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Questions tagged [reindex]

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4
votes
1answer
37 views

Can bitcoin core verify a third party blockchain download?

If you were to obtain a copy of the bitcoin blockchain, i.e. a copy of someone's data dir excluding his wallet files on a removable drive or other storage medium, could bitcoin core verify that or not?...
0
votes
1answer
17 views

Does bitcoind re-index or reverify downloaded blocks upon startup?

If so is there a way to prevent this from happening?
0
votes
1answer
58 views

Bitcoin Core 'unable to open file' causes reindexing to fail

I recently struggled to send bitcoin from my Armory wallet (0.96.5) to another account. Sending bitcoin did not work because the wallet could not synchronize with the blockchain. Since Armory relies ...
1
vote
1answer
104 views

Txindex=1: how to recognise the blockchain with this option?

This might be a dumb question: I started the Bitcoin daemon for an initial blockchain download. It immediately started downloading, I edited the Bitcoin.conf file with txindex=1. Stopped and restarted ...
2
votes
1answer
157 views

LoadBlockIndexDB: transaction index disabled

I'm trying to run bitcoind on a Raspberry Pi 3 but I'm stuck on an error. The raspberry has a Hdd for storage with a fully indexed blockchain that was synced on my laptop and than copied to the Hdd (...
1
vote
0answers
64 views

Even with dbcache=7000 and 16 core processor. Why does -reindex-chainstate take more than 24+ hours?

My computer got shut off due to a power outage and when I rebooted my bitcoin core it was stuck on connecting to peers. I was told to do a -reindex-chainstate with dbcache set as high as possible. ...
1
vote
0answers
79 views

It's October 2018. ./bitcoin-qt -reindex-chainstate takes forever. Is there a way to speed this up?

Current version: Bitcoin Core 0.16.3 I think I have a corrupted blockchain download as my VM box was shut down in the middle of syncing. Which is why I'm doing a -reindex-chainstate I have the ...
1
vote
1answer
99 views

Fixing “Block not found on disk” rpc error

I have a full node with txindex enabled that I've been trying to use for an electrum server. However, whether I use ElectrumX or Electrs, I hit the same error on initial indexing of "Block not found ...
2
votes
1answer
295 views

Issue with getrawtransaction txindex and reindex

I am running Bitcoin Core Deamon version v0.16.0.0 on Ubuntu and need to call the getrawtransaction command for some TX. To use the getrawtransaction I need to run bitcoin core with txindex=1. But ...
2
votes
1answer
875 views

Bitcoin Core - Go back to a specific block?

I have a full node of Bitcoin Core wallet. I would like to know if it's possible to delete data after a certain block. For example Bitcoin is currently at block 504385. There was a fork around block ...
2
votes
0answers
2k views

How to recover corrupted Bitcoin-Core blockchain?

I recently experienced a I/O error resulting in data block corruption or index corruption cause bitcoin-qt wasn't quitting so I forced bitcoin core to shutdown without killin it properly. I checked ...
1
vote
0answers
77 views

Bitcoin Core on SD card

Running out of hard drive space, I bought a 256 GB SD card formatted with the FAT filesystem and moved my Bitcoin directory to it. After getting error messages I decided to delete it and redownload (...
2
votes
1answer
1k views

Bitcoind --reindex vs starting allover again

I setup a Bitcoin Daemon on a VM hosted on an OpenStack cloud. VM has 8 Cores and 32GB of Ram and 20GB of storage. I mounted a 1TB volume into the .Bitcoin/blocks folder. I started bitcoind and it ...
17
votes
1answer
6k views

When should I use -reindex-chainstate and when -reindex

What is the difference between the options -reindex and -reindex-chainstate? Is one of the options faster? When should each option be used?
0
votes
1answer
413 views

How long to -reindex -dbcache=2048 with txindex = 1?

i have fullnode with lastest block 130GB. I want txindex=1 and i need run with -reindex and -dbcache=2048 for speed reindex. How long duration of process ? My server is jelastic 10/250, now 18 MHz. I ...
5
votes
1answer
2k views

Bitcoind, change to txindex=1

I have a fullnode without txindex. Some transactions of mine related to my wallet are not being found by fullnode, only in blockchain.info. My HD is around 130GB, and it's fully synced to the last ...
1
vote
0answers
296 views

Why does “pre-allocating…” still happen during -reindex?

I thought -reindex read blocks from disk to rebuild the index, without downloading the chain from the network. If that's so, why is bitcoind allocating memory in the files on disk? Like this: Pre-...
1
vote
1answer
209 views

Is txindex=1 necessary in the latest versions?

A few months back when I wanted to use getrawtransaction API call on any txid other than my bitcoin core wallet it would return an error. The error was resolved by adding txindex=1 to the conf file ...
1
vote
0answers
257 views

Bitcoin-qt requesting reindex on already indexed blockchain data directory

To save time, I synced the blockchain on my laptop for import to my Raspberry Pi node. I had set txindex=1. When setting txindex=1 on my Raspberry Pi and pointing the data directory to my previously ...
4
votes
3answers
378 views

How much extra disk space does txindex=1 require?

For example for a 1 MB block, does the extra Tx index database take up another 100 kB on average? And a follow-up: once my node has completed -reindex after setting txindex=1 can I COPY the ...
6
votes
1answer
8k views

What exactly did `Bitcoin-Qt -rescan -reindex` do?

I spent a ton of time today trying to get Bitcoin-Qt to sync using the bootstrap.dat file and could not get it to work. I found an answer on this forum saying to use: /Applications/Bitcoin-Qt.app/...