Scenario
Round-trip latencies for chained requests eth_getBlockByNumber(latest, false) and eth_getLogs(hash) with start-to-start throttling of (at least) 1100 ms for every request.
Also, block number consistency with block availability and block age. The block propagation comparison is conservative and latency-agnostic.
Of the possible 31 regions, 2 were selected for data collection: Columbus, OH and Frankfurt.
Each location probe breaks its processing loop if / when the endpoint response is too-many-requests, a.k.a. HTTP code 429 etc. Also, codes 401 and 403.
At the time of the report generation: 4 of 4 datasets were available from 2 selected regions x 2 endpoints.
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Findings
| Endpoint | Lagging | Unique | Lowest | Arrival Tms | Arrival Region | Highest | Arrival Tms | Arrival Region |
|---|---|---|---|---|---|---|---|---|
| A. plasma.Drpc.org | 0 | 15 | 21,918,245 | 1,778,850,108,970 | Frankfurt / AWS | 21,918,274 | 1,778,850,137,616 | Columbus, OH / AWS |
| B. plasma.api.Onfinality.io | 0 | 5 | 21,918,245 | 1,778,850,108,991 | Columbus, OH / AWS | 21,918,254 | 1,778,850,117,882 | Frankfurt / AWS |
No conclusive proof of block lag was found in this dataset / interval.
Details
Latencies exclude one warmup request per endpoint in each region. Additional columns are visible when you scroll to the right.
Errors
Info about errors incl. 429. Up to 4 retained error responses per endpoint, per region. Scenario-derived availability notes may also appear.