Mikael Ronstrom

My name is Mikael Ronstrom and I work for Hopsworks AB as Head of Data. I also assist companies working with NDB Cluster as self-employed consultant. I am a member of The Church of Jesus Christ of Latter Day Saints. I can be contacted at mikael dot ronstrom at gmail dot com for NDB consultancy services. The statements and opinions expressed on this blog are my own and do not necessarily represent those of Hopsworks AB.

Saturday, March 17, 2018

NDB Cluster and disk columns

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NDB is mainly an In-memory database. We have however also the possibility to store non-indexed columns on disk. This data uses a page cach...
Friday, March 16, 2018

Discovering rows that have been updated since last checkpoint

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One important problem that requires a solution is to decide whether a row has been updated since the last checkpoint or not. Most implem...

Partial LCPs and Read-only tables

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In MySQL Cluster 7.5 we use Complete Checkpoints. In MySQL Cluster 7.6 we implement an approach where we only checkpoint a part of the dat...

Partial LCPs and disk space

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One of the main objectives of the new Partial LCP algorithm in MySQL Cluster 7.6 is to keep up with the development of modern HW. I have...
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About Me

Mikael Ronstrom
I live in Stockholm, Sweden with my family. I am a member of the Church of Jesus Christ of Latter Day Saints. I am interested in innovative work, sports, business and many other things
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