At Facebook, we have unique storage scalability challenges when it comes to our data warehouse. Our warehouse stores upwards of 300 PB of Hive data, with an incoming daily rate of about 600 TB. In the last year, the warehouse has seen a 3x growth in the amount of data stored. Given this growth trajectory, storage efficiency is and will continue to be a focus for our warehouse infrastructure.
Within Facebook, anyone can look at and change the code in its source repositories. The facebook.com site has its code updated twice daily, he said, so the barrier to getting new code in the hands of users is low. Those changes can be fixes or new features.
As an example, he noted that the “Look Back” videos, which were created by Facebook for each user and reviewed all of their posts to the service, added a huge amount of data and required a lot more network bandwidth. The process of creating and serving all of those videos was the topic of a Facebook engineering blog post. In all 720 million videos were created, which required an additional 11 petabytes of storage, as well as consuming 450 Gb/second of peak network bandwidth for people viewing the videos. The Look Back feature was conceived, provisioned, and deployed in only 30 days, he said.
Fast Company shares the 10 surprising social media statistics that will make you rethink your social strategy. I wouldn’t go as far as saying that all of them are really all that surprising, but they are mostly interesting. Here they are in a nutshell:
- The fastest growing demographic on Twitter is the 55-64 year age bracket.
- 189 million of Facebook’s users are “mobile only”.
- YouTube reaches more US adults aged 18-34 than any cable network.
- Every second two new members join LinkedIn.
- Social media has overtaken port as #1 activity on the web.
- LinkedIn has a lower percentage of active users than Pinterest, Google+, Twitter and Facebook.
- 93% of marketers use social media for business.
- 25% of smartphone owners ages 18-44 say they can’t recall the last time their smartphone wasn’t next to them.
- Even though 62% of marketers blog or plan to blog in 2013, only 9% of US marketing companies employ a full-time blogger.
- 25% of Facebook users don’t bother with privacy settings.
Read the whole thing for more details, links, stats, visualization, and ideas on how to utilize this information.
Enhance Facebook And Remove Annoyances!
Social Fixer for Facebook plugs into your browser and improves the existing Facebook.com web site. You get to pick which features you want to use:
- Filter your news feed by keyword, author, and more
- Tabbed news feed organizes posts by games, apps, etc
- Hide parts of the page you don’t want to see
- Don’t show posts you’ve already read
- Auto-switch to the Most Recent news feed
- Add some style with custom themes
- And much more! See the List of Features.
Phabricator is an open source collection of web applications which makes it easier to scale software companies.
For those people who can’t afford GitHub, this should be a pretty good alternative. Developed at Facebook. All you’ll need to do is setup your git repositories.
P.S.: The best product descriptions ever (for parts of the Phabricator).