DataYatriSpark, seen under the hood
Simulate

Simulation/Databricks

Educational simulation
Databricks

Delta Lake

Parquet files + _delta_log commits, ACID, and time travel.

Watch the canvas:data filelog commitsnapshotLive simulation
Object storagepart-000.parquetpart-001.parquetpart-002.parquet_delta_log/000.jsonadd part-000001.jsonadd part-001002.checkpointstate so farCommit 3 succeededevery reader now sees snapshot 3
Delta = Parquet files + an ordered log that says which files count.