# blade create process stop

暂停进程

## 介绍

此实验会暂停进程。支持命令行或者命令中进程匹配。

此实验可以验证程序 Hang 时，系统的容错能力。

## 参数

```
--process string       进程关键词，会在整个命令行中查找
--process-cmd string   进程命令，只会在命令中查找
--timeout string   设定运行时长，单位是秒，通用参数
```

## 案例

```
# 暂停包含 SimpleHTTPServer 关键词的进程
blade create process stop --process SimpleHTTPServer

# 暂停 java 进程
blade create process stop --process-cmd java
```

## 实现原理

\--process 内部使用 ps -ef | grep KEY 查找；--process-cmd 内部使用 pgrep 命令查找。使用 kill -STOP PIDS 暂停进程，使用 kill -CONT PIDS 恢复进程。

## 常见错误

Q：查找不到 UID，无法恢复暂停的进程 A：手动执行 kill -CONT PIDS


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