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Describe structure of the dataset more clearly
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piroor committed Apr 1, 2014
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Expand Up @@ -208,9 +208,13 @@ catalog.json:
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This `catalog.json` defines a dataset `Starbucks` as a volume based on two replicas, and there are three sub volumes for each replica.
This `catalog.json` defines a dataset `Starbucks` as:

These six sub volumes having `"address"` information are internally called as *single volume*s.
* At the top level, there is one volume based on two sub volumes, called "replicas".
* At the next lower level, one replica volume is based on three sub volumes, called "slices".
They are atomic elements of the dataset.

These six atomic volumes having `"address"` information are internally called as *single volume*s.
They are minimum elements constructing a Droonga's dataset.
It indicates the location of the corresponding physical storage which is a database for Groonga, they are managed by `fluent-plugin-droonga` instances automatically.

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