Bitcoin .11 Initial Blockchain Download Problem

[jeloib]

I have ping times ranging from 50-800 ms on my eight outbound peers. So I don't think that is a problem.

It appears there is synching occurring but there is a disconnect with my blockchain. After putting in the time to try and resolve this issue I would rather not go down another rabbit hole. Is there anything I can do to get my blockchain to reflect the recently downloaded activity.

[jeloib]

My saga continues. I thought reindexing was the answer to my problems. I entered /Applications/Bitcoin-Qt.app/Contents/MacOS/Bitcoin-Qt -reindex into my terminal. Everything was going fine for a while until Bitcoin crashed. I keep getting "Error reading data from database."

Now I am stuck in reindexing with Bitcoin continually crashing. Would someone point me to straightforward instructions on uninstalling/reinstalling the Bitcoin-QT while maintaining my existing keys? Do I just need to pull out my wallet.dat file?

I also tried importing my wallet.dat file into Blockchain.info in hopes to simply drop QT altogether but I keep getting connection refused. Isn't it looking for my encryption passphrase when it requests a password? Please someone help b/c I am about to throw my computer out the window.

[achow101]

This is odd. Can you post a copy of the Debug log here? That might be able to help.

[jeloib]

The debug log is huge. Would you let me know what specifically to look for in there?

[achow101]

The debug log is huge. Would you let me know what specifically to look for in there?

There isn't anything really specific, it is just looking through it for anything that indicates database errors and shutdown. At least post everything from the last run of bitcoin core if you don't want to post everything.

[jeloib]

Here is the log right before it shut down again.

2015-09-19 18:53:58 LoadExternalBlockFile: Processing out of order child 000000000000007e163d3c7e43d39c5616e334249e3584dfbed7b9266f5e818a of 000000000000013e3836ba653f5b31c02bcadd70b1b1b8d0eacf89ab927360f2
2015-09-19 18:53:58 LevelDB read failure: Corruption: block checksum mismatch
2015-09-19 18:53:58 Corruption: block checksum mismatch
2015-09-19 18:54:18 Error reading from database: Database corrupted

Would you let me know specifically what I need to do uninstall/reinstall while saving my keys? Do I simply need to save my wallet.dat file and reinsert into ~/Library/Application Support/Bitcoin/ after reinstall?

[achow101]

Here is the log right before it shut down again.

2015-09-19 18:53:58 LoadExternalBlockFile: Processing out of order child 000000000000007e163d3c7e43d39c5616e334249e3584dfbed7b9266f5e818a of 000000000000013e3836ba653f5b31c02bcadd70b1b1b8d0eacf89ab927360f2
2015-09-19 18:53:58 LevelDB read failure: Corruption: block checksum mismatch
2015-09-19 18:53:58 Corruption: block checksum mismatch
2015-09-19 18:54:18 Error reading from database: Database corrupted

The problem is that second to last line.

This could be a hardware error like your hard drive failing. Run some hardware diagnostics to check that.

Would you let me know specifically what I need to do uninstall/reinstall while saving my keys? Do I simply need to save my wallet.dat file and reinsert into ~/Library/Application Support/Bitcoin/ after reinstall?

You only need the wallet.dat file.

[shorena]

-snip-
I also tried importing my wallet.dat file into Blockchain.info in hopes to simply drop QT altogether but I keep getting connection refused. Isn't it looking for my encryption passphrase when it requests a password? Please someone help b/c I am about to throw my computer out the window.

They no longer offer that service. The site is still there but the script behind it was removed.

You would have to export the private keys yourself.

[jeloib]

The initial synchronization is beginning to be a hassle so I thought I might get my private key and transfer my wallet to Blockchain.info.

I followed the directions in [How do I export my private keys from my Bitcoin-QT?] to get my private key. All I get back for dumpprivkey[] is Invalid Bitcoin address (code -5). I thought maybe I had the wrong address so I entered listreceivedbyaddress 0 true.

There are only a couple of addresses since I have a new wallet. All of the addresses returned the same Invalid Bitcoin address. What is going on? I know one of these addresses was used to give to an exchange for my new BC. Is it simply because my blockchain is incomplete and the transaction is incomplete?

[achow101]

The initial synchronization is beginning to be a hassle so I thought I might get my private key and transfer my wallet to Blockchain.info.

I followed the directions in [How do I export my private keys from my Bitcoin-QT?] to get my private key. All I get back for dumpprivkey[] is Invalid Bitcoin address (code -5). I thought maybe I had the wrong address so I entered listreceivedbyaddress 0 true.

There are only a couple of addresses since I have a new wallet. All of the addresses returned the same Invalid Bitcoin address. What is going on? I know one of these addresses was used to give to an exchange for my new BC. Is it simply because my blockchain is incomplete and the transaction is incomplete?

If your wallet is locked you will need to use the walletpassphrase command before dumping the private keys to unlock the wallet.

[jeloib]

My wallet was unlocked before I did the dumpprivkey[] call. Yet, I still got the Invalid Bitcoin address (code -5).

I went to Blockchain.info to find the right address. It lists:

Total Transactions = 1
Total Received = amount of my BC transaction
Total Balance = amount of my BC transaction

Why Bitcoin-QT telling me my address code is invalid when Blockchain.info recognizes it? Why does Blockchain list BC received when I have not completed the transaction so to speak?

[shorena]

My wallet was unlocked before I did the dumpprivkey[] call. Yet, I still got the Invalid Bitcoin address (code -5).

I went to Blockchain.info to find the right address. It lists:

Total Transactions = 1
Total Received = amount of my BC transaction
Total Balance = amount of my BC transaction

Why Bitcoin-QT telling me my address code is invalid when Blockchain.info recognizes it?

Not sure, might be a typo issue. Make sure its as below, just with your address.

dumpprivkey 1EaNWN7iLpEFS6EtRw1EajssLgaXW5FBf2

Why does Blockchain list BC received when I have not completed the transaction so to speak?

The transaction is completed without your wallets knowledge. Your local copy does not matter. Thats why you can export the private key and use it elsewhere.

[jeloib]

Oops! I was using the [] when entering the address. Your response fixed the problem and gave me the private key.

So far I am successfully downloading Bitcoin-QT on another computer. I have about a year of blocks left to download. Thank you for all of your support. I didn't not do a good job of researching this wallet beforehand. Other than it was the most secure.