timaelliott

http://hyperpolyglot.org/scripting is a similiar resource for php, perl, python and ruby only.

I use http://sugarsync.com personally which provides versioning and also lets you arbitrarily sync directories, not just the 'dropbox' one.

He already told you, they are good with the goddamn customers. They have people skills, they are good at dealing with people. Can't you understand that? What the hell is wrong with you?

I don't disagree nor do I use heroku, it's moot for myself.

I was just commenting how row-limitations were a very NoSQL way of enforcing data limits and inappropriate for an RDBMS.

I like that you guys pointed out more efficient ways to do stupid things :)

I disagree. By restricting the number of rows I think you're just going to end up with folks creating sloppy schemas specifically to avoid going over the limit.

  post.categories (varchar) = "1,51,78,84,100"

Is making otherwise innocuous changes which have a substantial impact on user behavior important to the startup culture?

No, no at all.

I fantasize about computers too. I tried to picture clusters of information as they moved through the computer. What did they look like? Ships? motorcycles? Were the circuits like freeways? I kept dreaming of a world I thought I'd never see.

Took about 45 seconds of Google+Yelp to determine it's http://www.yelp.com/biz/mirai-chicago

Nice try, overpriced US universities and for-profit degree mills.

Awesome response from Spolsky but that's not Quora. You can tell because it has users and content :)

Why do you think you'd only get paid $33k? If that's the case, that's suggesting the compensation and ownership is:

  Co-Founder: $33k Salary, 45% Equity
  Co-Founder: $33k Salary, 45% Equity
         You: $33k Salary, 10% Equity

Yes.

In 2008/2009, another engineer and myself built an ad-platform that received around 500M impressions per day, 5M clicks per day. And it wasn't just recording a tweet or publishing out to followers. We took the user input query, had to do some keyword/relevancy targeting, geofiltering, matching to advertisers and deliver back a large result set of adverts. All within 100ms.

Our platform was also apache, mod_php, memcached, mysql and rabbitmq. So definitely not the most optimal of platforms by any means. We had two colos with ~20 servers (dell r410s) at each facility.

Twitter just recently announced 400M tweets/day. I'm not trying to brag about my experiences, because looking back now we made numerous amateur mistakes, but just showing that Twitter's "scale" is a joke compared to everyday challenges at any large internet ad network.

What unit suffix is 'l'

Twitter's attitude is laughable. Yes, you have a decent amount of traffic but you're also only dealing with ~160 uncompressed bytes (plus whatever overhead) per event. The hurdles you've overcame aren't that particularly amazing nor challenging.

http://en.wikipedia.org/wiki/Travelling_salesman_problem

Yeah, just not cutting it for me. I understand the workarounds but the reality is they shouldn't be required. I should be able to right-click a directory and "Add to Dropbox"

I use droplr for quick screen-sharing, pastes, file-transfers, etc. I do not use it for anything sensitive whatsoever.

They really should have more intelligent individuals manning public-facing support channels.

Redis is a key-value store. S3 is a distributed file system.

Can we stop labeling the set of "not a rdbms" data storage mechanisms with the stupid fucking "NoSQL" moniker.

Hrm, so for a proximity search it basically has to take a combination of all potential encompassing geohashes and then do a second-pass (substantially reduced data set) using a haversine approach or something.

I suppose that might work pretty well.

So you make the r-tree 3 dimensions (lat,lng,time). PostgreSQL supports this.

I dunno I can't envision Solr being more efficient than a properly designed RDBMS for these situations. If you were integrating a full-text search I'd absolutely believe that to be the case but...

I really wish Dropbox would add the ability for arbitrary directory syncing. This single "dropbox" folder is so annoying.

Until them, I'm quite content with one of their competitors.

> For our geo-search API, we used PostgreSQL for many months, but once our Media entries were sharded, moved over to using Apache Solr. It has a simple JSON interface, so as far as our application is concerned, it’s just another API to consume.

Does anyone have particular insight to share on this? Last I checked, Solr's geospatial searching methods are rather inefficient -- haversine across all documents, bounding boxes that rely on haversine and Solr4 was looking into geohashes (better but have some serious edge-case problems where they fall apart).

Meanwhile PostgreSQL offers r-tree indexing for spatial queries and is blazing fast.

Am I missing some hidden power about Solr's geospatial lookups that make it faster/better than an r-tree implementation?

Paypal hates everyone, not just developers.

Author has either been making some ridiculously inappropriate system apps or is about to start making equally questionable web apps.

Obviously languages can serve multiple purposes but the intended uses of these have almost no overlap.

I strongly suggest you communicate your pricing as $0.008 instead of 0.8 cents. Be consistent with your units and more importantly: how people think.

http://www.codeschool.com/courses/rails-for-zombies

http://www.codeschool.com/courses/rails-for-zombies-2

http://www.codeschool.com/courses/try-ruby

This is an excellent point. I so often attribute my disdain to Java itself when, in reality, the issue is the majority of Java engineers.

Java itself can be a beautifully terse language.

Java still gives me nightmares ;(