cURL error 60: SSL certificate problem: unable to get local issuer certificate (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)

CURL证书错误问题正确解决方法

方法1：自己自己下载一个根证书（不推荐）
下载地址：https://github.com/bagder/ca-bundle

// curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
// curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
# curl_setopt($ch, CURLOPT_CAPATH, __DIR__);
curl_setopt($ch, CURLOPT_CAINFO, __DIR__ . '/ca-bundle.crt');

方法2：自动找到系统里的证书路径（推荐）

# 安装
composer require composer/ca-bundle

# 通过下面方法即可返回证书路径
\Composer\CaBundle\CaBundle::getSystemCaRootBundlePath()

// curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
// curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
# curl_setopt($ch, CURLOPT_CAPATH, __DIR__);
curl_setopt($ch, CURLOPT_CAINFO, \Composer\CaBundle\CaBundle::getSystemCaRootBundlePath());

GuzzleHttp https证书问题解决

$client = new \GuzzleHttp\Client([
    \GuzzleHttp\RequestOptions::VERIFY => \Composer\CaBundle\CaBundle::getSystemCaRootBundlePath()
]);

Nginx Yum安装（官方）

To set up the yum repository, create the file named /etc/yum.repos.d/nginx.repo with the following contents:

[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key

MySQL二进制日志清理

  1. 查看过期天数

show variables like ‘%logs%’;

2. 设置过期天数（最大值为99）

set global expire_logs_days = 99;

MySQL8.0 支持binlog_expire_logs_seconds参数，顾名思义就是日志过期秒数。

自动二进制日志文件删除的天数。 默认值为0，表示“不自动删除”。 可能的删除发生在启动时和二进制日志刷新。

2.1 生效问题

flush logs;

如果你发现设置没有生效，可能需要执行此命令。

3. 查看现有的日志文件

SHOW BINARY LOGS;

4. 手动清理较旧日志

PURGE BINARY LOGS TO ‘mysql-bin.000007’;

将mysql-bin.000007以前的日志清理掉，又或者

PURGE BINARY LOGS BEFORE ‘2018-01-06 12:12:12’;

将2018-01-06 12:12:12以前的日志清理掉

5. 修改MySQL配置文件

expire_logs_days = 99

 

create table和主从复制一坑

正确：
CREATE TABLE `chapter_lock_reason` (
`id` INT(11) NOT NULL AUTO_INCREMENT
PRIMARY KEY (`id`)
);

错误的方式：
CREATE TABLE xxx.`chapter_lock_reason` (
`id` INT(11) NOT NULL AUTO_INCREMENT
PRIMARY KEY (`id`)
);

MySQL ARCHIVE 引擎，从库突然Can’t write; duplicate key in table ‘nopay_record” on query.

这是ARCHIVE引擎的BUG

Error ‘Can’t write; duplicate key in table ‘nopay_record” on query. Default database: ‘doufu’. Query: ‘insert into `nopay_record` (`user_id`, `novel_id`, `chapter_id`, `channel`, `created_at`) values (3927416, 365027, 2499984, NULL, ‘2017-12-29 23:38:01′)’

表结构:

CREATE TABLE `nopay_record` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_id` int(11) NOT NULL,
`novel_id` int(11) NOT NULL,
`chapter_id` int(11) NOT NULL,
`channel` tinyint(4) DEFAULT NULL,
`created_at` timestamp NOT NULL DEFAULT ‘0000-00-00 00:00:00’,
`updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=ARCHIVE AUTO_INCREMENT=440357 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;

改成innodb吧