DBMS Musings

Tuesday, October 31, 2017

Apache Arrow vs. Parquet and ORC: Do we really need a third Apache project for columnar data representation?

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Apache Parquet and Apache ORC have become a popular file formats for storing data in the Hadoop ecosystem. Their primary value proposition ...
17 comments:
Sunday, October 8, 2017

Hazelcast and the Mythical PA/EC System

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(Editor’s note: I was unaware that Kyle Kingsbury was doing a linearizability analysis of Hazelcast when I was writing this post. Kyle’s a...
2 comments:
Thursday, April 6, 2017

Distributed consistency at scale: Spanner vs. Calvin

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Introduction In 2012, two research papers were published that described the design of geographically replicated, consistent, ACID complia...
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Wednesday, October 28, 2015

Why MongoDB, Cassandra, HBase, DynamoDB, and Riak will only let you perform transactions on a single data item

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(This post is co-authored by Daniel Abadi and Jose Faleiro and cross-posted on Jose's blog ) NoSQL systems such as MongoDB, Cassand...
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About Me

Daniel Abadi
Daniel Abadi is the Darnell-Kanal Professor of Computer Science at University of Maryland, College Park. He is best-known for the development of the storage and query execution engines of the C-Store (column-oriented database) prototype, which was commercialized by Vertica and eventually acquired by Hewlett-Packard in 2011, for his HadoopDB research on fault tolerant scalable analytical database systems which was commercialized by Hadapt and acquired by Teradata in 2014, and deterministic, scalable, transactional, distributed systems such as Calvin which is currently being commercialized by Fauna. Abadi has been a recipient of a Churchill Scholarship, a NSF CAREER Award, a Sloan Research Fellowship, a VLDB Best Paper Award, two VLDB 10 year Best Paper Awards, the 2008 SIGMOD Jim Gray Doctoral Dissertation Award, the 2013-2014 Yale Provost's Teaching Prize, and the 2013 VLDB Early Career Researcher Award. He received his PhD in 2008 from MIT. He blogs at DBMS Musings and tweets at @daniel_abadi.
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