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swoole 进程繁忙时候\Swoole\Process::kill($pid, SIGTERM)终止运行后出现一大堆僵尸进程

### 问题描述
swoole 创建了一个 websocket, 对这个长连接进行压力测试连接保持中，当我使用使用 \Swoole\Process::kill($pid, SIGTERM) 想要终止程序运行的时候，进程没有全部结束出现了一大堆僵尸进程，“请问有没有什么好的方法避免出现僵尸进程” ？ 我尝试了一些方法都不行，现在唯一想到的就是把子进程id记录下来循环杀进程id了

### Swoole版本4.8.5，PHP版本8.1，以及操作系统版本信息centos

### 相关代码
```php

root        8962    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8963    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8964    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8965    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8966    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8967    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8968    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8969    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8970    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8971    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8972    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8973    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8974    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8975    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8976    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8977    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8978    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8979    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8980    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8981    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8982    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8983    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8984    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8985    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8986    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8987    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8988    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8989    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8990    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8991    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8992    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8993    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8994    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8995    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8996    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8997    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8998    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        8999    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9000    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9001    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9002    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9003    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9004    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9005    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9006    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9007    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9008    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9009    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9010    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9011    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9012    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9013    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9014    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9015    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9016    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9017    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9018    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9019    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9020    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9021    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9022    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
root        9023    8926  0 19:39 pts/1    00:00:00 [php] <defunct>
```

### 你期待的结果是什么？实际看到的错误信息又是什么？
swoole 创建了一个 websocket, 对这个长连接进行压力测试连接保持中，当我使用使用 \Swoole\Process::kill($pid, SIGTERM) 想要终止程序运行的时候，进程没有全部结束出现了一大堆僵尸进程，“请问有没有什么好的方法避免出现僵尸进程” ？ 我尝试了一些方法都不行，现在唯一想到的就是把子进程id记录下来循环杀进程id了

发布于4年前 · 13 次浏览 · 来自提问

amle

### Swoole版本4.8.5，PHP版本8.1，以及操作系统版本信息centos

### 相关代码
```php

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2022-05-27

Rango