MongoDB 备份脚本

àì夳堔傛蜴生んèń 2022-08-07 06:55 254阅读 0赞

适用于mongodb任何架构(standalon、replic set、sharding)备份脚本。  
需要安装perl的MongoDB模块，安装方法参见：使用cpanm安装perl相关模块 http://www.ttlsa.com/html/2030.html 。代码这东西，仁者见仁智者见智，一分价钱一分货，所以对于优秀的程序员不要抠门。对语言的熟练度高，编程经验丰富的程序员，写出来的代码，两个字：漂亮！

下面的脚本只需更改变量$mongodb相关参数即可，如有更好的更便捷的方法请赐教。

#!/bin/perl
    #################################
    ### author: www.ttlsa.com     ###
    ### QQ群: 39514058            ###
    ### E-mail: service@ttlsa.com ###
    #################################
    
    use strict; 
    use File::Path;
    use POSIX;
    use MongoDB;
    use Data::Dumper;
    
    my $mongodump='/usr/local/mongodb/bin/mongodump';
    my $mongodb={
        'admin_1'=>{    #定义组别
            'email'=>'39514058@qq.com',  #定义备份出错时邮件通知地址，此处未包含该功能。
            'server'=>[     #定义mongodb相关信息
                {
                'replset'=>1,    #是否复制集
                'sharding'=>0,   #是否分片
                'setname'=>"TTLSA_COM",  #复制集名称
                'mongodsvr'=>["10.1.11.155:27017","10.1.11.156:27017","10.1.11.157:27017"],   #mongod服务器IP和端口号
                'configsvr'=>[],  #config server服务器IP和端口号
                'mongossvr'=>[],  #mongos server服务器IP和端口号
                'backupdir'=>"/data/backup/mongodb_ttlsa_com",  #备份目录
                'user'=>"",      #用户名
                'passwd'=>"",    #密码
                'interval'=>15,  #备份轮滚周期
                },
    
                {
                'replset'=>1,
                'sharding'=>1,
                'setname'=>"shard1",
                'mongodsvr'=>["10.1.22.21:27029","10.1.22.22:27029","10.1.22.23:27029"],
                'configsvr'=>["10.1.22.21:27028","10.1.22.22:27028","10.1.22.23:27028"],
                'mongossvr'=>["10.1.22.21:27027","10.1.22.22:27027","10.1.22.23:27027"],
                'backupdir'=>"/data/backup/mongodb_shard1",
                'user'=>"",
                'passwd'=>"",
                'interval'=>15,
                },
    
                {
                'replset'=>0,
                'sharding'=>0,
                'setname'=>"shard1",
                'mongodsvr'=>["10.1.27.22:30000","10.1.27.22:30001","10.1.20.16"],
                'configsvr'=>[],
                'mongossvr'=>[],
                'backupdir'=>"/data/backup/mongodb_standalon",
                'user'=>"root",
                'passwd'=>"www.ttlsa.com",
                'interval'=>15,
                }
                ]},
            #'admin_2'=>{}			
    };
    
    while(my($group,$value)=each(%$mongodb)){
        foreach my $node (@{$value->{'server'}}){
            my $tmp_stdout = tmpnam();
            my $tmp_stderr = tmpnam();
            if($node->{'replset'} && !$node->{'sharding'}){
                my $dir = $node->{'backupdir'};
                mkpath $dir unless -e $dir;
                my $return=backup_rotate($dir,$node->{'interval'});
                my $hosts = $node->{'setname'}.'/'.join(',', @{$node->{'mongodsvr'}});
                if(($node->{'user'} ne '') && ($node->{'passwd'} ne '')){
                    my $retval=system("$mongodump -vvvvv -h $hosts -u $node->{'user'} -p $node->{'passwd'} --oplog -o $dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                }else{
                    my $retval=system("$mongodump -vvvvv -h $hosts --oplog -o $dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                }
            }elsif($node->{'sharding'}){
                my $mongod_hosts=$node->{'setname'}.'/'.join(',', @{$node->{'mongodsvr'}});
                my $mongos_hosts=$node->{'setname'}.'/'.join(',', @{$node->{'mongossvr'}});
                my $mongod_dir = $node->{'backupdir'}.'/'.'mongodsvr';
                my $config_dir = $node->{'backupdir'}.'/'.'configsvr';
                mkpath $mongod_dir unless -e $mongod_dir;
                mkpath $config_dir unless -e $config_dir;
                my $return=backup_rotate($mongod_dir,$node->{'interval'});
                my $return=backup_rotate($config_dir,$node->{'interval'});
                if(($node->{'user'} ne '') && ($node->{'passwd'} ne '')){
                    my $conn = MongoDB::Connection->new("host" => "mongodb://$mongos_hosts","db_name" => "admin", "username" => "$node->{'user'}", "password" => "$node->{'passwd'}");
                    my $db = $conn->get_database('config');
                    my $coll=$db->get_collection('settings');
                    my $ret=$coll->update({ _id => "balancer" }, { '$set' => { 'stopped'=> 'true' } },{'false'},{'true'});
                    my $retval=system("$mongodump -h $mongos_hosts -u $node->{'user'} -p $node->{'passwd'} --db config -o $config_dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                    my $retval=system("$mongodump -h $mongod_hosts -u $node->{'user'} -p $node->{'passwd'} --oplog -o $mongod_dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                    my $ret=$coll->update({ _id => "balancer" }, { '$set' => { 'stopped'=> 'false' } },{'false'},{'true'});
                }else{
                    my $conn = MongoDB::Connection->new("host" => "mongodb://$mongos_hosts");
                    my $db = $conn->get_database('config');
                    my $coll=$db->get_collection('settings');
                    my $ret=$coll->update({ _id => "balancer" }, { '$set' => { 'stopped'=> 'true' } },{'false'},{'true'});
                    my $retval=system("$mongodump -h $mongos_hosts --db config -o $config_dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                    my $retval=system("$mongodump -h $mongod_hosts --oplog -o $mongod_dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                    my $ret=$coll->update({ _id => "balancer" }, { '$set' => { 'stopped'=> 'false' } },{'false'},{'true'});
                }
            }else{
                foreach my $each (@{$node->{'mongodsvr'}}){
                    my $dir = $node->{'backupdir'}.'/'.$each;
                    mkpath $dir unless -e $dir;
                    my $return=backup_rotate($dir,$node->{'interval'});
                    if(($node->{'user'} ne '') && ($node->{'passwd'} ne '')){
                        my $retval=system("$mongodump -h $each -u $node->{'user'} -p $node->{'passwd'} -o $dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                    }else{
                        my $retval=system("$mongodump -h $each -o $dir/dump.1 >$tmp_stdout 2>$tmp_stderr");
                    }
                }
            }
        }
    }
    
    sub backup_rotate {
        my $backup_dir=shift;
        my $retral=shift;
        my @aa=sort{$b<=>$a} 1..$retral;
    
        if(chdir "/$backup_dir"){
            for my $num (@aa){
                my $old=$num+1;
                if(-e "dump.$num"){
                    if(-e "dump.$old"){
                        system("rm -rf dump.$old && mv dump.$num dump.$old");
                    }else{
                        system("mv dump.$num dump.$old");
                    }
                }
            }
        }else{
           return "Failed to change dir $backup_dir : $!";
        }
    }

转至： [http://www.ttlsa.com/mongodb/mongodb-backup-and-recovery-\_lower\_-ttlsa-tutorial-series-mongodb/][http_www.ttlsa.com_mongodb_mongodb-backup-and-recovery-_lower_-ttlsa-tutorial-series-mongodb]

[http_www.ttlsa.com_mongodb_mongodb-backup-and-recovery-_lower_-ttlsa-tutorial-series-mongodb]: http://www.ttlsa.com/mongodb/mongodb-backup-and-recovery-_lower_-ttlsa-tutorial-series-mongodb/