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Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

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Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

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Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

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Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

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Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

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Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_nlist() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 438

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Warning: ftp_pwd() expects parameter 1 to be resource, null given in /var/www/html/www.mobabel.net/wp-admin/includes/class-wp-filesystem-ftpext.php on line 230

Tagged: Horizontal partitioning

0

[总结]数据库解耦和拆分

随着业务越来越复杂,数据量越来越大,并发量越来越大,数据库的性能越来越低。好不容易找运维申请了两台机器,让DBA部署了几个实例,想把一些业务库拆分出来,却发现拆不出来,扩不了容,尴尬! 因为数据库强关联在一起,无法通过增加数据库实例扩容,就是一个耦合的典型案例。