Hello feathercoinians!

cryptogrinder

I see this in debug.log:

2017-03-30 18:41:59 ERROR: CheckBlockHeader() : block with timestamp before last checkpoint
2017-03-30 18:59:04 ProcessBlock: Preliminary checks
2017-03-30 18:59:04 ERROR: CheckBlockHeader() : block with timestamp before last checkpoint
2017-03-30 18:59:04 ERROR: ProcessBlock() : CheckBlock FAILED

can someone explain what can be wrong?

Cookieboy

Which version are you running? 0.9.6? Which platform? Just curious so we can help troubleshoot.

cryptogrinder

@Cookieboy i use 0.9.6 and I’m on Debian 3.16.39-1+deb8u1 (2017-02-22) x86_64 GNU/Linux

Cookieboy

Strange, let me look at my log. I am on 0.9.6 also, on Ubuntu. Just looking at my debug.log and saw no such errors in mine. How many nodes are you connected to? (feathercoin-cli getinfo) Maybe add my node - 50.204.87.222 and see if that helps (addnode 50.204.87.222 add)

If that doesn’t solve it, I suggest you relaunch feathercoind with -rescan and see if it can re-build the blocks and make sure all is in order.

cryptogrinder

feathercoin@vmi91570:~/.feathercoin$ feathercoind getinfo
{
“version” : 90600,
“protocolversion” : 70003,
“walletversion” : 60000,
“balance” : 0.00000000,
“blocks” : 1653088,
“timeoffset” : 0,
“connections” : 72,
“proxy” : “”,
“difficulty” : 5.57065017,
“testnet” : false,
“keypoololdest” : 1486291928,
“keypoolsize” : 101,
“paytxfee” : 0.00000000,
“relayfee” : 0.01000000,
“errors” : “”
}
feathercoind addnode 50.204.87.222 add made no output… didn’t change the getinfo connections amount… going to rescan

ChekaZ

@cryptogrinder you are up to date?

Cookieboy

It appears to be - here is my latest client info -

feathercoin-cli getinfo
{
“version” : 90600,
“protocolversion” : 70003,
“walletversion” : 60000,
“balance” : XXXXXXXXXXXXX,
“blocks” : 1653092,
“timeoffset” : 0,
“connections” : 37,
“proxy” : “”,
“difficulty” : 4.30319584,
“testnet” : false,
“keypoololdest” : 1489605577,
“keypoolsize” : 101,
“paytxfee” : 0.00000000,
“relayfee” : 0.01000000,
“errors” : “”
}

cryptogrinder

@Cookieboy after rescan I see no errors… so thank you!.. only question is how it got to that state but I guess it’s hard to answer… I think this topic can be mark as solved and if i see that error again I will report again

Wellenreiter

@cryptogrinder said in Hello feathercoinians!:

ERROR: CheckBlockHeader() : block with timestamp before last checkpoint

I have seen this message before.
I think it is caused by Litecoin systems connecting and trying to send Litecoin blocks during initial sync.
The reason is, that the pcMessageStart string is still shared between Litecoin and Feathercoin, and the seed nodes are shared, too.

The message will not occur anymore when the client is fully synced.

Starting 0.9.6.1 we move to a unique pcMessageStart, so the connections from other coin clients are rejected, before block are sent.