Cellar

The cellar contains both frozen query results (which have been explicitly frozen using the freeze command), and status of data sinks, such as Kafka or an HTTP endpoint. All non-sink status cellar entries can be thawed to be used in a query using the thaw command.

It is also possible to upload files to the cellar, which can be interacted with using the thaw command.

Sink Status

The cellar contains entries for each sink that has been written to, this entry signifies whether the last attempted write of query results to the sink was successful or not.

Uploading Files

In the current version of crul, uploaded files must be in the results format, which is json with the content wrapped in a content key. In future versions, csv and json files will be supported.

  {
    "content": {
      ...
    }
  }