chaosblade-help-zh-CN
  • README
  • blade
  • blade create
  • blade create cpu load
  • blade create disk burn
  • blade create disk fill
  • blade create mem load
  • blade create network delay
  • blade create network dns
  • blade create network drop
  • blade create network loss
  • blade create network corrupt
  • blade create network reorder
  • blade create network duplicate
  • blade create network occupy
  • blade create process kill
  • blade create process stop
  • blade create script delay
  • blade create script exit
  • blade create docker
    • blade create docker cpu
    • blade create docker network
    • blade create docker process
    • blade create docker container
  • blade create k8s
    • blade create k8s node-cpu
    • blade create k8s node-network
    • blade create k8s node-process
    • blade create k8s node-disk
    • blade create k8s pod-pod
    • blade create k8s pod-IO
    • blade create k8s pod-network
    • blade create k8s container-cpu
    • blade create k8s container-network
    • blade create k8s container-process
    • blade create k8s container-container
  • blade prepare jvm
  • blade create jvm
    • blade create jvm delay
    • blade create jvm return
    • blade create jvm script
    • blade create jvm cpufullload
    • blade create jvm OutOfMemoryError
    • blade create jvm CodeCacheFilling
    • blade create jvm throwCustomException
  • blade create servlet
    • blade create servlet delay
    • blade create servlet throwCustomException
  • blade server
  • blade status
  • blade version
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  • 介绍
  • 参数
  • 案例
  • 常见问题

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  1. blade create jvm

blade create jvm delay

介绍

指定类方法调用延迟

参数

以下是此场景特有参数,通用参数详见:[blade create jvm](blade create jvm.md)

--effect-count string     影响的请求条数
--effect-percent string   影响的请求百分比
--time string             延迟时间,单位是毫秒,必填项
--offset string           延迟时间上下偏移量,比如 --time 3000 --offset 1000,则延迟时间范围是 2000-4000 毫秒

案例

业务方法通过 future 获取返回值,代码如下:

@RequestMapping(value = "async")
@ResponseBody
public String asyncHello(final String name, long timeout) {
    if (timeout == 0) {
        timeout = 3000;
    }
    try {
        FutureTask futureTask = new FutureTask(new Callable() {
            @Override
            public Object call() throws Exception {
                return sayHello(name);
            }
        });
        new Thread(futureTask).start();
        return (String)futureTask.get(timeout, TimeUnit.MILLISECONDS);
    } catch (TimeoutException e) {
        return "timeout, " + e.getMessage() + "\n";
    } catch (Exception e) {
        return e.getMessage() + "\n";
    }
}

我们对 sayHello 方法调用注入 4 秒延迟故障,futureTask.get(2000, TimeUnit.MILLISECONDS) 会发生超时返回:

blade c jvm delay --time 4000 --classname=com.example.controller.DubboController --methodname=sayHello --process tomcat

{"code":200,"success":true,"result":"d6ebea0dc28b6ab3"}

停止实验:

blade d d6ebea0dc28b6ab3

常见问题

Previousblade create jvmNextblade create jvm return

Last updated 3 years ago

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