Offline deletion tool that searches and collects stale blocks

[kuenishi]

Supercedes #1124 . Changes since #1124 are:

• Offline delete tool:
  • Improved success count by checking delete oks
  • Add an option to support old Riak 1.4 key format
  • Add -mode(compile).
  • Add serious warning and interactive input for running Riak process
• Select-gc tool:
  • Change name of options from/to to start/end
  • Remove -l option for leeway; use start/end
  • Add -mode(compile).

Also, for fallbacks, I'd rather expect hinted handoff works and then delete with this tool. This is to prevent this script from being more complex, from operational mistake and from further bugs.

[shino]

for fallbacks, I'd rather expect hinted handoff works and then delete with this tool. This is to prevent this script from being more complex

Agree. Then, it's prerequisite (or recommended at least) to finish hinted handoff before running the scripts.

[shino]

Space between two options?

[kuenishi]

Updated

[shino]

Works nice 😄

[shino]

@borshop merge