记一次使用 laravel-s 内存泄漏
环境
- 使用的是
swoole:alpine
的镜像构建环境
FROM phpswoole/swoole:php7.4-alpine
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories && cat /etc/apk/repositories
# 快速安装 PHP 扩展 install-php-extensions xxxCOPY --from=mlocati/php-extension-installer /usr/bin/install-php-extensions /usr/local/bin/RUN install-php-extensions pcntl redis pdo_mysql
WORKDIR /var/www
COPY . .
RUN chmod -R 0777 storage && chmod -R 0777 bootstrap/cache && composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/ && composer install
### 生成 laravels 启动文件 + 启动
RUN php artisan laravels publish --no-interaction
CMD ["php", "bin/laravels", "start", "--env=product"]
- 安装
laravels
的时候可以先注释Dockerfile
最后两行,先让环境启动起来## 把 [/mnt/d/xxxx] 替换成宿主机的代码目录 docker build . -t test-imagedocker run -d -it -p 80:5200 -v [/mnt/d/xxxx]:/var/dev --name=test-service -w /var/dev test-image /bin/shdocker exec -it memory-service /bin/sh```
错误
- 线上的机器一直报错日志
[2022-01-01 02:29:45 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1641, id=5) abnormal exit, status=255, signal=0[2022-01-01 02:30:24 *1642.0] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 65536 bytes) in /var/www/vendor/monolog/monolog/src/Monolog/DateTimeImmutable.php on line 22[2022-01-01 02:30:24 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1642, id=0) abnormal exit, status=255, signal=0[2022-01-01 02:31:07 *1646.2] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /var/www/vendor/nunomaduro/collision/src/Highlighter.php on line 138[2022-01-01 02:31:07 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1646, id=2) abnormal exit, status=255, signal=0[2022-01-01 02:31:14 *1647.3] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /var/www/vendor/nunomaduro/collision/src/Adapters/Laravel/Inspector.php on line 30[2022-01-01 02:31:14 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1647, id=3) abnormal exit, status=255, signal=0[2022-01-01 02:32:11 *1644.1] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/vendor/nunomaduro/collision/src/Writer.php on line 1[2022-01-01 02:32:11 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1644, id=1) abnormal exit, status=255, signal=0[2022-01-01 02:32:22 *1645.6] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 65536 bytes) in /var/www/vendor/nunomaduro/collision/src/Writer.php on line 135[2022-01-01 02:32:22 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1645, id=6) abnormal exit, status=255, signal=0[2022-01-01 02:33:44 *1653.3] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/vendor/nunomaduro/collision/src/Writer.php on line 1[2022-01-01 02:33:44 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1653, id=3) abnormal exit, status=255, signal=0[2022-01-01 02:33:55 *1650.5] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /var/www/vendor/monolog/monolog/src/Monolog/Utils.php on line 141[2022-01-01 02:33:55 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1650, id=5) abnormal exit, status=255, signal=0[2022-01-01 02:34:22 *1652.2] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/vendor/filp/whoops/src/Whoops/Run.php on line 1[2022-01-01 02:34:22 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1652, id=2) abnormal exit, status=255, signal=0[2022-01-01 02:34:24 *1649.4] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/vendor/nunomaduro/collision/src/Writer.php on line 1[2022-01-01 02:34:24 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1649, id=4) abnormal exit, status=255, signal=0[2022-01-01 02:34:38 *1651.0] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /var/www/vendor/nunomaduro/collision/src/Writer.php on line 193[2022-01-01 02:34:38 $19.0] WARNING Server::check_worker_exit_status(): worker(pid=1651, id=0) abnormal exit, status=255, signal=0[2022-01-01 02:36:13 *1656.3] ERROR php_swoole_server_rshutdown() (ERRNO 503): Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/vendor/nunomaduro/collision/src/Adapters/Laravel/IgnitionSolutionsRepository.php on line 1```
官方文档的说明
关于内存泄露
避免使用全局变量,如一定要,请手动清理或重置。
无限追加元素到全局变量、静态变量、单例,将导致内存溢出。
class Test { public static $array = []; public static $string = ''; // 某控制器 public function test(Request $req) { // 内存溢出 Test::$array[] = $req->input('param1'); Test::$string .= $req->input('param2'); } }
内存泄露的检测方法
修改
config/laravels.php
:worker_num=1, max_request=1000000
,测试完成后记得改回去;增加路由
/debug-memory-leak
,不设置任何路由中间件
,用于观察Worker
进程的内存变化情况;Route::get('/debug-memory-leak', function () { global $previous; $current = memory_get_usage(); $stats = [ 'prev_mem' => $previous, 'curr_mem' => $current, 'diff_mem' => $current - $previous, ]; $previous = $current; return $stats; });
启动
LaravelS
,请求/debug-memory-leak
,直到diff_mem
小于或等于零;如果diff_mem
一直大于零,说明全局中间件
或Laravel框架
可能存在内存泄露;完成
步骤3
后,交替
请求业务路由与/debug-memory-leak
(建议使用ab
/wrk
对业务路由进行大量的请求),刚开始出现的内存增涨是正常现象。业务路由经过大量请求后,如果diff_mem
一直大于零,并且curr_mem
持续增大,则大概率存在内存泄露;如果curr_mem
始终在一定范围内变化,没有持续变大,则大概率不存在内存泄露。如果始终没法解决,max_request是最后兜底的方案。
按照文档修改好配置并添加路由之后, 进入容器操作
docker exec -it memory-service /bin/shwatch -n 1 127.0.0.1:5200/debug-memory-leakEvery 1.0s: curl 127.0.0.1:5200/debug-memory-leak 2022-01-05 03:48:15
{"prev_mem":22620816,"curr_mem":22626592,"diff_mem":5776}
不断的观察,发现
diff_mem
一直不等于0
之前使用
dcat-admin
有过session
问题,参考了github.com/hhxsv5/laravel-s/issues..., 然后这个问题把App\Providers\AppServiceProvider::class
加入到了laravels.register_providers
配置中然后查看
register_providers
的逻辑在\Hhxsv5\LaravelS\Illuminate\CleanerManager::cleanProviders
方法, 可以看到这里调用了LaravelApplicaton
的register
方法,并且是强制register
由于
\Illuminate\Foundation\Application::register
方法,当服务提供者注册完毕之后, 会执行markAsRegistered
protected function markAsRegistered($provider) { $this->serviceProviders[] = $provider; $this->loadedProviders[get_class($provider)] = true; }
php-fpm
模式下没什么问题,但是在laravel-s
加持下,laravel-s
会把Application
这个对象作为整个生命周期来运行. 这就导致了serviceProviders
这个数组会不断的变大.
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