǎng)站才有保證,這里僅僅只是筆者的一點點操作分享,大家有更好的備份策略,歡迎共享.
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