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posted by n1 on Thursday July 28 2016, @06:30AM   Printer-friendly
from the they-forgot-about-mssql dept.

[redacted] Coward writes:

https://eng.uber.com/mysql-migration/

The early architecture of Uber consisted of a monolithic backend application written in Python that used Postgres for data persistence. Since that time, the architecture of Uber has changed significantly, to a model of microservices and new data platforms. Specifically, in many of the cases where we previously used Postgres, we now use Schemaless, a novel database sharding layer built on top of MySQL. In this article, we’ll explore some of the drawbacks we found with Postgres and explain the decision to build Schemaless and other backend services on top of MySQL.

[...] We encountered many Postgres limitations:

Inefficient architecture for writes
Inefficient data replication
Issues with table corruption
Poor replica MVCC support
Difficulty upgrading to newer releases


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  • (Score: 2) by driverless on Friday July 29 2016, @09:29AM

    by driverless (4770) on Friday July 29 2016, @09:29AM (#381461)

    The real news here is trendy Uber appers were using dinosaur tech in the first place.

    Yeah, but it's not terribly interesting stuff, I mean switching to shemales is pretty passe. Now if I got picked up by a car driven by some hot futa, that'd be another thing.

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