后台
后台订单不连续，查看paypal收款账户发现000000157 订单用户已成功支付，但magento2后台没这个订单
用户开始投诉，运营很着急，开始找产品，产品说这是技术问题，转到技术这处理，技术开始排查
1.首先分析问题
用户已支付，订单没生成，以前的订单都没发现有这个问题，这段时间出现的
分析原因：说明paypal用户已支付了，支付成功后在通知系统时没有写到数据库里发生的问题
2.进后台先打开paypal调试，查看paypal支付日志
确实支付成功了，paypal支付是没有问题的，就看通知到系统有没有成功了
系统只有收到pyapal支付成功通知才会创建订单
报错日志
[2020-06-02 18:01:54] main.CRITICAL: The "000000117" order ID is incorrect. Verify the ID and try again. {"exception":"[object] (Exception(code: 0): The \"000000117\" order ID is incorrect. Verify the ID and try again. at /www/wwwroot/www.broadout.com/vendor/magento/module-paypal/Model/Ipn.php:143)"} []
3.查访问日志找支付成功通知
20/Jun/2020:00:05:40 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:00:13:00 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:00:29:49 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:00:39:25 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:01:02:26 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:01:27:10 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:02:07:54 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
[20/Jun/2020:02:14:13 +0800] "POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn )"
发现支付通知都是500异常，只有个别是200成功的
发现其它报错问题
AH01075: Error dispatching request to
php还没有处理完就超时了
max_execution_time = 1800
max_input_time = 1800
超时 100秒改为 1800
apache 添加了
RequestReadTimeout handshake=0 header=20-600,MinRate=500 body=20,MinRate=500
Warning: Unknown: Input variables exceeded 1000.
意思就是输入（提交）的变量超过默认 1000 个了，如果需要变更限制，戳开 php.ini
搜索 max_input_vars，把前面的分号 ; 去掉，1000 改大一点，最后重启 PHP 即可
max_input_vars = 10000
保存，重启下环境 好了
------------------------------------------------------------------------------------------
查找过程
POST /paypal/ipn/ HTTP/1.1" 500 - "-" "PayPal IPN ( https://www.paypal.com/ipn
\/paypal\/ipn\/ HTTP\/1.1\" 500
-----------------------------------
sed -n '/2019-12-28 11:26/,/2019-12-28 12:13/p' nohup.out | grep '接收到xx请求参数，开始处理' | wc -l
sed -n '/2019-12-28 11:26/,/2019-12-28 12:13/p' nohup.out | grep '接收到xx请求参数，开始处理' | wc -l
有效
查找ipn 200 成功的
\/paypal\/ipn\/ HTTP\/1.1" 200
查找ipn 500
\ HTTP\/1.1" 500
-------------------------
POST /paypal/ipn/ HTTP/1.1" 200
POST \/paypal\/ipn\/ HTTP\/1.1" 200 查找成功的
POST \/paypal\/ipn\/ HTTP\/1.1" 500 查找失败的
tail -f 实时查看日志文件 tail -f 日志文件log
tail - 10 f 实时查看日志文件 后10行
tail -f -n 10 payment.log linux查看日志后10行
搜寻字符串
grep ‘搜寻字符串’ filename
按ctrl+c 退出