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consolidated_fragment_metadata_file.md

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title
Consolidated Fragment Metadata File

A consolidated fragment metadata file has name <timestamped_name>.meta and is located here:

my_array                              # array folder
   |_ ....
   |_ __fragment_meta                 # array fragment metadata folder
         |_ <timestamped_name>.meta   # consolidated fragment metadata file
         |_ ...

There may be multiple such files in the array folder. Each consolidated fragment metadata file combines the metadata footers of a set of fragments. It has the following on-disk format:

Field Type Description
URI 1 length uint64_t Number of bytes in the string of URI 1
URI 1 uint8_t[] URI 1
URI 1 offset uint64_t The offset in the file where the URI 1 footer begins
… … …
URI N length uint64_t Number of bytes in the string of URI N
URI N uint8_t[] URI N
URI N offset uint64_t The offset in the file where the URI N footer begins
URI 1 footer Footer Serialized footer of URI (fragment) 1
… … …
URI N footer Footer Serialized footer of URI (fragment) N