File System

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Revision as of 20:58, 31 August 2025 by Carli (talk | contribs) (Created page with "In the file system persistency layer, each subfolder of your data folder is a database. Each folder has the following files: * schema.json - list of all tables, columns, keys and shards; is updated every time a shard is added or removed or the schema changes * schema.json.old - fallback file for crash recovery * [uuid]-[columnname] - the content of a column (in case the ENGINE is not MEMORY) * [uuid].log - transaction log in c...")
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In the file system persistency layer, each subfolder of your data folder is a database.

Each folder has the following files:

  • schema.json - list of all tables, columns, keys and shards; is updated every time a shard is added or removed or the schema changes
  • schema.json.old - fallback file for crash recovery
  • [uuid]-[columnname] - the content of a column (in case the ENGINE is not MEMORY)
  • [uuid].log - transaction log in case the ENGINE is LOGGED or SAFE
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