Microsoft to Develop Golua

Golua is Lua 5.3 engine, implemented in Go programming language
19 November 2018   1024

Microsoft has released to the public golua engine designed to execute scripts in the Lua language. The development is distributed under the open MIT license and is available in the GitHub repository. The project is implemented in the language of Go.

There are already several implementations of Lua VM in Go, for example, DCLua, GoLua or glua. However, the developers state that they needed support for the syntax of version 5.3, and none of the existing tools could offer this either now or in the near future. In addition, simple and clear software interfaces were required to integrate the engine with Go.

The new development is based on the architecture, focused on convenient debugging, search and error handling. Although the creators of golua recognize that they have not yet managed to achieve full compliance with specification 5.3, they intend to further develop the project.

Lua is an open source scripting programming language interpreter. It is distinguished by simple integration into other languages ​​and the possibility of implementing a large number of software entities with a minimum of syntax tools.

The official Lua interpreter is written in C. Go was developed by Google as a replacement for C and C ++ and has the potential to provide greater speed. The company maintains and regularly updates its development; at the end of the summer of 2018, Go 1.11 was released.

CockroachDB to Change License Type

The only restriction in new bundle of licenses is the ban on selling commercial versions of CockroachDB, made in the form of cloud services
05 June 2019   376

The developers of the distributed DBMS CockroachDB have announced the migration of the project source code into a bundle from the Business Source License (BSL) and Cockroach Community License (CCL), which is not free due to the discrimination of certain categories of users. The BSL license was proposed by MySQL co-founders three years ago as an alternative to the Open Core model. The essence of BSL is that the extended functionality code is initially available for making changes, but for a certain period of time it can be used for free only if the additional conditions are met that require a commercial license to be circumvented.

The new license allows the use of CockroachDB on any number of nodes in the cluster and embedding in applications, including those that are sold to customers or run as services. The only restriction that prevents the license from being considered free and open is the ban on selling commercial versions of CockroachDB, made in the form of cloud services. To issue a CockroachDB in the form of paid cloud services now requires the purchase of a commercial license.

As in the case of the re-licensing of MongoDB, Redis and TimescaleDB modules, the reason for the transition to a non-free license is the fight against the parasitization of cloud service providers who create derivative commercial products and resell open DBMS as cloud services but do not participate in the community and do not help in developing. It happens when the cloud providers, who are not related to the project, resell ready-made open solutions and benefit, but the developers are left with nothing.