Я использую следующую систему:
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.1 (Maipo)
$ uname -a
Linux ip-X-X-X-X.ec2.internal 3.10.0-229.14.1.el7.x86_64 #1 SMP Tue Aug 25 11:21:22 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux
$ rpm -q php
php-5.4.32-1.el7.remi.x86_64
$
и время от времени я получаю следующую ошибку:
Warning: mysql_connect(): Host 'ip-X-X-X-X.ec2.internal' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts' in /var/www/html/X/wp-includes/wp-db.php on line 1454
Error establishing a database connection
This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at ip-X-X-X-X.ec2.internal. This could mean your host's database server is down.
Are you sure you have the correct username and password?
Are you sure that you have typed the correct hostname?
Are you sure that the database server is running?
If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.
... после того, как я бегу mysqladmin flush-hosts ошибка уходит.
Мой вопрос: что именно вызывает это? и что я могу настроить, чтобы эта ошибка не повторялась слишком часто?