chaosblade-io/chaosblade

An easy to use and powerful chaos engineering experiment toolkit.（阿里巴巴开源的一款简单易用、功能强大的混沌实验注入工具）

chaosblade's Issues

没别的事，我就是来提第一个Issue的

问题

Issue模板还没有，建议加上。

Cannot get the return value when executing the command

Issue Description

Type: bug report or feature request

Describe what happened (or what feature you want)

Describe what you expected to happen

预期：希望允许Java代码能够获取返回值
实际：不能获取返回值

How to reproduce it (as minimally and precisely as possible)

Tell us your environment

Anything else we need to know?

Please provide English Documentation

The Documentation is currently in Chinese and the Readme doesn't provide enough information.

[WeeklyReport] Weekly report for Chaos Blade 2019-4-12 to 2019-4-19

Weekly Report of Chaos Blade

This is a weekly report of Chaos Blade. It summarizes what have changed in the project during the passed week, including pr merged, new contributors, and more things in the future.
It is all done by @chaosblade-bot which is a collaborate robot.

Repo Overview

Basic data

Baisc data shows how the watch, star, fork and contributors count changed in the passed week.

Watch	Star	Fork	Contributors
51	802 (↑83)	100 (↑14)	2 (↑1)

Issues & PRs

Issues & PRs show the new/closed issues/pull requests count in the passed week.

New Issues	Closed Issues	New PR	Merged PR
4	9	2	3

PR Overview

Thanks to contributions from community, Chaos Blade team merged 3 pull requests in the repository last week. They are:

• Update chaos experiment model document and add logic flow document (#42)
• fix the disk mount point querying (#41)
• bugfix: fix destroy experiment is delete k8s pod error (#38)

Code Review Statistics

Chaos Blade encourages everyone to participant in code review, in order to improve software quality. Every week @chaosblade-bot would automatically help to count pull request reviews of single github user as the following. So, try to help review code in this project.

Contributor ID	Pull Request Reviews

Contributors Overview

It is Chaos Blade team's great honor to have new contributors from community. We really appreciate your contributions. Feel free to tell us if you have any opinion and please share this open source project with more people if you could. If you hope to be a contributor as well, please start from https://github.com/chaosblade-io/chaosblade/blob/master/CONTRIBUTING.md .
Here is the list of new contributors:

@Cenyol

Thanks to you all.

Note: This robot is supported by Collabobot.

Support mysql? According to usage create mysql, the error is: cannot get port from local.Thanks!

Issue Description

Type: bug report or feature request

Describe what happened (or what feature you want)

Describe what you expected to happen

How to reproduce it (as minimally and precisely as possible)

Tell us your environment

Anything else we need to know?

The param timeout for blade cmd

Because of the quality of blade, sometime it may lead to us can't interact with target system. For example, we inject network fault with 80% loss rate, and cause we can't connect the server by ssh never. May be the full load for CPU also cause the system couldn't response us at all.

So, we need guardian, and it could terminate something and recover state after we loss control. I think the param 'timeout' may be appropriate our requirement.

blade cpu --timeout 60s ...

blade network --timeout 30s ...

and so on

run "docker cpu fullload" ,return "No such container"

Issue Description

run "docker fullload" ,return "No such container"

Describe what happened (or what feature you want)

First,I use docker ps find the containerID ,
Then,use blade c docker cpu fl --container containerID

Return:{"code":604,"success":false,"error":"Error: No such container: 3b42b47c83e4-cpu\n exit status 1"}

Am I using it correctly ?

[WeeklyReport] Weekly report for Chaos Blade 2019-3-22 to 2019-3-29

Weekly Report of Chaos Blade

This is a weekly report of Chaos Blade. It summarizes what have changed in the project during the passed week, including pr merged, new contributors, and more things in the future.
It is all done by @chaosblade-bot which is a collaborate robot.

Repo Overview

Basic data

Baisc data shows how the watch, star, fork and contributors count changed in the passed week.

Watch	Star	Fork	Contributors
30	361 (↑322)	33 (↑31)	1 (-)

Issues & PRs

Issues & PRs show the new/closed issues/pull requests count in the passed week.

New Issues	Closed Issues	New PR	Merged PR
11	2	1	0

PR Overview

Thanks to contributions from community, Chaos Blade team merged 0 pull requests in the repository last week. They are:

Code Review Statistics

Chaos Blade encourages everyone to participant in code review, in order to improve software quality. Every week @chaosblade-bot would automatically help to count pull request reviews of single github user as the following. So, try to help review code in this project.

Contributor ID	Pull Request Reviews

New Contributors

We have no new contributors in this project this week.
Chaos Blade team encourages everything about contribution from community.
For more details, please refer to https://github.com/chaosblade-io/chaosblade/blob/master/CONTRIBUTING.md .

Note: This robot is supported by Collabobot.

Add support for network experiments for kubernetes pod

Issue Description

Type: feature request

Describe what happened (or what feature you want)

Network experiments for k8s pod, for example, network delay, network loss and network block

Tell us your environment

kubernetes

How is support for Dubbo? I hope to have detailed guidance documents.

对于 Dubbo 开发的框架的故障注入是原生支持的吗？有没有详细的使用文档呢？想要学习一下。

[WeeklyReport] Weekly report for Chaos Blade 2019-4-26 to 2019-5-3

Weekly Report of Chaos Blade

This is a weekly report of Chaos Blade. It summarizes what have changed in the project during the passed week, including pr merged, new contributors, and more things in the future.
It is all done by @chaosblade-bot which is a collaborate robot.

Repo Overview

Basic data

Baisc data shows how the watch, star, fork and contributors count changed in the passed week.

Watch	Star	Fork	Contributors
55	930 (↑31)	109 (↑3)	3 (-)

Issues & PRs

Issues & PRs show the new/closed issues/pull requests count in the passed week.

New Issues	Closed Issues	New PR	Merged PR
3	0	1	1

PR Overview

Thanks to contributions from community, Chaos Blade team merged 1 pull requests in the repository last week. They are:

• bugfix: fix --numcpu parameter strong check (#54)

Code Review Statistics

Chaos Blade encourages everyone to participant in code review, in order to improve software quality. Every week @chaosblade-bot would automatically help to count pull request reviews of single github user as the following. So, try to help review code in this project.

Contributor ID	Pull Request Reviews

New Contributors

We have no new contributors in this project this week.
Chaos Blade team encourages everything about contribution from community.
For more details, please refer to https://github.com/chaosblade-io/chaosblade/blob/master/CONTRIBUTING.md .

Note: This robot is supported by Collabobot.

Add fault-injection model of the chaosblade

Issue Description

Type: doc

Describe what happened (or what feature you want)

Chaosblade and its executors rely on this model implementation, this document can help you understand the internal implementation of chaosblade.

Change device flag to interface flag in network chaos experiment

Issue Description

Type: other request

Describe what happened (or what feature you want)

the --device flag in network experiment means network interface, so changed to --interface is more better.

Describe what you expected to happen

blade create network delay --time 3000 --interface eth0

when I blade prepare jvm --process business, it return 408 for error “too many processes” ?

Issue Description

Type: problem issue

Describe what happened (or what feature you want)

blade prepare jvm -- process dubbo.consumer,
info:
{"code":408,"success":false,"error":"too many process"}

Describe what you expected to happen

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

How to reproduce it (as minimally and precisely as possible)

1. As the wiki says

Tell us your environment

win10 subsystem: ubuntu
java version: 1.8.0_201
spring framework: 5.1.4

Anything else we need to know?

Network command prompt to optimize

Issue Description

feature request

Describe what happened (or what feature you want)

Network command prompt to optimize. After change the port command will be easier to understand.

invoke-port change to foreign-port
service-port change to local-port

blade create network delay --invoke-port 9527 --time 5000 --device eth0

      --invoke-port string    Port for invoke
      --offset string         Delay offset time, ms
      --service-port string   Port for external service

Currently there is support for dubbo, will support springcloud later?

目前有对dubbo支持，后续会对springcloud进行支持吗

k8s kill pod name

Hi
I'm using blade to kill k8s pods. But can only kill one pod at one time
Is it possilbe to kill multiple pods at the same time ?
Thanks in advance

"disk fill" filled a wrong mount point with MAX file size

Issue Description

Type: bug report

Describe what happened (or what feature you want)

blade create disk fill
fill the wrong mount point with max size data.

Describe what you expected to happen

fill the right mount point with specified size data.

How to reproduce it (as minimally and precisely as possible)

1. Ubuntu 18.04 / blade 0.0.1
2. wiki blade disk fill command.

Tell us your environment

Ubuntu 18.04
blade 0.0.1

Anything else we need to know?

Hope chaosblade could support to be invoked by API

Until now, it could be only used by Blade CLI, but if chaosblade could provide the invoke ways of API, it should be more popular in the future.

Can't stop k8s experiment correctly

Issue Description

Type: bug report

Describe what happened (or what feature you want)

./blade create k8s delete --pod <podname>  --namespace <namespace>
{"code":200,"success":true,"result":"9673223f227275fe"}

在创建混沌实验-删除pod后，停止混沌实验

./blade destroy 9673223f227275fe
{"code":604,"success":false,"error":"Error from server (NotFound): pods \"<podname>\" not found\n exit status 1"}

停止混沌实验失败，找不到这个pod。原因是该pod已被删除，重启后并不在是原来的podname。

Describe what you expected to happen

这里应该正常停止混沌实验，虽然pod已被正确的删除，而新pod也已经启动成功，整体来说实验室成功的，但是不能正常停止实验，对代码有强迫症的人来说是很难受的。
建议这里验证pod有无重启，并并忽略后5位的hash码。

How to reproduce it (as minimally and precisely as possible)

1. ./blade create k8s delete --pod --namespace
2. ./blade destroy

Tell us your environment

MacOS，kubectl v1.13.0

Anything else we need to know?

mac build failed

Use 'make build_linux' on mac, occued error.
error meassage :
docker run --rm
-v :/go
-w /go/src/github.com/chaosblade-io/chaosblade
chaosblade-build-musl:latest
make: *** No targets specified and no makefile found. Stop.
make: *** [build_linux] Error 2

I have to install go env?

这里有针对k8s的chaos功能么？ 我自己用go写了一个

这是阿里开源的chaosblade对么？ 我看文章里有针对k8s的功能。 我现在的工作也是需要模拟各种k8s的故障来测试。所以也用go写了个k8s chaos。 不知道能交流一下么。 如果有必要，我也可以贡献一下自己的代码

Add script file chaos experiment such as delay and exit fault

Issue Description

Type: feature request

Describe what you expected to happen

Execute the following commands to inject a delay or an error code into a function in a specified script:
blade c script delay --time 3000 --file /home/admin/appctl.sh --function-name offline
blade c script exit --file /home/admin/appctl.sh --function-name offline --exit-code 2

Support a dry-run mode

Issue Description

feature request

Describe what happened (or what feature you want)

For most users , the first time applying chaos experiments must be very nervous. And there may be some reasons lead to failure. So consider to implement a dry_run mod .

Describe what you expected to happen

dry_run mod may achieve the following effects:

• Do the read-only check actions ahead the experiments. Such as 'Envment Check: tc install check' 'Illegal parameter: mounted on value not exist ' and so on.
• Print simulation logs which will happen. Such as 'Successfully shutdown instance A'.

If you are interested in this topic, please refer to : #73

能不能搞个中文的wiki?

求中文版 英文版看的费劲

when i blade prepare jvm --process business, it return 604, why?

Issue Description

when i blade prepare jvm --process business, it return 604, why?
{"code":604,"success":false,"error":"Error: Unable to access jarfile /root/lib/sandbox/lib/sandbox-core.jar\n exit status 1"}

Under sudo, execute blade create network drop [], can't really destroy [Linux]

cmd

sudo ./blade create network drop --service-port 8888

response

{"code":200,"success":true,"result":"2b3bf570994e859e"}

查看iptables下已新增drop配置，接口测试后发现配置生效

cmd

sudo ./blade destroy 2b3bf570994e859e

接口测试后发现配置依然存在，查看iptables rules发现未被清除

Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8888
2 DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:8888

[WeeklyReport] Weekly report for Chaos Blade 2019-4-5 to 2019-4-12

Weekly Report of Chaos Blade

This is a weekly report of Chaos Blade. It summarizes what have changed in the project during the passed week, including pr merged, new contributors, and more things in the future.
It is all done by @chaosblade-bot which is a collaborate robot.

Repo Overview

Basic data

Baisc data shows how the watch, star, fork and contributors count changed in the passed week.

Watch	Star	Fork	Contributors
48	713 (↑124)	83 (↑18)	1 (-)

Issues & PRs

Issues & PRs show the new/closed issues/pull requests count in the passed week.

New Issues	Closed Issues	New PR	Merged PR
9	4	4	4

PR Overview

Thanks to contributions from community, Chaos Blade team merged 4 pull requests in the repository last week. They are:

• refactor: unify the disk experiment flag name and add value judgment (#35)
• refactor: modify device to interface in network experiment (#34)
• feature: add query command to query the network and the disk device t… (#27)
• Simpify docker build: using go mod package manger and docker multi-stage builds. (#16)

Code Review Statistics

Chaos Blade encourages everyone to participant in code review, in order to improve software quality. Every week @chaosblade-bot would automatically help to count pull request reviews of single github user as the following. So, try to help review code in this project.

Contributor ID	Pull Request Reviews

New Contributors

We have no new contributors in this project this week.
Chaos Blade team encourages everything about contribution from community.
For more details, please refer to https://github.com/chaosblade-io/chaosblade/blob/master/CONTRIBUTING.md .

Note: This robot is supported by Collabobot.

对 Dubbo 的支持如何？希望有详细的指导文档

对于 Dubbo 开发的框架的故障注入是原生支持的吗？有没有详细的使用文档呢？想要学习一下。

Add query command to get the necessary flags for chaos experiments

Issue Description

Type: feature request

Necessary flags such as the --mount-on flag of disk experiments and the --device flag of network experiments.

Describe what you expected to happen

For example:
Execute blade query network device command to query network interfaces, the command returns: ["eth0", "eth1", ...].

Execute blade query disk mounted-on command to query mounted disks, the command returns: ["/", "/home"].

We can abstract the following model:

blade query <TARGET> <FILED> <FLAGS>

In the future, we can control the output format by extending flags, for example, -o json|wide.

Anything else we need to know?

The advantage of this feature is that the user does not have to consider the chaos experiment parameters which type of value he should choose.

@aspnetdb @chaosblade-io/chaosblade_team

"blade",The execution path is relative and cannot be returned

blade 的执行路径为相对路径无法正常返回,在配置了PATH后希望能够在任何的目录可以正确返回。

blade 相对路径无法获得正确返回。

bash-4.4# pwd
/root
bash-4.4# blade status --type create
{
        "code": 200,
        "success": true,
        "result": []
}

blade 绝对路径获得正确返回。
`
bash-4.4# /usr/local/chaosblade/blade status --type create
{
"code": 200,
"success": true,
"result": [
{
"Uid": "19e24c09575c72a3",
"Command": "cpu",
"SubCommand": "fullload",
"Flag": "--debug false --help false --numcpu =",
"Status": "Error",
"Error": "--numcpu value must be a positive integer",
"CreateTime": "2019-04-22T06:53:05.976019806Z",
"UpdateTime": "2019-04-22T06:53:06.004371602Z"
},
{
"Uid": "e152863c6c363c92",
"Command": "cpu",
"SubCommand": "fullload",
"Flag": "--debug false --help false --numcpu 8",
"Status": "Success",
"Error": "",
"CreateTime": "2019-04-22T06:53:15.452192207Z",
"UpdateTime": "2019-04-22T06:53:16.605675253Z"
}
]
}

`

The way the servlet is created does not work for the delay mechanism

When I was creating a chaotic experiment for a servlet, I wanted a specific access address to be delayed for a few seconds. After the configuration was completed, it did not take effect. The configuration information is as follows.

Jar package start command：nohup java -Dserver.port=8081 -Djava.net.preferIPv4Stack=true -Dproject.name=ttt -jar ttt.jar > ttt.nohup.log 2>&1 &

Java agent：./blade prepare jvm --process ttt

Created command:./blade create servlet delay --time 3300 --pathinfo /test1 --process ttt --servletpath http://192.168.139.135:8081

After the configuration is complete, after all the displays are successful, the URL is accessed and found to be invalid.

If there is a solution, you can send the solution to my email address at [email protected]

I hope that you can have a detailed Chinese document to describe the role of each parameter and the configuration entry case for mounting different types of services. thank you very much. At the same time, I hope that chaosblade will be more perfect in the future road show and can go further.

blade create docker -h Examples don't contain argument numcpu

Issue Description

bug report

Describe what happened (or what feature you want)

./blade create docker -h Examples don't contain argument numcpu
Examples:

Create a docker container full cpu load experiment

chaosbd create docker cpu fullload --container 1c8986a4f899

Describe what you expected to happen

Tell us your environment

CentOS Linux release 7.2.1511 (Core)

The flag `--process` in `blade p jvm` command means what

Type: feature request

the command "blade p jvm --process application name", the application name means what? the PID of java application?

"disk fill" cannot deatroy

Type: bug report

I used './blade create disk fill --mount-on /home --size 1024' to create disk fill experiment, then I found a file named 'chaos_diskfilled.log.data' in /home, but the size of it is 2G (I use 'du -sh /home/chaos_diskfilled.log.data'), and this could not be destroyed by using './blade destroy uid'

ubuntu run docker cpu fullload ok, but on centos fail

Issue Description
Type: help wanted

Describe what happened (or what feature you want)

First:
Though I read issue #12, I still can't understand.
I haven't pull docker image registry.cn-hangzhou.aliyuncs.com/chaosblade/chaosblade-agent:0.0.3 or other version. When I run
./blade create docker cpu fullload --container 4c5c3a7706ec --numcpu 8 on the Ubuntu system ,it return {"code":200,"success":true,"result":"83484e440a710e46"} .
But when I run on the Centos system, it return ******no such container .

Second:
When create docker cpu fullload failed on the Centos System, I pull the images "registry.cn-hangzhou.aliyuncs.com/chaosblade/chaosblade-agent:0.0.3" , and run "docker run -d -t --pid container:4c5c3a7706ec --ipc container:4c5c3a7706ec --name 4c5c3a7706ec-cpu sh -c /usr/local/chaosblade/bin/chaos_burncpu --start " , it return "docker: --pid:invalid PID mode". Where is my mistake?

execute a docker experiment，return Error: No such container

Issue Description

execute a docker experiment

command: blade create docker cpu fullload --container containerID
return:

{"code":604,"success":false,"error":"Error:` No such container: 8e8c31d91a2c-cpu\n exit status 1"}

Do i need enter the container and run the command ?

connection refused when I prepare jvm

Issue Description

Type: bug report

Describe what happened (or what feature you want)

sudo blade prepare jvm -p 23306
{"code":802,"success":false,"error":"Get http://127.0.0.1:38895/sandbox/default/module/http/sandbox-module-mgr/reset?1=1: dial tcp 127.0.0.1:38895: connect: connection refused"}

Describe what you expected to happen

succeed.

How to reproduce it (as minimally and precisely as possible)

cannot.

Tell us your environment

Linux 3.12.74-60.64.96-default

Anything else we need to know?

CPU benchmark timeout support

Issue Description

Remote host may not response while benchmarking CPU by full loads. So need add param to auto stop benchmark.

Maybe this param name can be named timeout, just as same as stress.

`stress' imposes certain types of compute stress on your system

Usage: stress [OPTION [ARG]] ...
...
 -t, --timeout N    timeout after N seconds
...

from stress --help command, in blade we can use with the same param name:

blade create cpu fullload --timeout 5 

Who is using ChaosBlade

Who is Using ChaosBlade

First of all, thanks sincerely for constantly using and supporting ChaosBlade. We will try our best to keep ChaosBlade better, and keep growing ChaosBlade community. To attract more people to use and contribute to ChaosBlade, please comment in this issue to include the following information:

• Your company, school or organization.
• Your city and country.
• Your contact info: blog, email, twitter (at least one).
• For what scenario do you use ChaosBlade

You can refer to the following sample answer for the format:

• Company: Alibaba
• Location: Hangzhou, China
• Contact: [email protected]
• Purpose: fault-injection for testing system fault tolerance

---

首先诚挚地感谢每一位持续关注并使用 ChaosBlade 的朋友。我们会持续投入，力图把 ChaosBlade 变得更好，把 ChaosBlade 社区变得更加繁荣。为了更好的聆听社区的声音，吸引更多的人使用和参与，我们期待您在此提交一条评论, 评论内容包括:

• 您所在公司、学校或组织
• 您所在的城市、国家
• 您的联系方式: 微博、邮箱、微信 (至少一个)
• 您将 ChaosBlade 用于哪些业务场景

您可以参考下面的样例来提供您的信息：

• 公司：阿里巴巴
• 网址：https://www.alibabagroup.com/ （方便用获取LOGO）
• 地点：**杭州
• 联系方式：[email protected]
• 场景：做故障注入，测试系统的容错性

如果你被邀请加入 Google Group 后没有权限访问内容，则参考一下链接解决：
https://support.google.com/groups/answer/1067205?hl=zh-Hans#join

再次感谢你的参与!!!

Mutual influence when different CPU are fullload with experimental destroy

The server has N CPUs
Mount one of the CPUs fullload
./blade create cpu fullload --numcpu 1
{"code":200,"success":true,"result":"51d50db1faf4fb80"}

Then mount one of the CPUs fullload
./blade create cpu fullload --numcpu 1
{"code":200,"success":true,"result":"96a4b01617f5f2f7"}

Destroy one of the mount experiments
./blade destroy 51d50db1faf4fb80

At this time, both CPU mount experiments will be destroyed.

[WeeklyReport] Weekly report for Chaos Blade 2019-3-29 to 2019-4-5

Weekly Report of Chaos Blade

This is a weekly report of Chaos Blade. It summarizes what have changed in the project during the passed week, including pr merged, new contributors, and more things in the future.
It is all done by @chaosblade-bot which is a collaborate robot.

Repo Overview

Basic data

Baisc data shows how the watch, star, fork and contributors count changed in the passed week.

Watch	Star	Fork	Contributors
44	588 (↑155)	64 (↑23)	1 (-)

Issues & PRs

Issues & PRs show the new/closed issues/pull requests count in the passed week.

New Issues	Closed Issues	New PR	Merged PR
10	7	2	2

PR Overview

Thanks to contributions from community, Chaos Blade team merged 2 pull requests in the repository last week. They are:

• refactor: change service-port to local-port and invoke-port to remote… (#20)
• Add .editorconfig & cpu load test params (#8)

Code Review Statistics

Chaos Blade encourages everyone to participant in code review, in order to improve software quality. Every week @chaosblade-bot would automatically help to count pull request reviews of single github user as the following. So, try to help review code in this project.

Contributor ID	Pull Request Reviews
@aspnetdb	1

New Contributors

We have no new contributors in this project this week.
Chaos Blade team encourages everything about contribution from community.
For more details, please refer to https://github.com/chaosblade-io/chaosblade/blob/master/CONTRIBUTING.md .

Note: This robot is supported by Collabobot.

The release version of the package is too large, 89M!

你好，请问一下能优化一下release版本包大小嘛， 测试版本是 0.0.2 ，截图如下：

版本包体积太大不方便和其它agent整合，agent分发太耗时！

Can you support the chaos experiment of memory?

Can you support the chaos experiment of memory, such as, out of memory and memory leak ? Thank you for all you do.

[WeeklyReport] Weekly report for Chaos Blade 2019-4-19 to 2019-4-26

Weekly Report of Chaos Blade

This is a weekly report of Chaos Blade. It summarizes what have changed in the project during the passed week, including pr merged, new contributors, and more things in the future.
It is all done by @chaosblade-bot which is a collaborate robot.

Repo Overview

Basic data

Baisc data shows how the watch, star, fork and contributors count changed in the passed week.

Watch	Star	Fork	Contributors
53	891 (↑85)	106 (↑5)	3 (↑1)

Issues & PRs

Issues & PRs show the new/closed issues/pull requests count in the passed week.

New Issues	Closed Issues	New PR	Merged PR
7	1	1	1

PR Overview

Thanks to contributions from community, Chaos Blade team merged 1 pull requests in the repository last week. They are:

• Update Dockerfile (#47)

Code Review Statistics

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@ondrej-fabry

Thanks to you all.

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support exclusive trace feature to identify testing source

Support exclusive trace feature to identify testing source

Type: feature request

In case of testing based on production environment, during collecting and analyzing every kind of logs, we need identify sources from testing by chaosblade in order to not affect actual business report.

Consider to implement with like TRACE ID.

Thank you.

limitation of network card bandwidth

*I want to simulate high io of network card on linux

maybe it can be simulate by limit the network card bandwidth on machine*

Ambiguous parameter of CPU FULLLOAD in version 0.0.3

Issue Description

Type: bug report

Describe what happened (or what feature you want)

when create cpu fulload, setting cpu-count and cpu-list parameters at the same time, only the cpu-list parameter works and the system ignores the cpu-count parameter.
创建cpu fullload故障时，如果同时设定cpu-count和cpu-list参数，只有cpu-list参数生效，系统自动无视了cpu-count参数

Describe what you expected to happen

Add extra parameter explanation or prohibit coexistence.
添加额外的参数解释，或禁止两个参数共存

How to reproduce it (as minimally and precisely as possible)

1. follow the official instrutions

Tell us your environment

Ubuntu 19.04

Anything else we need to know?

Golang, php language interface support

希望支持 php,golang语言的接口的超时，延时测试，这样会更加有实用性的。

[email protected]

Issue Description

Type: bug report or feature request

Describe what happened (or what feature you want)

Describe what you expected to happen

How to reproduce it (as minimally and precisely as possible)

Tell us your environment

Anything else we need to know?

Add cpu multi-core affinity support to blade

Issue Description

feature request

Describe what happened (or what feature you want)

It's common to use multi-core cpu. So I want the blade command has the ability to burn cpu on specific cores .

Describe what you expected to happen

add cpu cores flag to cpu like this
blade c cpu fullload -cores 0,1