• GitHub Package Registry will support Swift packages

      On May 10, we announced the limited beta of GitHub Package Registry, a package management service that makes it easy to publish public or private packages next to your source code. It currently supports familiar package management tools: JavaScript (npm), Java (Maven), Ruby (RubyGems), .NET (NuGet), and Docker images, with more to come.

      Today we’re excited to announce that we’ll be adding support for Swift packages to GitHub Package Registry. Swift packages make it easy to share your libraries and source code across your projects and with the Swift community.

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    • VShard — horizontal scaling in Tarantool



        Hi, my name is Vladislav, and I am a member of the Tarantool development team. Tarantool is a DBMS and an application server all in one. Today I am going to tell the story of how we implemented horizontal scaling in Tarantool by means of the VShard module.

        Some basic knowledge first.

        There are two types of scaling: horizontal and vertical. And there are two types of horizontal scaling: replication and sharding. Replication ensures computational scaling whereas sharding is used for data scaling.

        Sharding is also subdivided into two types: range-based sharding and hash-based sharding.

        Range-based sharding implies that some shard key is computed for each cluster record. The shard keys are projected onto a straight line that is separated into ranges and allocated to different physical nodes.

        Hash-based sharding is less complicated: a hash function is calculated for each record in a cluster; records with the same hash function are allocated to the same physical node.

        I will focus on horizontal scaling using hash-based sharding.
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