# sui-tool download-formal-snapshot fails due to request throttling

**URL:** <https://forums.sui.io/t/sui-tool-download-formal-snapshot-fails-due-to-request-throttling/48668>\
**Category:** Technical Support\
**Tags:** sui\
**Created:** [June 16, 2025, 9:47am UTC](https://forums.sui.io/t/sui-tool-download-formal-snapshot-fails-due-to-request-throttling/48668 "2025-06-16T09:47:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wangdefa8778](https://avatars.discourse-cdn.com/v4/letter/w/ce7236/32.png) [@wangdefa8778](https://forums.sui.io/u/wangdefa8778)\
**Post date:** [June 16, 2025, 9:47am UTC](https://forums.sui.io/t/sui-tool-download-formal-snapshot-fails-due-to-request-throttling/48668/1 "2025-06-16T09:47:10Z")

</div>

Hi all,

I’m trying to download a mainnet snapshot using `sui-tool`, but I keep running into issues that prevent me from completing the process. Here’s the command I’m using:

```auto
sui-tool download-formal-snapshot \
  --latest \
  --genesis /home/xdl/sui-fullnode/genesis.blob \
  --network mainnet \
  --snapshot-bucket s3://mysten-mainnet-formal/ \
  --snapshot-bucket-type s3 \
  --path /var/sui/db \
  --num-parallel-downloads 50

```

The problem is that I often hit request limits, and the download fails with an error like this:

```auto
Failed to get file MANIFEST with error: Generic { store: "S3", source: Reqwest { retries: 10, max_retries: 10, elapsed: 14.776050894s, retry_timeout: 180s, source: reqwest::Error { kind: Request, url: "http://169.254.169.254/latest/api/token", source: hyper_util::client::legacy::Error(Connect, TimedOut) } } }

```

After this happens, the tool exits. When I restart it, it deletes all previously downloaded data, which makes it impossible to finish the snapshot download under throttling conditions.

Is there a way to:

- Resume downloads without starting over?
- Avoid or work around the S3 rate limiting?

Any help would be greatly appreciated!