shards alternatives and similar packages
Based on the "ORM and Datamapping" category.
Alternatively, view shards alternatives based on common mentions on social networks and blogs.
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paper_trail
Track and record all the changes in your database with Ecto. Revert back to anytime in history. -
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ecto_psql_extras
Ecto PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more. -
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README
Shards
ETS tables on steroids!
Sharding for ETS tables out-of-box.
[
](LICENSE)
Why might we need Sharding/Partitioning for the ETS tables? The main reason is to keep the lock contention under control enabling ETS tables to scale out and support higher levels of concurrency without lock issues; specially write-locks, which most of the cases might cause significant performance degradation.
Therefore, one of the most common and proven strategies to deal with these problems is Sharding or Partitioning; the principle is pretty similar to DHTs.
This is where shards comes in. Shards is an Erlang/Elixir library fully compatible with the ETS API, but it implements sharding or partitioning on top of the ETS tables, completely transparent and out-of-box.
See the [getting started][getting_started] guide and the online documentation.
Installation
Erlang
In your rebar.config:
{deps, [
{shards, "1.0.1"}
]}.
Elixir
In your mix.exs:
def deps do
[{:shards, "~> 1.0"}]
end
For more information and examples, see the [getting started][getting_started] guide.
Important links
Documentation - Hex Docs.
Blog Post - Transparent and out-of-box sharding support for ETS tables in Erlang/Elixir.
Projects using shards:
- shards_dist - Distributed version
of
shards. It was moved to a separate repo sincev1.0.0. - ExShards – Elixir wrapper for
shards; with extra and nicer functions. - Nebulex – Distributed Caching framework for Elixir.
- KVX – Simple Elixir in-memory Key/Value
Store using
shards(default adapter). - Cacherl Distributed Cache
using
shards.
- shards_dist - Distributed version
of
Testing
$ make test
You can find tests results in _build/test/logs, and coverage in
_build/test/cover.
NOTE:
shardscomes with a helperMakefile, but it is just a simple wrapper on top ofrebar3, therefore, you can do everything usingrebar3directly as well (e.g.:rebar3 do ct, cover).
Generating Edoc
$ make docs
NOTE: Once you run the previous command, you will find the generated HTML documentation within
docfolder; opendoc/index.html.
Contributing
Contributions to shards are very welcome and appreciated!
Use the issue tracker for bug reports or feature requests. Open a pull request when you are ready to contribute.
When submitting a pull request you should not update the [CHANGELOG.md](CHANGELOG.md), and also make sure you test your changes thoroughly, include unit tests alongside new or changed code.
Before to submit a PR it is highly recommended to run make check before and
ensure all checks run successfully.
Copyright and License
Copyright (c) 2016 Carlos Andres Bolaños R.A.
Shards source code is licensed under the [MIT License](LICENSE).
*Note that all licence references and agreements mentioned in the shards README section above
are relevant to that project's source code only.