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People, Authority and Profits..

A couple of weekends ago, I had to buy some tablets for work. So I stopped by the trusty neighborhood microcenter and told the salesguy that I wanted to buy 3 iPads. The guy says “hmm.. I don’t know if I can do that, you see, we restrict each household to one iPad because there is so much demand”. I think.. fair enough and go on to tell him that I actually need to purchase a total of 9 tablets. 3 iPads and 6 Android tablets. Assuming that he will understand I am not your typical household, but a business. He goes into the “back room” to confirm with his supervisor and comes back saying.. a policy is a policy, we cannot do it. At this point, I am a bit ticked off.. I mean, don’t these guys want to actually sell these devices. I am on my way out to find another store and see a “manager” walking the aisles. I stop him and explain the situation, assuming he would be smarter and have the authority to “break” policy. Again no luck.. the guy kept repeating,”it is our policy to restrict each household to one iPad!!!”. Totally missing the point that I want to buy 6 more Android tablets too!!

I go to the competition across the road, TigerDirect and tell the first sales person that I need to buy a total of 9 tablets, 3 of them being iPads. The guy says “hmm.. we restrict iPads to one per household, but let me check with my manager”. The manager stops by assesses, the situation and “breaks” the policy and approves the purchase. I walk out with 9 tablets under my arms and making TigerDirect a couple hundred dollars richer (hopefully!! 🙂 )

Same policy in two different stores, but the fact that the manager in TigerDirect was able to asses the situation and go against the policy was a win-win situation for both the customer and his company.

Morale of the story? Hire good people and give them the authority to make decisions. Good things will follow :).

Visit the Indian Railway's official site for dating advice

I was reading this post (http://mindprince.blogspot.com/2011/10/state-of-railway-e-ticketing-in-india.html) by Rohit Agarwal and happened to check out the official site for the Indian Railway (which is a public enterprise).

And what do I see there? Ads for dating services and Penny Auctions!! Last I checked, the Indian Railways was one of the most profitable ventures in the pubic enterprises in India. What gives? Here’s a screenshot for proof 🙂

HOW TO : Check web services using curl

Quick note for myself to check web services using curl ([L/U]nix utility to play with http(s) traffic)

[code] curl https://URL_TO_TEST –insecure –trace-ascii debug.txt [/code]

Comments on options :
–insecure is used if you are testing web services served over SSL using self signed certs
–trace-ascii dumps all traffic between the client (curl in this case) and the server in human readable format

Help a brother out..

Amit Gupta, a fellow geek and photographer, has been diagnosed with Acute Lukemia.. He needs a matching bone marrow to survive the odds. How can you help? Two (well three) simple steps

Not a lot of things in life are free and satisfying.. This is one of them.

Interesting (infrastructure) tidbits about Groupon

I am attending the Camp DevOps conference in Chicago over the weekend and one of the speakers was Zack Steinkamp. Zack manages the operations tools group in addition to information security at Groupon. He spoke about a custom configuration management tool called “roller” (http://steinkamp.us/campdevops.pdf) that is used at Groupon. He said the tool is scheduled to be open sourced soon. roller is very similar to puppet, chef, bcfg2 etc. I am not sure if we need yet another configuration management tool, but Zack made a good point for why there is a need for a simpler and secure configuration management tool.

Anyways.. this post is not about roller, but rather about some tidbits that Zack shared about Groupon’s infrastructure in the talk

  • Groupon started out with ~100 servers
    • The operations function was outsourced to a third party
    • No automation in place.. all servers were “handcrafted”
  • Currently running ~1000 servers in 6 locations (globally)
    • Building their own data center
  • Running 4 different Linux distros in prod
  • Currently using Amazon and another cloud provider
  • Not a hugh believer in public cloud for future expansion
    • Zack spoke about how the lack of consistency in the IO/CPU performance is an issue on the public clouds
  • Does not heavily use virtualization in production
  • Uses Nagios for monitoring
  • SW Architecture
    • Started out as a “wordpress” blog
    • Then migrated into a Rails App
    • Currently the Rails App is huge
    • MySQL is the DB