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Published 20 hours ago • verified publisher icon Cuprate

Database fast-then-slow sync

Open hinto-janai opened this issue 4 months ago • 0 comments

What

Cuprate's database's default disk syncing mode may be fast-then-slow, which would cause the database to operate in fast mode, not flushing to disk during initial sync for speed, then eventually switch to safe mode, flushing whenever possible for reliability.

This was discussed for monerod here:

  • https://github.com/monero-project/monero/issues/706#issuecomment-267501242
  • https://github.com/monero-project/monero/issues/1463
  • https://github.com/monero-project/monero/pull/1506

Open questions

  • Q1. Under what conditions do we start in fast-then-safe mode? (accounting for restarts, practically empty database files, etc)
  • Q2. How will we reliably know when to switch to safe mode? (when is the node close enough to being synced?)
  • Q3. Should this be the default sync mode?

hinto-janai avatar Feb 26 '24 21:02 hinto-janai