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Update README to contain a quick start guide for speedb
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Amnon Hanuhov committed Jun 20, 2022
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## RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
# SpeeDB: A drop in replacement embedded solution for RocksDB

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## Checking out the source
If you're a GitHub user:

RocksDB is developed and maintained by Facebook Database Engineering Team.
It is built on earlier work on [LevelDB](https://github.com/google/leveldb) by Sanjay Ghemawat (sanjay@google.com)
and Jeff Dean (jeff@google.com)
git clone git@github.com:speedb-io/speedb

This code is a library that forms the core building block for a fast
key-value server, especially suited for storing data on flash drives.
It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs
between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF)
and Space-Amplification-Factor (SAF). It has multi-threaded compactions,
making it especially suitable for storing multiple terabytes of data in a
single database.
otherwise:

Start with example usage here: https://github.com/facebook/rocksdb/tree/main/examples
git clone git://github.com:ceph/ceph

See the [github wiki](https://github.com/facebook/rocksdb/wiki) for more explanation.
## Dynamically linking SpeeDB
If speedb is in the default library path, use:

The public interface is in `include/`. Callers should not include or
rely on the details of any other header files in this package. Those
internal APIs may be changed without warning.
-lspeedb

Questions and discussions are welcome on the [RocksDB Developers Public](https://www.facebook.com/groups/rocksdb.dev/) Facebook group and [email list](https://groups.google.com/g/rocksdb) on Google Groups.
Otherwise, you have to include the path to the folder the library is in like so:

## License
-L/path/to/speedb/library/folder -lspeedb

## Usage
Usage of the library in your code is the same, regardless of whether you statically linked the library or dynamically linked it, and examples can be found under the https://github.com/speedb-io/speedb/tree/main/examples directory.
The public interface is in `include/`. Callers should not include or rely on the details of any other header files in this package. Those internal APIs may be changed without warning.

## Build dependencies
Please refer to the file https://github.com/speedb-io/speedb/blob/main/INSTALL.md for a list of all the dependencies and how to install them across different platforms.

## Building SpeeDB

mkdir build && cd build
cmake .. [cmake options] -GNinja
ninja

This will build all the targets specified inside https://github.com/speedb-io/speedb/blob/main/CMakeLists.txt.
By default, `ninja` will run N jobs in parallel where N is derived from the number of CPU cores available on the building host. If you want to limit the number of jobs, simply use the `-j` option.

If you want to build a specific target:

ninja [target name]

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.
## Running tests

cd build
ninja
./[test name] --db=/path/to/db

for example, `db_blob_basic_test`:

cd build
ninja
./db_blob_basic_test --db=/tmp/example_db

The test will generate a random DB at the specified path. This is also where speedb will store the LOG files.

## Contributing code
`TODO:` This section should point the reader to a dedicated file explaining how to contribute

## License
SpeeDB is licensed under Apache 2.0

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