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  How to check which Ohai plugin hangs in chef client run

Ohai plugins are very important components in chef client which aims to provide resource management automation on a server. The data discovered by Ohai plugins are describing the current state of the server and they will be used to maintain the server in a desired state. Each Ohai plugin discovers a specific pierce of information about the server such as cpu, memory, middleware etc. However, there are rare occasions(well I am a bit optimistic here) someone may find that the chef client...

   HOW TO,CHEF-CLIENT,OHAI,UPTIME,HANG     2017-12-24 22:09:59

  Business Opportunities for Entrepreneurs – Check them Out Here

We are in the digital era, and today, starting a business seems to be easier than ever before. With a smart device and a reliable internet connection, you are almost halfway to becoming a business owner. The main challenge, however, comes in identifying a good business opportunity to venture in, especially considering the high competition in nearly all sectors. Today, nearly everything is done online, and you can take advantage of this to sell your products or services. The best part about onlin...

   BUSINESS     2020-05-13 11:25:28

  Networking Terminologies

Portmaps sudo apt-get install -y portmap Portmap is a part of ONC RPC (Open Network Computing Remote Procedure) collection of software for implementing remote procedure calls between Computer Programs. It is widely used by NFS (Network File System) and NIS. Portmap is a server that converts RPC program number to DARPA protocol port number. It must be used in order to make RPC calls. Network Infomation Service (NIS) sudo apt-get install -y nis NIS is a client server directory service provi...

   Linux,Network programming,Network file system     2012-02-16 06:22:30

  DESIGNERS NEED ENGINEERS

Like so many of you, I’ve been indulging in the amateur analyses all over the web about why Steve Jobs, p.b.o.h., was so great. The recurring message is pithily summarized by Mathew Ingram: “Technology is the least important thing about Apple products”.Bullshit. The reason why Apple manages to build such magnificent products is because design and usability drive the engineering, yet the technology behind their products is by no means trivial. Apple cares a ...

   Engineer,Designer,Relationship     2011-10-24 11:54:53

  Be careful about printing error as string in GoLang

In GoLang, we can format and produce string using fmt.Printf(), just like C, GoLang also supports format verbs like %s, %d which can be placeholder for different types of values. But please pay attention when printing error as string so that you will not fall into some trap. Let's first take an example code snippet and see what trap we are talking about. package main import "fmt" type A string func (a A) Error() string { return fmt.Sprintf("%s is an error", a) } func main() { a := A("hello...

   STACKOVERFLOW,GOLANG,FMT     2019-01-23 09:17:15

  Test-Driven Development? Give me a break...

Update: At the bottom of this post, I've linked to two large and quite different discussions of this post, both of which are worth reading... Update 2: If the contents of this post make you angry, okay. It was written somewhat brashly. But, if the title alone makes you angry, and you decide this is an article about "Why Testing Code Sucks" without having read it, you've missed the point. Or I explained it badly :-)Some things programmers say can be massive red flags. When I h...

   Test driven,Application design,tool     2011-10-17 10:19:16

  The Disruptor In The Valley

Justin Kan and Emmett Shear watched their first startup, an online calendar called Kiko, implode when Google decided to do the same thing in 2006. They sold Kiko's scraps on eBay for $258,000 and wondered what to do with their lives. So the pair did the only thing they could think of: They went to see Paul Graham at his house in Cambridge, Mass., near Harvard Square. Graham sat them down and helped bang out a plan to create Justin.tv, now the Web's biggest portal for live video, with 31 million ...

   Paul Graham,Creative,Programmer,Investme     2011-08-28 04:13:43

  How I Became a Programmer

I posted a very brief response to a post on HackerNews yesterday challenging the notion that 8 weeks of guided tutelage on Ruby on Rails is not going to produce someone who you might consider a "junior RoR developer." It did not garner many upvotes so I figured that like most conversation on the Internet it faded into the general ambient chatter. Imagine my surprise when I woke up to couple handfuls' worth of emails from around the world asking me what I did, how I did it, an...

   Programmer,Advice,Method,Study     2011-11-24 09:14:50

  A mini post on GoLang context

In a GoLang web server, every request coming in will be handled by a goroutine. In the request handler, the logic may also need to create new goroutine to handle other tasks like RPC call. When the request is processed and response is returned, these goroutines created need to be exited so that no goroutine leak should happen. package main import ( "fmt" "log" "net/http" ) func main() { http.HandleFunc("/echo", func(w http.ResponseWriter, r *http.Request) { fmt.Println(&r) w.Write(...

   CONTEXT,GOLANG     2019-12-14 06:21:02

  GitHub launches a separate training page

Code hosting community Github has much proud data: 55 employees, Andreessen Horowitz promised a $100 million investment, $750 million valuation, a place developers stay longest since its launch in 2008 ... Github announced the official launch of a separate teaching page, to teach developers collaborative programming through various forms. Github announces the detail about the training program on its official blog, the entire training project has two modes : free and paid. The content of their t...

   GitHub,Training,Open source     2012-10-07 05:45:47

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