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Elasticsearch is Open Source, Again (www.elastic.co)

submitted 3 weeks ago* (last edited 3 weeks ago) by [email protected] to c/[email protected]

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[D.N.A] Elasticsearch and Kibana can be called Open Source again. It is hard to express how happy this statement makes me. Literally jumping up and down with excitement here. All of us at Elastic are. Open source is in my DNA. It is in Elastic DNA. Being able to call Elasticsearch Open Source again is pure joy.

[LOVE.] The tl;dr is that we will be adding AGPL as another license option next to ELv2 and SSPL in the coming weeks. We never stopped believing and behaving like an open source community after we changed the license. But being able to use the term Open Source, by using AGPL, an OSI approved license, removes any questions, or fud, people might have.

[Not Like Us] We never stopped believing in Open Source at Elastic. I never stopped believing in Open Source. I’m going on 25 years and counting as a true believer. So why the change 3 years ago? We had issues with AWS and the market confusion their offering was causing. So after trying all the other options we could think of, we changed the license, knowing it would result in a fork of Elasticsearch with a different name and a different trajectory. It’s a long story.

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[–] [email protected] 3 points 3 weeks ago* (last edited 3 weeks ago) (9 children)

Because it does not comply with the Open Source definition?

SSPL violates these two:

No Discrimination Against Fields of Endeavor

The license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.

License Must Not Restrict Other Software

The license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open source software.

ELv2 violates these four:

Free Redistribution

The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.

Derived Works

The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.

Integrity of The Author’s Source Code

The license may restrict source-code from being distributed in modified form only if the license allows the distribution of “patch files” with the source code for the purpose of modifying the program at build time. The license must explicitly permit distribution of software built from modified source code. The license may require derived works to carry a different name or version number from the original software.

No Discrimination Against Fields of Endeavor

The license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.

Simply putting in the AGPLv3 does not remove unfair restrictions. I mean, SSPLv1 is not compatible with AGPLv3.

[–] [email protected] 19 points 3 weeks ago* (last edited 3 weeks ago) (5 children)

Do you... not know how multi-licensing works? You can use the project's code under the terms of whichever license you prefer, you don't use all three at once. Simply putting the AGPLv3 does remove unfair restrictions, because it means you don't have to use either of the proprietary licenses the project was previously only available under.

[–] [email protected] -5 points 3 weeks ago* (last edited 3 weeks ago) (4 children)

This is getting so tiring because I've mentioned it earlier too - section 13 of AGPLv3 and SSPLv1 have different scopes. Just read this article by ScyllaDB - this is with respect to MongoDB, which has a similar licensing model. If it were "really" open-source, then RedHat wouldn't have removed MongoDB from their "free" repositories.

[–] [email protected] 2 points 3 weeks ago

Are you saying that the mere existence of the option of using a non open source license invalidate the provisions in the open source option? That is, if they offered only AGPL, they would be oss but if they offer your choice of AGPL and something non oss, the AGPL option would no longer be oss too? The article you linked does not address this as far as I can tell.

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