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  Use of log in programming

Usually, The purposes of log are for troubleshooting and displaying program running status. Good log will help us locate the error easier. Many programmers think log in programs is very simple, but it's not an easy task to write log codes to efficiently locate the error. Here we discuss about program log in three aspects: Where to log What to log Log styles to be avoided Where to log 1. When calling external functions When your program is calling some external functions which are not written b...

   Log, Programming,Debug     2012-11-28 11:42:23

  Transparency in Cloud Services

37signals recently launched public “Uptime Reports” for their applications (announcement). The reaction on Hacker News was rather tepid, but I think it’s a positive development, and I applaud 37signals for stepping forward. Reliability of cloud applications is a real concern, and there’s not nearly enough hard data out there. Not all products are equally reliable; even within 37signals, the new reports show a 3:1 variation in downtime across apps. That said, ...

   Cloud,Transapency,37signals,Announcement     2012-01-10 07:24:02

  When a CA becomes untrustable

Information security has become a vital part of people's life, especially for those people who spend much time online. Tons of data are being transmitted over the internet every second. These data include user ids, passwords, credit card information etc and some of them are sensitive information which needs secure way to transmit. Hence different protocols have been developed including SSL/TLS to encrypt data transmitted over the internet. The core of these security protocols is the certifi...

   APPLE,SECURITY,GOOGLE,MOZILLA,NEWS,WOSIGN     2016-10-01 23:03:44

  Web Symbols typeface

There are those points in every interactive designer’s career when he becomes fed up with producing the same set of graphics all over again for every website he designs. It could be the social network icons, gallery arrows or any number of his «signature» butterflies for the footer of each of his projects. Similar for interactive developers that have to slice the same GIFs and PNGs each time art-director asks them to.U...

   Web,Type face,Interactive mode,Design icon     2011-11-19 02:08:47

  Mock Solutions for GoLang Unit Test

In Go development, Unit Test is inevitable. And it is essential to use Mock when writing Unit Tests. Mock can help test isolate the business logic it depends on, enabling it to compile, link, and run independently. Mock needs Stub. Stub function replaces the real business logic function, returns the required result, and assists the test. I involved the related test code for Controllers while writing Kubernetes Operator recently, and there would be mocks for GRPC and HT...

   UNIT TEST,TESTIFY,GOSTUB,GOMOCK     2020-10-31 21:59:15

  Set up Superset on ubuntu 16.04 LTS

Apache Superset (incubating) is a modern, enterprise-ready business intelligence web application. Compared with business-focused BI tool like Tableau, superset is more technology-navy. It supports more types of visualization and able to work in distributed manner to boost the query performance. Most importantly, it is free of charge! An example dashboard: Let’s go and set it up. Create a virtualenv Assume Anaconda is installed for python management. # create a virtualenv with python 3.6 co...

   TUTORIAL,UBUNTU,SUPERSET     2019-10-19 21:34:55

  Why I Will Never Feel Threatened by Programmers in India

I got a call from a friend of a friend the other night. It was a fellow with whom I’d talked 11 months ago about a project he and his partner were looking to start. We established then that I wasn’t the guy for him, that I was likely too expensive for their big-dreams, small-means budget. Fast forward to present day: their project is still not launched, it’s still not right. They’ve paid for something between 600-700 hours of development with a firm in India, an...

   Indian programmer,Outsourcing,Poor quality,Low cost     2011-12-05 13:00:04

  Why I Will Never Feel Threatened by Programmers in India

I got a call from a friend of a friend the other night. It was a fellow with whom I’d talked 11 months ago about a project he and his partner were looking to start. We established then that I wasn’t the guy for him, that I was likely too expensive for their big-dreams, small-means budget. Fast forward to present day: their project is still not launched, it’s still not right. They’ve paid for something between 600-700 hours of development with a firm in India, an...

   Indian programmer,Outsourcing,Poor quality,Low cost     2011-12-05 13:00:13

  Why I Will Never Feel Threatened by Programmers in India

I got a call from a friend of a friend the other night. It was a fellow with whom I’d talked 11 months ago about a project he and his partner were looking to start. We established then that I wasn’t the guy for him, that I was likely too expensive for their big-dreams, small-means budget. Fast forward to present day: their project is still not launched, it’s still not right. They’ve paid for something between 600-700 hours of development with a firm in India, an...

   Indian programmer,Outsourcing,Poor quality,Low cost     2011-12-05 12:58:26

  What is Hystrix and How does Hystrix work

Background In distributed systems, there is one effect where the unavailability of one service or some services will lead to the service unavailability of the whole system, this is called service avalanche effect. A common way to prevent service avalanche is do manual service fallback, in fact Hystrix also provides another option beside this. Definition of Service Avalanche Effect Service avalanche effect is a kind of effect where the service provider fails to provide service which causes t...

   AVALANCHE EFFECT,HYSTRIX,DISTRIBUTED SYSTEM     2019-02-04 06:00:38

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