Feeds

Twitter to open source MySQL-to-Hadoop tool

Data Crane

Business security measures using SSL

Hadoop Summit Twitter intends to open source an additional piece of the Hadoop-happy infrastructure it uses for internal data analysis. Known as Crane, this is a tool for moving data from MySQL into Hadoop, the open source data-crunching platform based on Google's proprietary infrastructure.

Twitter uses Hadoop for ad hoc analysis of data collected from its famous microblogging service, but the platform also crunches data for use by live tools on the site, including Twitter's name-search function.

Speaking today at the Yahoo!-sponsored Hadoop Summit in Santa Clara, California, Twitter analytics man Kevin Wiel explained that the company handles Hadoop data input in essentially two ways. It does log collection with the open source Scribe developed at Facebook, logging seven terabytes of data into the Hadoop File System (HDFS) each day, and it handles tabular data with Crane.

Most of Twitter's tabular data is stored in MySQL, though "a little" is stored in the Cassandra open source distributed database and Twitter's open source "social graph" data store, Flock. "Other than that," Wiel said. "Everything you do on Twitter ends up in a MySQL table somewhere."

Crane was developed to move data from MySQL to the HDFS or to the Hadoop-friendly distributed database known as HBase, but also to other MySQL databases. "We needed to have a flexible data-moving tool, so we built Crane, which is a configuration-driven ETL [extract, transform, and load] tool," Wiel says.

The tool moves data not only into MySQL, HDFS, and HBase, but also into Flock, Google Analytics, and Facebook Insights.

Like Yahoo! — and unlike Facebook — Twitter does its Hadoop programming in Pig. Developed by Yahoo!, the open source Pig is a lower-level language than the Facebook-developed Hive. But it operates at a significantly higher level than raw Hadoop MapReduce code.

According to Wiel, Pig requires five per cent of the coding and five percent of the code compared to Hadoop MapReduce, and it comes within 30 per cent of the execution time.

Twitter employees access Hadoop via dashboard known as BirdBrain, much like Facebookers use a Hive GUI known as HiPal.

A more general Hadoop interface was just open sourced by all-star startup Cloudera. Formerly known as the Cloudera Desktop, HUE — short for Hadoop User Interface — provides a web-based graphical user interface for creating and submitting jobs on a Hadoop cluster, monitoring the cluster's health, and browsing stored data. ®

New hybrid storage solutions

More from The Register

next story
'Windows 9' LEAK: Microsoft's playing catchup with Linux
Multiple desktops and live tiles in restored Start button star in new vids
Not appy with your Chromebook? Well now it can run Android apps
Google offers beta of tricky OS-inside-OS tech
New 'Cosmos' browser surfs the net by TXT alone
No data plan? No WiFi? No worries ... except sluggish download speed
iOS 8 release: WebGL now runs everywhere. Hurrah for 3D graphics!
HTML 5's pretty neat ... when your browser supports it
Greater dev access to iOS 8 will put us AT RISK from HACKERS
Knocking holes in Apple's walled garden could backfire, says securo-chap
NHS grows a NoSQL backbone and rips out its Oracle Spine
Open source? In the government? Ha ha! What, wait ...?
Google extends app refund window to two hours
You now have 120 minutes to finish that game instead of 15
Intel: Hey, enterprises, drop everything and DO HADOOP
Big Data analytics projected to run on more servers than any other app
SUSE Linux owner Attachmate gobbled by Micro Focus for $2.3bn
Merger will lead to mainframe and COBOL powerhouse
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.