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YoptaDB is a Cassandra/Scylla-backed time series database written in Elixir. It's design is inspired by the KairosDB. This may be useful in Java-less environments such as exotic architectures.

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YoptaDb

YoptaDB is a simple time series database backed by Scylla or Cassandra

The design is inspired by KairosDB.

Installation

If available in Hex, the package can be installed by adding yopta_db to your list of dependencies in mix.exs:

def deps do
  [
    {:yopta_db, "~> 0.1.0"}
  ]
end

Usage

Currently, just 3 methods are implemented:

# connect to C* database and create the keyspace/tables if needed
{:ok, pid} = YoptaDb.init(["10.88.0.2:9042"], %{:keyspace=> "my_keyspace3", :replication_factor=>1})
# put the counter
{:ok, _} = YoptaDb.put(pid, "7dc62817-e855-4568-ac93-d4f0b7f294da",DateTime.to_unix(DateTime.utc_now())*1000,"21.0")
# get a list of counters ({timestamp, value})
{:ok, list} = YoptaDb.get(pid, "7dc62817-e855-4568-ac93-d4f0b7f294da", 0, 16098927260000)

ToDo:

Implement the gen_server protocol.

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/yopta_db.

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YoptaDB is a Cassandra/Scylla-backed time series database written in Elixir. It's design is inspired by the KairosDB. This may be useful in Java-less environments such as exotic architectures.

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