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Updated Path Specific Filer Store (markdown)

Chris Lu 2020-12-21 23:11:02 -08:00
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Path-Specific-Filer-Store.md

@ -41,6 +41,14 @@ When any request comes in, the directory is matched to all locations with custom
This only works for new data or new updates. Existing data for old directories will become `lost` or invisible. So only apply this to new directories.
# Data Storage
The directory path stored in the path-specific filer store has the `location` prefix trimmed and persists to the store. For example, the file `/my/home/tmp/file.txt` stored in path-specific filer store with the `location = "/my/home/" will only store "/tmp/file.txt" to the store.
When reading back, the prefix will be transparently added back.
This trimming saves some storage, but that is not the purpose. This means the path-specific filer store can later change `location` to another directory, or even another filer.
# What still works?
This can not be applied to existing directories. Besides this requirement, all other meta data operations are almost transparent to this configuration change. For example,