Wednesday, July 30, 2014

Two Links : Note taking and outliner tool suggestion

Laverna is a note taking application that supports both Dropbox and remoteStorage

Fargo is a simple idea outliner, notepad, todo list, blogging tool, project organizer. #

Both tools are open source and free.

Tuesday, July 29, 2014

Hadoop at Pinterest

Big data plays a big role at Pinterest. With more than 30 billion Pins in the system, we’re building the most comprehensive collection of interests online. One of the challenges associated with building a personalized discovery engine is scaling our data infrastructure to traverse the interest graph to extract context and intent for each Pin.
We currently log 20 terabytes of new data each day, and have around 10 petabytes of data in S3. We use Hadoop to process this data, which enables us to put the most relevant and recent content in front of Pinners through features such as Related Pins, Guided Search, and image processing. It also powers thousands of daily metrics and allows us to put every user-facing change through rigorous experimentation and analysis.

Building a self-serve platform for Hadoop

Though Hadoop is a powerful processing and storage system, it’s not a plug and play technology. Because it doesn’t have cloud or elastic computing, or non-technical users in mind, its original design falls short as a self-serve platform. Fortunately there are many Hadoop libraries/applications and service providers that offer solutions to these limitations. Before choosing from these solutions, we mapped out our Hadoop setup requirements.
1. Isolated multitenancy
2. Elasticity
3. Multi-cluster support
4. Support for ephemeral clusters
5. Easy software package deployment
6. Shared data store
7. Access control layer 
Read all 7 items more on

Monday, July 28, 2014

Artist collections

I fetched albums and songs with youtube media links for one of the best singer of all times "Zeki Müren" and the coffee mate man "Tom Waits".
Project and data fetcher scripts are hosted on github.

Fix "Invalid SSL Certificate" bug in OS X

OS X kullananlar için genel olmayan bir problem sanırım. Detayı burada

Sertifika sorunuzu bener başka sertifika sorunları gibi silerek çözebilirsiniz.  

Keychain Access programını başlatın. View -> Show Expired Certs ve burada süresi geçmiş sertifikaları silin veya daha güvenli bir yolan oalrak sadece ‘DigiCert High” ifadesi geçen ve süresi geçmiş sertifikayı bulup silin.