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服务器随机脱机-phpMyAdmin中的MySQL各种警报问题

[英]Server going offline randomly - Problem with MySQL various alerts in phpMyAdmin

原文 2018-09-10 06:10:52 6 1 php/ mysql/ server/ phpmyadmin

Webapp goes offline randomly, the offline time is less than 2minutes. Webapp随机离线，离线时间少于2分钟。 (Because the downtime checker intervals are set for 2 min test and it isn't reporting this). （由于将停机时间检查器间隔设置为2分钟测试，因此未报告此情况）。 But users are complaining about unavailability. 但是用户抱怨不可用。

Getting various alerts in phpMyadmin doubts this is something related to a MySQL connection drop. 在phpMyadmin中得到各种警报的人怀疑这与MySQL连接下降有关。

Here are the alerts that are displayed in phpmyadmin: 这是在phpmyadmin中显示的警报：

Configuration. 组态。

ubuntu 16.04LTS up to date ubuntu 16.04LTS最新
CloudFlare enabled 启用了CloudFlare
PHP version: 7.0.30-0ubuntu0.16.04.1 PHP版本：7.0.30-0ubuntu0.16.04.1
Apache 阿帕奇
MYSQL Server version: 5.7.23-0ubuntu0.16.04.1 MYSQL Server版本：5.7.23-0ubuntu0.16.04.1

1 个解决方案

Looking these values it seems your tables aren't indexed (properly). 查看这些值，似乎您的表未正确索引。 Without knowing enough about your application my best bet would be: 在不了解您的应用程序的情况下，我最好的选择是：

Restart MySQL server (this is a must) 重新启动MySQL服务器（这是必须的）
Monitor these values after restart 重新启动后监视这些值
Enable and examine slow query logs, thus identifying queries causing these issues 启用并检查慢查询日志，从而识别导致这些问题的查询
Run EXPLAIN on these queries and try to introduce proper indices 对这些查询运行EXPLAIN并尝试引入适当的索引