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I am trying to run a tezos node, but it takes so long time to bootstrap. It has been a day but it still hasn't finished syncing (I guess it is only around 50% from the timestamp).

I have just known that there is a quick way to start a node if there is a snapshot. In this link there are many places to download snapshots. I don't know if it is a wise idea to just download from any of those site, since I worry there may be security issues that can exploit my node.

Anyone know a snapshot from trusted places (e.g. from official tezos website, or official github)?

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  • I'm sorry I don't have an answer, but do you mean to say you are syncing from genesis and after 1 day have got 50% of the blockchain already??? That seems incredible. Did you compile or are you using binaries or are you using the provided docker images?
    – Bo Byrd
    Sep 28, 2021 at 13:33
  • I'm not very sure about your questions, so I provide the full information here: Host node is not a bare metal server, it is a dedicated instant with 2 dedicated core, 120GB SSD, 8GB RAM (from vultr). I installed Ubuntu 20.04 on it and follow this instruction to install tezos.gitlab.io/introduction/howtoget.html . Then I ran tezos-node identity generate, tezos-node run --rpc-addr 127.0.0.1 (about 26 hours ago). Then tezos-client bootstrapped (about 10-11 hours ago). Currently the timestamp is 2019-02-14T09:14:17Z. Is that very slow or normal? Thanks!
    – aye
    Sep 28, 2021 at 14:04
  • You have a 120GB SSD, what mode are you using? In archive mode, the node takes close to 200GB. It takes about 1 week to synchronize a mainnet node in archive mode, with a good machine and good internet connection.
    – Philippe Wang
    Sep 28, 2021 at 14:27
  • Running in full mode (default), your node will start syncin'g from others in the P2P network starting 7 cycles in the past. Only an archive mode will start from genesis. See @PhilippeWang answer below. When you import the snapshot, provide the additional parameter of the hash for verification.
    – utdrmac ♦
    Sep 28, 2021 at 14:57
  • I didn't specify archive or genesis, so I guess it is the default (full mode). Thank you for the information
    – aye
    Sep 28, 2021 at 15:58

1 Answer 1

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You don't need to trust the provider of the snapshot very much. Once you have imported the snapshot, you can simply check that the hash of a recent block is the same as the hash given by some explorer that you will trust. For instance, if block 1,730,000's hash is BLmKPfoMB6E52tdvTHJsWPHTGG7jUWXiW5yW9pAopEuWgYh69zp on several public explorers and on your node too, then you're good. If the hash doesn't match, then discard and then use another snapshot provider...

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  • Thank you for your answer. I understand it now.
    – aye
    Sep 28, 2021 at 15:56
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    You don't even need to import the snapshot before checking that the hash of its head is included on the chain according to explorers.
    – Raphaël Cauderlier
    Sep 28, 2021 at 20:05

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