comcast | Simulating shitty network connections so you can build | Networking library

by tylertreat Go Version: v1.0.1 License: Apache-2.0

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kandi X-RAY | comcast Summary

comcast is a Go library typically used in Networking applications. comcast has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Testing distributed systems under hard failures like network partitions and instance termination is critical, but it's also important we test them under less catastrophic conditions because this is what they most often experience. Comcast is a tool designed to simulate common network problems like latency, bandwidth restrictions, and dropped/reordered/corrupted packets. It works by wrapping up some system tools in a portable(ish) way. On BSD-derived systems such as OSX, we use tools like ipfw and pfctl to inject failure. On Linux, we use iptables and tc. Comcast is merely a thin wrapper around these controls. Windows support may be possible with wipfw or even the native network stack, but this has not yet been implemented in Comcast and may be at a later date.

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Support

comcast has a medium active ecosystem.

It has 9906 star(s) with 383 fork(s). There are 159 watchers for this library.

It had no major release in the last 12 months.

There are 22 open issues and 21 have been closed. On average issues are closed in 133 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of comcast is v1.0.1

Quality

comcast has 0 bugs and 0 code smells.

Security

comcast has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

comcast code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

comcast is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

comcast releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

It has 1100 lines of code, 65 functions and 7 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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comcast Key Features

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Community Discussions

Trending Discussions on comcast

Merge different length dfs and preserve all values from "master" df

How to do MAX COUNT so Query returns 1 Result SQL

Regex is failing for few URLs

Create binary categorical variables in pandas - combine 4 categories into 2

The 'compilation' argument must be an instance of Compilation

Windowing is not triggered when we deployed the Flink application into Kinesis Data Analytics

Expand Col values based on names/email SQL

How to order a group of rows by created_at?

PowerShell Invoke-WebRequest gets 403 Forbidden, but then works ok, for awhile

Need CSS help to stop scrolling in a with overflow

QUESTION

Merge different length dfs and preserve all values from "master" df

Asked 2022-Jan-25 at 23:03

Working on what I think should be a simple merge but I can't find quite the right solution.

I have two dfs of Fortune 500 companies. df1 is 2 columns (Company and CIK), 117 rows long. df2 is 2 columns (Rank, and Company) and 225 rows long. The company order is different between the dfs.

I want a dataframe that matches the company names (even if the company names aren't spelled 100% the same), preserves the order of df2, and fills in the CIK values from df1 to df2, and fills in Na in the remaining values (108 will be NA).

This merge only gives 52 values (probably the ones that are exactly matching).

...

ANSWER

Answered 2022-Jan-25 at 20:27

What you want to do is LEFT JOIN. I made my own sample data considering the attached images.

You can refer this code and understand how it works. If all CIK values are NaN in your result, it might be because 'Company' values are not correctly matched between df1 and df2 by some reasons, such as empty spaces in the values.

Source https://stackoverflow.com/questions/70841123

QUESTION

How to do MAX COUNT so Query returns 1 Result SQL

Asked 2021-Nov-15 at 21:45

I have the following query:

...

ANSWER

Answered 2021-Nov-15 at 21:03

Use Dense_Rank() windowed function to display tied rank as well.

Source https://stackoverflow.com/questions/69980718

QUESTION

Regex is failing for few URLs

Asked 2021-Sep-21 at 06:42

I am having a Regex as /url\s*$(?!['("]?(?:data):)['"]?([^')"$]*)['"]?([\)]|$)/gi where we are using it to parse style tag to get URL(ex.backgroundImage). It fails for URL such as

1] background-image: url(\2f content\2f dam\2f dx\2fus\2f en\2f error-pages\2f 404-1440x612_edge2.jpg\2fjcr%3acontent\2frenditions\2f cq5dam.tablet_1400.1400.595.jpg); background-position: 50% 50%;

should be => url(\2f content\2f dam\2f dx\2fus\2f en\2f error-pages\2f 404-1440x612_edge2.jpg\2fjcr%3acontent\2frenditions\2f cq5dam.tablet_1400.1400.595.jpg)

2] background-image: url("https://www.investopedia.com/thmb/m3EwtlYfbUhlr9e34AofFj9wok8=/1300x0/filters:contrast(10):brightness(-10):no_upscale()/TopTerms-2bdc464d466944deb41fc07379407600.jpeg")

should be => url("https://www.investopedia.com/thmb/m3EwtlYfbUhlr9e34AofFj9wok8=/1300x0/filters:contrast(10):brightness(-10):no_upscale()/TopTerms-2bdc464d466944deb41fc07379407600.jpeg")

It fails at contrast(10): as it consider contrast(10) closing bracket as end of URL.

3] background-image:url('https://cdn.comcast.com/-/media/Images/www_xfinity_com/TV/X1/09072021 Refresh/10X1HeroDesktop.png?rev=d04c61c0-3658-457d-8260-74ef6694c0ed&mw=1280&mh=600&hash=6A1C4FEC8499EE38864BA31D24B9E42220D8C7EB')" background-size: cover;

should be => url('https://cdn.comcast.com/-/media/Images/www_xfinity_com/TV/X1/09072021 Refresh/10X1HeroDesktop.png?rev=d04c61c0-3658-457d-8260-74ef6694c0ed&mw=1280&mh=600&hash=6A1C4FEC8499EE38864BA31D24B9E42220D8C7EB')

4] style="position:absolute; background:transparent url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=) repeat 0 0"

should be => url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=)

...

ANSWER

Answered 2021-Sep-21 at 06:42

You could use an alternation | to get the different formats.

Source https://stackoverflow.com/questions/69248967

QUESTION

Create binary categorical variables in pandas - combine 4 categories into 2

Asked 2021-Jun-30 at 06:36

I have the following pandas dataframe, where the column 'Status' consists of 4 categorical values - 'Open', 'Closed', 'Solved' and 'Pending'.

...

ANSWER

Answered 2021-Jun-30 at 06:13

Here is the underlying principle:

Source https://stackoverflow.com/questions/68189186

QUESTION

The 'compilation' argument must be an instance of Compilation

Asked 2021-Jun-02 at 17:41

Been getting this error when running 'ng build' on my Angular 12.0.2 project

...

ANSWER

Answered 2021-Jun-02 at 17:41

We figured it out. As you can see in our packages.json, we have a dependency on webpack. It seems angular-devkit/build-angular does as well. We believe this created the known issue of multiple webpacks colliding and causing issues. Removing our dependency on webpack fixed the issue.

Source https://stackoverflow.com/questions/67727180

QUESTION

Windowing is not triggered when we deployed the Flink application into Kinesis Data Analytics

Asked 2021-May-19 at 08:45

We have an Apache Flink POC application which works fine locally but after we deploy into Kinesis Data Analytics (KDA) it does not emit records into the sink.

Used technologies Local

Source: Kafka 2.7
- 1 broker
- 1 topic with partition of 1 and replication factor 1
Processing: Flink 1.12.1
Sink: Managed ElasticSearch Service 7.9.1 (the same instance as in case of AWS)

AWS

Source: Amazon MSK Kafka 2.8
- 3 brokers (but we are connecting to one)
- 1 topic with partition of 1, replication factor 3
Processing: Amazon KDA Flink 1.11.1
- Parallelism: 2
- Parallelism per KPU: 2
Sink: Managed ElasticSearch Service 7.9.1

Application logic

The FlinkKafkaConsumer reads messages in json format from the topic
The jsons are mapped to domain objects, called Telemetry

...

ANSWER

Answered 2021-May-18 at 17:24

According the comments and more information You have provided, it seems that the issue is the fact that two Flink consumers can't consume from the same partition. So, in Your case only one parallel instance of the operator will consume from kafka partition and the other one will be idle.

In general Flink operator will select MIN([all_downstream_parallel_watermarks]), so In Your case one Kafka Consumer will produce normal Watermarks and the other will never produce anything (flink assumes Long.Min in that case), so Flink will select the lower one which is Long.Min. So, window will never be fired, because while the data is flowing one of the watermarks is never generated. The good practice is to use the same paralellism as the number of Kafka partitions when working with Kafka.

Source https://stackoverflow.com/questions/67535754

QUESTION

Expand Col values based on names/email SQL

Asked 2021-May-18 at 14:45

I want to explode my table based on their 'KEY's and assort their names and emails separately into individual cols.

In Python such scenarios are dealt easily(like we use explode in pandas). since I've just started with SQL I'm finding it difficult to get my feet wet. My googling didn't help me even next to were i want, hence reaching out to the community as a my last resort for some guidance. In essence i'm trying to expand my table with my KEY as the index and the names and emails exploded across multiple cols.

my table:

KEY FIRST MIDDLE LAST EMAIL FLAG_GENDER FLAG_DESCENT 1 ROBIN A SIMPSON ROBIN@PROTON.COM M - 1 NICOLE P SIMPOSON NIC@YAHOO.COM F NA 1 SANDY LAYNE F NA 1 BRUCE NILLS BRUCENILLS@ M NA 1 ERIC WOOTEN ERICW@YAHOO.COM M NA 5 JUDY THAMES JUDYTHAMES@YAHOO.COM F NA 5 JUDY THAMES JUDY@GMAIL.COM F NA A290 RENN J JOHNSON RENNY@COMCAST.COM M C K890 JAMES RODRIGUES NA M L 189 BECKIE KATE MOORS BECKIE@GMAIL.COM F - 189 BECKIE MOORSB@YAHOO.COM F - 189 MOORS BMOORS@GMAIL.COM F - 189 BECKIE KATE MOORS BECKIE@GMAIL.COM F -

output table:

KEY FULL NAME_1 FULL NAME_2 FULL NAME_3 FULL NAME_4 FULL NAME_5 EMAIL_1 EMAIL_2 EMAIL_3 EMAIL_4 EMAIL_5 1 ROBIN A SIMPSON NICOLE P SIMPOSON SANDY LAYNE BRUCE NILLS ERIC WOOTEN ROBIN@PROTON.COM NIC@YAHOO.COM NA BRUCENILLS@ ERICW@YAHOO.COM 5 JUDY THAMES JUDY THAMES JUDYTHAMES@YAHOO.COM JUDY@GMAIL.COM A290 RENN J JOHNSON RENNY@COMCAST.COM K890 JAMES RODRIGUES NA 189 BECKIE KATE MOORS BECKIE MOORS MOORS BECKIE KATE MOORS BECKIE@GMAIL.COM MOORSB@YAHOO.COM BMOORS@GMAIL.COM BECKIE@GMAIL.COM ...

ANSWER

Answered 2021-May-18 at 14:45

As noted in my comments, I strongly suggest that this is a duplicate of Group by column and multiple Rows into One Row multiple columns however, to demonstrate how you would do it for 2 columns, instead of 1:

Source https://stackoverflow.com/questions/67587806

QUESTION

How to order a group of rows by created_at?

Asked 2021-Mar-26 at 22:40

My visits table looks like this:

id name isp created_at 1 Jack Comcast 2021-03-13 01:00:00 2 Jack Comcast 2021-03-13 01:01:00 3 Tom Comcast 2021-03-13 01:02:00 4 Jill Amazon 2021-03-13 01:03:00 5 Jack Comcast 2021-03-13 01:50:00 6 Jill Amazon 2021-03-13 01:06:00 7 Jack Comcast 2021-03-14 01:00:00

I want to group the 'isp' together and then order the group based on the latest created_at of the first row in each group and within in group, order by 'created_at' and 'name'. The resulting table should look like

id name isp created_at 1 Jack Comcast 2021-03-13 01:00:00 2 Jack Comcast 2021-03-13 01:01:00 5 Jack Comcast 2021-03-13 01:50:00 7 Jack Comcast 2021-03-14 01:00:00 3 Tom Comcast 2021-03-13 01:02:00 4 Jill Amazon 2021-03-13 01:03:00 6 Jill Amazon 2021-03-13 01:06:00

I have the following code to order by the 'isp' but am stuck on how to order the group of isp based on the first 'created_at'.

...

ANSWER

Answered 2021-Mar-26 at 21:01

You can use window functions:

Source https://stackoverflow.com/questions/66824199

QUESTION

PowerShell Invoke-WebRequest gets 403 Forbidden, but then works ok, for awhile

Asked 2021-Mar-18 at 07:48

PowerShell 5.1 on Win10 Pro, from home, on Comcast.
I want to get my external IP.
My first request gets 403 Forbidden.
But then i just repeat the request (using the keyboard UpArrow), and it works - i get my IP as expected. But if i pause for awhile (several minutes) i'll get the 403 again, and then it works

...

ANSWER

Answered 2021-Mar-18 at 07:48

The default method of Invoke-WebRequest is 'Get'. Specify the method as 'Post' and the error is not returned.

Source https://stackoverflow.com/questions/66683752

QUESTION

Need CSS help to stop scrolling in a with overflow

Asked 2021-Mar-06 at 21:44

So, I have a small issue which is mainly due to tiredness and spending all day on this. I know it it is a simple thing, its just eluding me.

I am building an html email slider for work and i am modifying another system to create this. I have positioned the slider arrows below the image and set the overflow to visible. This has made the td scroll to accommodate the overflow. I need to change something so that it doesnt scroll and is the full height. I am at a loss. I just need another set of fresh eyes to help me out ...It is not easy to make a slider for email and get it to work on multiple devices as you all know.

codepen here: https://codepen.io/ryangliozzo/pen/VwmGzbe

Thanks everyone,

Ryan.

...

ANSWER

Answered 2021-Mar-06 at 21:21

It seems on line 219 that overflow:hidden could be the culprit.
A change to overflow:clip seems to fix your described issue.

Source https://stackoverflow.com/questions/66510040

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