File System

From MemCP
Revision as of 19:58, 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...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

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
Retrieved from "https://www.memcp.org/index.php?title=File_System&oldid=238"