Pool error is Swoft\Connection\Pool\AbstractPool::popByChannel(): Send of 5 bytes failed with errno=110 Operation timed out file=/var/www/vendor/swoft/connection-pool/src/AbstractPool.php line=289. (At /var/www/vendor/swoft/db/src/DB.php line 81)

[stevenscl]

Q	A
Bug report?	yes
Feature request?	no
Swoft version	2.0.11
Swoole version	4.8.6
PHP version	7.4.27
Runtime environment	Docker etc

Describe the bug
数据库连接池popByChannel() Send of 5 bytes failed with errno=110 Operation timed out，导致请求失败

Expected behavior
应用启动一段时间过后，通常12小时以上，当再次发起请求，会出现如上报错

Screenshots

Details

Describe what you are trying to achieve and what goes wrong.

// paste output here

Provide minimal script to reproduce the issue

// paste code

[stevenscl]

Dockerfile

FROM phpswoole/swoole:4.8-php7.4-alpine RUN set -ex \ && sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/' /etc/apk/repositories \ && apk update \ && apk add --no-cache --virtual .build-deps ca-certificates curl tar xz libressl libstdc++ openssl openssl-dev tzdata pcre autoconf dpkg-dev dpkg file g++ gcc libc-dev make pkgconf re2c pcre-dev zlib-dev libpng-dev freetype-dev libjpeg-turbo-dev icu-dev libzip-dev mosquitto-dev \ && pecl update-channels \ && pecl install redis-stable \ && pecl install mongodb-stable \ && pecl install Mosquitto-alpha \ && docker-php-ext-enable redis mongodb mosquitto \ && docker-php-ext-install pdo_mysql bcmath gd sysvshm sysvmsg sysvsem zip intl

[stevenscl]

数据库连接池配置

[stevenscl]

测试发现，minActive = 5，则前面连续5次请求均失败，第6次恢复正常

[laishaolin]

这个问题已经很久了官方都没有解决，只能自己在定时器上写个查询，不停的给DB发查询请求来保活；我现在改了连接池的底层实现，但偶尔还会来一个上面那样的请求错误。
这样的更新维护效率swoft终究是要被淘汰的。