After the code update is complete, I have encountered this problem with accessing the node 404

[focusshell]

#

[cwgoes]

Is your node storing historical data? backerei needs to query data from specific blocks.

The 404 response code is returned by the Tezos node, it has nothing to do with backerei.

[focusshell]

I did not perform cp replication when updating the node, is it related to this?

[cwgoes]

I am not sure what you mean by "cp replication", but you will probably need a full historical data archive to use backerei (a state snapshot alone may be insufficient).

[focusshell]

But now the data has been updated, how can I get historical data?

[focusshell]

After Athen update, the data structure change such that the size of the ledger is only 6G, not sure if the historical data still kept. I think the upgrade already prun the historical data. Do you guys have such issue after Athen upgrade? really appreciate your prompt reply.

[focusshell]

Ok, let me rephrase my question. After Athen upgrade, I did't use CP command to back up the historical data, I assume that as such the ledger database was prun to 6G. Do I have to keep the historical data to run Backerei? I think an important aspect of the Athen upgrade is that we can prun the ledger and save storage space, so if I have to run Backerei, now I still have to keep all the historical ledger (which is about 200G), is my understanding correct？ if this is the case, how can i recover the prun out historical data? really appreciate your prompt reply.

[cwgoes]

You need the historical data, not in its entirety but at least for the past half-dozen cycles or so.

I don't know the precise commands to restore it, I suggest asking on the Tezos developer chat.

[gaia]

@focusshell you can check what's the oldest block your node has via ./tezos-admin-client show current checkpoint note the number in Checkpoint level:

then get the Block Hash Backerei is trying to query, in your case BliRTVLD..... and plug it into tzscan. the Level number tzscan displays for this block hash should be higher than your node's Checkpoint level:. If it is lower, backerei can't work.

[gaia]

@cwgoes would it be possible to have backerei use rpc.tezrpc.me instead of the local node?

[cwgoes]

I don't recommend using an external node, since the data returned cannot be verified, but backerei will support it - just change the host and port in ~/.backerei.yaml accordingly.

You will still need a local client binary to sign transactions.

[cwgoes]

Closing since it seems like the original question has been answered.

[gaia]

In .backerei.yaml I have

host: rpc.tezrpc.me
port: 443

but the request still goes out as Secure = False

So the response is a 400 The plain HTTP request was sent to HTTPS port