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mdbx: update MithrilDB status (backport).

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Леонид Юрьев (Leonid Yuriev) 2023-01-16 19:12:08 +03:00
parent 47851135f3
commit d376feb7bc
2 changed files with 36 additions and 7 deletions
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41
README.md
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@ -81,19 +81,48 @@ Historically, _libmdbx_ is a deeply revised and extended descendant of the amazi
[Lightning Memory-Mapped Database](https://en.wikipedia.org/wiki/Lightning_Memory-Mapped_Database).
_libmdbx_ inherits all benefits from _LMDB_, but resolves some issues and adds [a set of improvements](#improvements-beyond-lmdb).
### MithrilDB and Future
<!-- section-begin mithril -->
The next version is under active non-public development from scratch and will be
The next version is under non-public development from scratch and will be
released as **MithrilDB** and `libmithrildb` for libraries & packages.
Admittedly mythical [Mithril](https://en.wikipedia.org/wiki/Mithril) is
resembling silver but being stronger and lighter than steel. Therefore
_MithrilDB_ is a rightly relevant name.
> _MithrilDB_ will be radically different from _libmdbx_ by the new
> database format and API based on C++17, as well as the [Apache 2.0
> License](https://www.apache.org/licenses/LICENSE-2.0). The goal of this
> revolution is to provide a clearer and robust API, add more features and
> new valuable properties of the database.
_MithrilDB_ is radically different from _libmdbx_ by the new database
format and API based on C++20. The goal of this revolution is to provide
a clearer and robust API, add more features and new valuable properties
of the database. All fundamental architectural problems of libmdbx/LMDB
have been solved there, but now the active development has been
suspended for top-three reasons:
1. For now _libmdbx_ «mostly» enough for all [our products](https://www.ptsecurity.com/ww-en/products/),
and I’m busy in development of replication for scalability.
2. Waiting for fresh [Elbrus CPU](https://wiki.elbrus.ru/) of [e2k architecture](https://en.wikipedia.org/wiki/Elbrus_2000),
especially with hardware acceleration of [Streebog](https://en.wikipedia.org/wiki/Streebog) and
[Kuznyechik](https://en.wikipedia.org/wiki/Kuznyechik), which are required for Merkle tree, etc.
3. The expectation of needs and opportunities due to the wide use of NVDIMM (aka persistent memory),
modern NVMe and [Ангара](https://ru.wikipedia.org/wiki/Ангара_(интерконнект)).
However, _MithrilDB_ will not be available for countries unfriendly to
Russia (i.e. acceded the sanctions, devil adepts and/or NATO). But it is
not yet known whether such restriction will be implemented only through
a license and support, either the source code will not be open at all.
Basically we are not inclined to allow our work to contribute to the
profit that goes to weapons that kill our relatives and friends.
NO OPTIONS.
Nonetheless, I try not to make any promises regarding _MithrilDB_ until release.
Contrary to _MithrilDB_, _libmdbx_ will forever free and open source.
Moreover with high-quality support whenever possible. Tu deviens
responsable pour toujours de ce que tu as apprivois. So we will continue
to comply with the original open license and the principles of
constructive cooperation, in spite of outright Github sabotage and
sanctions. I will also try to keep (not drop) Windows support, despite
it is an unused obsolete technology for us.
<!-- section-end -->

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docs/_toc.md
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@ -38,4 +38,4 @@ including creating [merge-request](https://gitflic.ru/project/erthink/libmdbx/me
---
\section MithrilDB MithrilDB
\section MithrilDB MithrilDB and Future