The Log: What every software engineer should know about real-time data's unifying abstraction I joined LinkedIn about six years ago at a particularly interesting time. We were just beginning to run up against the limits of our monolithic, centralized database and needed to start the transition to a portfolio of specialized distributed systems. This has been an interesting experience: we built, dep
Introducing Morphlines: The Easy Way to Build and Integrate ETL Apps for Hadoop This post is the first in a series of blog posts about Cloudera Morphlines, a new command-based framework that simplifies data preparation for Apache Hadoop workloads. To check it out or help contribute, you can find the code here. Cloudera Morphlines is a new open source framework that reduces the time and effort nece
plyr is a set of tools for a common set of problems: you need to split up a big data structure into homogeneous pieces, apply a function to each piece and then combine all the results back together. For example, you might want to: fit the same model to subsets of a data frame quickly calculate summary statistics for each group perform group-wise transformations like scaling or standardising It’s a
3. About me » Worked at AT&T for 16 years building large scale Financial Systems: Billers, GL, Data Warehouse, Cost Modeling Systems for Network Services, Business and Consumer Business Units » Agency.com: several key clients – USSB, DIRECTV, GMACCM, Keyspan » CNET/CBSi – Director of Data Warehouse ETL systems. Have worked at CNET/CBSi since 2005 re- architecting Data Warehouse systems. 3 5. Top 2
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