commit f42f0a1c48de7df84b3220bd72ecd3eb2b85e5a2 · pyrox.dev/nixpkgs

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nixos/modules/services/databases/foundationdb.xml
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       <para><emphasis>Maintainer:</emphasis> Austin Seipp</para>

     

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       <para><emphasis>Available version(s):</emphasis> 5.1.x</para>

     

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       <para><emphasis>Available version(s):</emphasis> 5.1.x, 5.2.x, 6.0.x</para>

     

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       <para>FoundationDB (or "FDB") is a distributed, open source, high performance,

     

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       transactional key-value store. It can store petabytes of data and deliver

     
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       <programlisting>

     

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       services.foundationdb.enable = true;

     

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       services.foundationdb.package = pkgs.foundationdb51; # FoundationDB 5.1.x

     

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       services.foundationdb.package = pkgs.foundationdb52; # FoundationDB 5.2.x

     

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       </programlisting>

     

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       </para>

     

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       ...

     

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       fdb>

     

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       </programlisting>

     

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       </para>

     

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       <para>You can also now write programs using the available client libraries.

     

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       For example, the following Python program can be run in order to grab the cluster status,

     

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       as a quick example. (This example uses <command>nix-shell</command> shebang

     

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       support to automatically supply the necessary Python modules).

     

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       <programlisting>

     

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       a@link> cat fdb-status.py

     

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       #! /usr/bin/env nix-shell

     

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       #! nix-shell -i python -p python pythonPackages.foundationdb52

     

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       from __future__ import print_function

     

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       import fdb

     

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       import json

     

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       def main():

     

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           fdb.api_version(520)

     

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           db = fdb.open()

     

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           @fdb.transactional

     

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           def get_status(tr):

     

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               return str(tr['\xff\xff/status/json'])

     

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           obj = json.loads(get_status(db))

     

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           print('FoundationDB available: %s' % obj['client']['database_status']['available'])

     

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       if __name__ == "__main__":

     

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           main()

     

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       a@link> chmod +x fdb-status.py

     

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       a@link> ./fdb-status.py

     

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       FoundationDB available: True

     

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       a@link>

     

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       </programlisting>

     

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       </para>

     

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