4c17243157
1. Allow the validator bootstrap code to specify the minimal snapshot download speed. If the snapshot download speed is detected below that, a different RPC can be retried. The default is 10MB/sec. 2. To prevent spinning on a number of sub-optimal choices and not making progress, the abort/retry logic is implemented with the following safe guards: 2.1 at maximum we do this retry for 5 times -- this number is configurable with default 5. 2.2 if the download in one notification round (5 second) is more than 2%, do not do retry -- it is not as bad anyway. 2.3 if the remaining estimate time is less than 1 minutes, do not abort retry as it will be done quickly anyway. 2.4 We do this abort/retry logic only at the first notification to avoid wasting download efforts -- the reasoning is being opportunistic and too greedy may not achieve overall shorter download time. 3. The download_snapshot and download_file is modified with the option allowing caller to notified of download progress via a callback. This allows the business logic of retrying to the place it belongs. |
||
|---|---|---|
| .. | ||
| main.rs | ||