We found and fixed a rare race condition in our session handling

• Puma

  40 7,583 8.7 Ruby

  A Ruby/Rack web server built for parallelism

  

Each server does share a "proto env" object, but it is duplicated for each Client:

https://github.com/puma/puma/blob/0cc3f7d71d1550dfa8f545ece8...

and Client objects are not reused:

https://github.com/puma/puma/blob/0cc3f7d71d1550dfa8f545ece8...

• Unicorn

  3 1,415 6.9 Ruby

  Unofficial Unicorn Mirror. (by defunkt)

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• D2L.CodeStyle

  1 10 7.9 C#

  Annotations and analysis tools for D2L C# code style

  

At D2L we have a large C# code base which gets deployed in a few different subsets, but is largely a monolithic fleet of web servers.

To prevent these kind of problems we have a few approaches, but the main way is to prevent shared mutable state. To do this we have a custom C# code analyzer (source here: https://github.com/Brightspace/D2L.CodeStyle/tree/master/src... , but it's not documented for external consumption at this point.) It goes like this:

  [Immutable]

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