{CodeRoyale}
All challenges
Multiple ChoiceBeginner 45s

CDC to search index consistency

You sync a database to a search index via CDC. Queries sometimes miss just-written docs. Why?
Options
  1. 1The search engine is fundamentally unable to store free-text fields for querying
  2. 2The CDC pipeline reliably drops about fifty percent of all change events sent
  3. 3The search index is opened read-only so recently written documents cannot be added
  4. 4Replication lag between the DB commit and index update creates read-after-write inconsistency
searchcdcconsistency

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle