Linked Questions

104
votes
4answers
102k views

What is Geth's "fast" sync, and why is it faster?

One of the answers to this question suggested using Geth's --fast flag to help quickly synchronise the block data. How does the flag work, and how does using it speed up the synchronisation? Are we ...
55
votes
5answers
89k views

How can I get a geth node to download the blockchain quickly?

I'm running a geth node on slow hardware. At the current rate of progress it could be several days before I can download all the blockchain. Is there a way to get it to synchronise more quickly?
21
votes
4answers
10k views

How can the transaction status from a thrown error be detected when gas can be exactly the same as the gasUsed for a successful transaction?

This question arose from answering Transaction Status. In the following example, I am sending gas of 21,000 (the amount required for a regular transaction). In this situation gas == gasUsed, and so ...
23
votes
4answers
16k views

How can I empty the blockchain?

I am trying to do a fast sync using geth --fast but I am getting this message: blockchain not empty, fast sync disabled How can I empty the blockchain to allow for fast sync?
25
votes
1answer
31k views

Geth node starts to sync from the beginning after fast sync

I have synced using the --fast command. Now how should I proceed? I tried stopping it, and then running geth --rpc but it says: Last Header #1311471 Last Block #0 Fast Block #1310224 What should I ...
5
votes
1answer
4k views

How to check the VM trace using Geth?

How to check the VM trace using Geth? I've ran geth with --verbosity 6, and stuff like this gets logged: I0525 01:26:12.418607 core/vm/vm.go:157] running byte VM b82addc7 I0525 01:26:12.419818 core/...
5
votes
2answers
5k views

Missing trie node only on some blocks > is it possible to resync a specific Block?

I'm trying to trace some transactions and I'm getting the "Missing trie node" warning only on some specific blocks, but not on others I've read a solution that suggests to delete the chaindata folder ...
4
votes
1answer
6k views

My geth node is taking ages to sync, can I still send ether?

It looks like I have to sync my blockchain at least until the block when my account was funded. Because as of right now the balance for my address is still zero. I'm runnig geth version 1.4.4-stable-...
4
votes
1answer
1k views

Synch stuck at block 2283419

Total newbie here. I am trying to get my blockchain synced again after the Geth Node issue of Sept. 18. I am stuck on block #2283419. I am running Mist 8.2 and Ethereum Wallet 8.2. Node connects ...
5
votes
2answers
820 views

Blockchain sync on geth stalls at block 1.1 million

I saw the responses on a few issues regarding ethereum and blockchain sync on this site, and was wondering if anyone could help me with a problem I'm facing. I've been trying to sync the blockchain ...
4
votes
1answer
103 views

Synchronisation failed Invalid old chain

I got this error "Synchronisation failed: Invalid old chain" I tried geth removedb and geth upgradedb but I got the same error again any help please?
0
votes
0answers
25 views

Deinstall geth builded from source completely together with the blockchain and every piece of data [duplicate]

I use Lubuntu 17.10. I have followed the steps in the tutorial to build geth from source. (here) I have abandoned the idea of mining ether with my crappy hardware. How can I deinstall the big fat ...