Snapshot import occasionally fails with "..failed to read from underlying reader.."

[magik6k]

Checklist

• This is not a security-related bug/issue. If it is, please follow please follow the security policy.
• I have searched on the issue tracker and the lotus forum, and there is no existing related issue or discussion.
• I am running the Latest release, the most recent RC(release canadiate) for the upcoming release or the dev branch(master), or have an issue updating to any of these.
• I did not make any code changes to lotus.

Lotus component

• lotus daemon - chain sync
• lotus fvm/fevm - Lotus FVM and FEVM interactions
• lotus miner/worker - sealing
• lotus miner - proving(WindowPoSt/WinningPoSt)
• lotus JSON-RPC API
• lotus message management (mpool)
• Other

Lotus Version

latest master

Repro Steps

Import a snapshot with bad internet

Describe the Bug

Looks like snapshot imports occasionally drop, we should add a auto resume mechanism

Logging Information

ERROR: importing chain failed: failed to read from underlying reader: unexpected EOF

[magik6k]

Relevant code in https://github.com/filecoin-project/lotus/blob/master/cmd/lotus/daemon.go#L433

Worth noting that I mostly see this on .zst imports