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Daniel Abadi
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Darnell-Kanal Professor of Computer Science at UMD College Park
Darnell-Kanal Professor of Computer Science at UMD College Park

817 followers
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Just published a new blog post on DBMS Musings where I analyze the Apache Arrow main memory data format standard and benchmark the associated C++ codebase, This post follows up on my popular previous post on Arrow that compared the requirements for disk vs. main memory data format standards.
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Given that C-Store was my PhD thesis a decade ago, I'm very happy to see the proliferation of column-oriented data formats in the open source Apache ecosystem. But once we have Apache Parquet and Apache ORC, do we really need a third project in the recently introduced Apache Arrow? I just published a blog post that analyzes this question.
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Finally found a good example of a PA/EC system for my PACELC theorem. The example is Hazelcast, which is an open source in-memory data grid. (In a PA/EC system, when there is a partition it chooses availability, but at all other times it chooses consistency). Just wrote a long blog post about it ...
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Spanner vs. Calvin --- it's time for a technical comparison ...
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First blog post on my private blog for a while. This post discusses the FIT three-way tradeoff for distributed database system design. You can have two out of the three of: fairness, isolation, and throughput.
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Five generations of database researchers (the guy to the left was the PhD advisor of the guy to the right). Database researchers are clearly getting shorter over time :)
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