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The Elastic DBMS Blog

March 5, 2011

The weather and database elasticity

If you were designing or managing a web site, would you like to be referred to in this way?

Transit system Web site crashes put officials on defensive, webmaster in doghouse

That is exactly what happened to the officials at the MBTA (the transit system in Boston). [...]

database, elasticity, MBTA, outage | Permalink | 0 Comments

January 26, 2011

Sharding and hot-spots

A commonly adopted strategy to address the lack of scalability in relational databases is to “shard” the data.

Sharding is a horizontal partitioning strategy where data in fact tables is divided up into non-overlapping subsets, and these subsets are each stored on a different database. At its core, sharding is a natural reaction to the fact that relational database performance degrades as data volumes increase. If your database behaves worse with more data, give it less data. [...]

foursquare, outage, scalability, sharding | Permalink | 0 Comments

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