Flow Events Backfill
Aug 11, 2022 - Monitoring the rewalk of blocks that were ingested from 7/18-8/4 where transaction event data was missing due to the new HTTPS endpoint. The black line is transaction and block count within the events table, while the bars are the total transactions and events in the core tables. We should expect the line to start to meet the bars as the backfill occurs.
Flow Latency // Time to Complete Coverage
Dec 8, 2023 - Latency on Flow is expected to be worse than other chains because, at minimum, 4 calls are required to generate a complete block. Blocks are requested by height, which returns an array of collections by ID. These collections are containers for transactions, thus the collection response (called by individual ID) contains an array of transaction IDs. Transactions are then requested by ID, twice, for the tx body and tx response. The response contains the event data and is often an order of magnitude slower than the other 3 gRPC calls.