zonedstorage / rocksdb_trace_translator Goto Github PK

translate key range in manifest file

USAGE "python3 ./manifest_translator.py -f [manifest_dump_file, ...]"

options are below: -f --files "target file list" -d --directory "target directory" -o --output "output file path (default: "./manifest_out") -s --start_time "target trace start time (default: 0) -e --end_time "target trace end time (default: 0)

• If a default is defined, it can be optionally applied
• The file list and directory can be simultaneously applied, scanning all relevant files

1. parse all key in manifest_dump

• Check for trivial move and indicate the previous level where it was located
• Verify if it's included within the trace window

2. allocate new value of all key

• Collect the chars used in keys for each column family
• encode all key, then get range(min - max) for each column family
• New keys are cast as integers and floats based on a determined ratio within a specified range

3. print output file (default: "manifest_out")

• output contains SST identifier, Column Family, size of SST, level, index of start key, index of end key, Creation/Deletion Time