Garbage-collector - Vacuum

You can optimize hash files used in toot operation.

$ java -jar egor.jar vacuum -help
usage: java.lang.Process [-d <DAYS>] [-help] [-n] -u <FILENAME>
 -d,--dead-line <DAYS>            number of days, default: 14
 -help                            print this message
 -n,--dry-run                     Read-only simulation mode
 -u,--unique-hash-db <FILENAME>   Content hash database

This operation removes all obsolete hash records of posted statuses.

Hash files shorter than several megabytes need not be optimized on modern hardware.

--unique-hash-db

The filename points to hash file which will be optimized.

--dead-line

Records which are younger than the given number of days are not removed from the hash file.

--dry-run

Do not write an optimized hash file, just show the statistics.