ERROR: ConnectBlock: Consensus::CheckBlock: bad-txnmrklroot, hashMerkleRoot mism

goddog

member

Activity: 168

Merit: 47

8426 2618 9F5F C7BF 22BD E814 763A 57A1 AA19 E681

Same problem here, using Bitcoin Core Daemon version v0.16.1rc2
CentOS Linux release 7.4.1708 (Core)
in a virtualbox environment.
(internal hdd no USB)

I will need weeks, or months, to resynchronize from the beginning :-(

Quote from: achow101 on December 27, 2017, 11:27:19 PM

Bitcoin Core will need continuous connection to the drive and any sort of interruption will result in data corruption.

this is very bad. something have to be done to prevent a total corruption, I know the best way to have it done is to work on it myself.... I will try, but C my coding skills are not the best.
A workaround can be to backup the blockchain daily... I will try to implement this first.

achow101

staff

Activity: 3458

Merit: 6793

Just writing some code

Quote from: joondez on December 26, 2017, 12:37:01 PM

What standard diagnostics tool is regularly used by this forum?

memtest86

Quote from: joondez on December 26, 2017, 12:37:01 PM

Not sure I have a hardware problem. I've been using this external hard drive to torrent and run other tasks, and have no problems. I can also play video games and utilize my RAM with no issues as well.

Using an external hard drive is not recommended, both for performance reasons and data corruption reasons. USB is generally slower than the internal connection to a hard drive, so the sync will be much slower. Furthermore, we have found that people have had a hard time with syncing to external hard drives as Bitcoin Core will need continuous connection to the drive and any sort of interruption will result in data corruption. Have you tried not using the external drive?

AB de Royse777

legendary

Activity: 2464

Merit: 3878

Hire Bitcointalk Camp. Manager @ r7promotions.com

Maybe just export private keys and import them another wallet like Electrum?

joondez

newbie

Activity: 5

Merit: 0

I give up. This is impossible. Client doesn't work, can't sync to the blockchain at all.

joondez

newbie

Activity: 5

Merit: 0

What standard diagnostics tool is regularly used by this forum?

Not sure I have a hardware problem. I've been using this external hard drive to torrent and run other tasks, and have no problems. I can also play video games and utilize my RAM with no issues as well.

achow101

staff

Activity: 3458

Merit: 6793

Just writing some code

Quote from: joondez on December 21, 2017, 10:03:18 AM

unfortunately it happened again, this time at 5%

Since this is continually happening, this may be a sign of hardware failure. You should run diagnostics on your RAM and hard drive to make sure that there are no errors.

joondez

newbie

Activity: 5

Merit: 0

unfortunately it happened again, this time at 5%

joondez

newbie

Activity: 5

Merit: 0

Aw man. Okay thanks

achow101

staff

Activity: 3458

Merit: 6793

Just writing some code

The easiest thing to do would be to completely redownload the entire blockchain (considering that you aren't synced very far, this would not delay you that much). Stop Bitcoin Core and go to the Bitcoin Core data directory and delete the blocks and chainstate folders. Then start Bitcoin Core again.

joondez

newbie

Activity: 5

Merit: 0

So my Bitcoin Core (v0.15.1 64-bit) is definitely stuck. Screenshot below. Anybody know what I can do? This is what shows in the debug.log:

Quote

2017-12-20 15:27:06 ERROR: ConnectTip(): ConnectBlock 00000000000000cb0ec2cbadfb9ce1b7e5909725b959ec3df2cfcaaf1dbe93f6 failed
2017-12-20 15:27:06 ERROR: ConnectBlock: Consensus::CheckBlock: bad-txnmrklroot, hashMerkleRoot mismatch (code 16)
2017-12-20 15:27:06 ERROR: ConnectTip(): ConnectBlock 00000000000000cb0ec2cbadfb9ce1b7e5909725b959ec3df2cfcaaf1dbe93f6 failed
2017-12-20 15:27:06 ERROR: ConnectBlock: Consensus::CheckBlock: bad-txnmrklroot, hashMerkleRoot mismatch (code 16)
2017-12-20 15:27:06 ERROR: ConnectTip(): ConnectBlock 00000000000000cb0ec2cbadfb9ce1b7e5909725b959ec3df2cfcaaf1dbe93f6 failed
2017-12-20 15:27:06 ERROR: ConnectBlock: Consensus::CheckBlock: bad-txnmrklroot, hashMerkleRoot mismatch (code 16)

https://i.imgur.com/qfneoYA.png

I'm running this on a Windows 10 Machine, i5-3570K 3.40 GHz, 16GB RAM, 75 MBps internet

Topic: ERROR: ConnectBlock: Consensus::CheckBlock: bad-txnmrklroot, hashMerkleRoot mism (Read 351 times)