Questions tagged [fast-sync]
Questions related to Geth's --fast feature which enables fast syncing through state downloads rather than downloading the full block data.
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25 views
Private blockchain losing access to older blocks
So, my private blockchain became out of sync and one of the nodes reset to block 0 – it then synced up with the other nodes. The node that went to block 0 is the node that is providing the rpc port ...
0
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1answer
178 views
Help with Syncing Geth: 1.8.23
I am not sure if I'm alone in this but it seems that the latest Geth client is very slow.
I tried posting the issue on Geth's github page but it got closed almost immediately and no one is replying ...
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0answers
24 views
Geth not download certain block number
I'm running a testnet geth node in fastmode and I have a worker that will check the transaction data in the blocks. However, I noticed that geth jumped from block 4990417 to 4990429, skipping the ...
0
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1answer
26 views
Geth syncing fast Ropsten too long delays between importing new segments
i have a problem with my Geth Ropsten node.
Time between importing new segments of chain is too long.
For example logs from my docker container below
geth-testnet_1_6d184080c9e1 | INFO [02-11|13:30:...
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0answers
37 views
State verification during full sync
How does the state verification work when doing a full sync from scratch?
Does the state get generated locally for each block using the transactions downloaded (in the transaction trie) and then ...
1
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1answer
78 views
What are the benefits of ethereum 'archive' sync mode and who should use it?
We have set up a private Ethereum node for our blockchain application connected to the mainnet. The node runs on a server with 2TB SSD, 4 CPU and 6GB memory. It's been syncing for about a week and is ...
0
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1answer
18 views
Drawbacks Query Logs of Parity Node in Fast Mode
We need to query all the past transfer events of a contract to identify all historic token holder addresses. Am I right that for this we need a full node and can't use fast mode?
I've read that fast ...
1
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1answer
30 views
Getting the last synced block is 0
I am trying to get last synced block but it always 0.
So I have run
geth --syncmode fast -cache 4096 --rpc
Here is a logs
INFO [12-19|09:47:50.058] Imported new state entries count=...
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1answer
57 views
Known states for testnet on fast sync mode Nov - 2018
Whats the current knownStates for testnet on fast sync mode Nov - 2018
Is there an online service which provides the current states of the ethereum testnet.
It been several days and --testnet fast ...
1
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1answer
73 views
Current Storage requirements
Very new to this. following teething problems and multiple restarts I'm running a fast sync with max cache.
I'm starting to down load the block chain in fast syncmode, whats the current storage ...
1
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0answers
236 views
Total number of state entries
I am syncing my ethereum blockchain using the default syncmode. I want to know how many total state entries are there because currently the highest block is 6544578 and the number of pulled states i.e....
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0answers
58 views
Ethereum geth node sync problem
I have to ethereum geth node runing as testnet syncmode=full on aws both running on same hardware and bandwidth why one is syncing very slow and other one is syncing fast?
and if I will stop the ...
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1answer
48 views
Retrieving transaction hash in all blocks after fast sync
I have set up an ethereum node using fast syncmode. I want to retrieve all the transaction hashes and the recipient between a range of blocks, let's say 0 - 13000. Will I be able to retrieve the ...
1
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1answer
277 views
What is the GB size and time to sync for geth in september 2018
How long does it take? What is the Size?
3
votes
2answers
149 views
Why does geth Sync get very slow around 4 million blocks
I am fast syncing geth, and at block 4080496 it started to sync very slow. Those 4 million blocks took about 45 minutes to sync.
In the last 4.5 hours I have got to 4081691, about 1200 in 4.5 hours.
...
2
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1answer
249 views
Ethereum chain data size (GETH w fast sync)
Etherscan provides this statistics, about the chain data size with fast synchronization. I cannot understand if it refers only to the blockchain size (i.e. block headers + block bodies, i.e. ...
1
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0answers
72 views
Official data about synchronization time
Are there in the literature or from the Ethereum community/foundation any official benchmark about geth (or any other client, e.g. parity) initial synchronization time (with both fast and normal sync)?...
4
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1answer
1k views
geth 1.8.15 flag provided but not defined: -fast
Geth version I have:
Version: 1.8.15-unstable
Architecture: amd64
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.11
Operating System: linux
GOPATH=
GOROOT=/usr/local/go
go version:
$ ...
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0answers
30 views
can erc20 token transaction work on Fast Sync-ed node ? OR it need Full node to transact any token?
I need help regarding couple doubts.
Which sync method is good for me. My client is asking me to make an Exchange website. Also ERC20 tokens will get transacted in this exchange.
Do I need a full ...
1
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0answers
197 views
Is it possible to download the Ethereum state trie and state database on their own?
I want to download a more or less recent version of the Ethereum state trie and state database, i.e. some version from within the last 1000 or so blocks. I know that I could set up a full node and let ...
1
vote
2answers
219 views
Why does the mainnet download take a long time? How can I improve this? [duplicate]
We have been working on integrating a ETH node to our e-wallet to enable ether transactions. We completely build the platform by connecting to a private Ethereum network.
Now everything is ready to ...
0
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1answer
148 views
slow syncing Ethereum blockchain
I used
VM in Azure(1TB SSD, 16GB RAM,Intel(R) Xeon(R) CPU E5-2673 v3 @ 2.40GHz).
Install geth.exe
Run geth --fast --datadir F:\Ethereum in cmd
blockchain still downloading it's almost more than 5 ...
1
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0answers
142 views
Parity: with 'warp' sync enabled by default, is there still any advantage in using fast pruning?
From Parity Ethereum Documentation:
Warp Sync is an extension to the Ethereum Wire protocol, which involves sending snapshots over the network to get the full state at a given block extremely ...
0
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0answers
80 views
How to make geth keep states for the last 10000 blocks instead of 128
If I understand it correctly, geth preserves states for the last 128 blocks and prunes states for all other blocks. I would like to keep states for a bigger number of last blocks, say 10000 blocks. Is ...
0
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1answer
59 views
How do I deploy a contract when my blockchain isn't syncing?
I would like to deploy a smart contract using truffle but I got problems while syncing the etherum blockchain. There are always blocks left and the syncing process is never finished. I don't want to ...
0
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1answer
700 views
Do you have to download all 'Imported new state entries' before syncing with the highest block?
I'm new to Geth...
I'm performing a fast sync using the following command:
geth --syncmode "fast" --cache 4096
I had been downloading block data until about 1000 blocks from the highestBlock. Then ...
1
vote
1answer
657 views
Parity sync time April 2018 - many days normal?
I am trying to set up an Ethereum node. I have tried with both geth and Parity and they both seem to be taking several days. I am on a high-end system with fiber internet, so I am wondering if this is ...
0
votes
1answer
253 views
How do i know if my sync is in fast mode? [duplicate]
I entered "geth" command from my powerShell comandline. There was no ChainData directory.
I am running Windows 10 64 bit. I downloaded Geth v1.8.3 for windows 64 bit
The machine has 250 GB SSD. The ...
3
votes
1answer
735 views
geth rewinds chain on every startup
I'm using geth to connect to the rinkeby network with fast sync. However, every time I restart geth I receive the following output:
Maximum peer count ETH=25 LES=0 total=25
...
1
vote
3answers
974 views
Geth not syncing
Apparently my installation of Geth breaks after some day of working, and log is not clear to me:
WARN [03-16|12:50:49] Synchronisation failed, retrying err="state node 266e74…51868f failed ...
0
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0answers
80 views
Get highest block number when --syncmode=fast
I have an utility that scan blocks back to obtain ranges of block in the last hour/day/month. I In order to do so I have to know the latest block to start the scan. Unfortunately this information is ...
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0answers
346 views
Why my Node's last block is always behind etherscan's?
I'm running Geth 1.8 on Ubuntu 16.04 / 3GB / SSD
eth.blockNumber->highestBlock is always behind the Etherscan's block number. As by the time of writing eth.syncing shows:
{
currentBlock: 5242584,
...
2
votes
1answer
2k views
Do we have a full archive node after a geth fast sync?
I have read the comments in PR for the fast sync and I am a little bit confused that Péter Szilágyi is stating that after a fast sync the user will have a full archive node with all historical states.
...
1
vote
1answer
1k views
Very slow Ethereum sync
I was around block 2.5 million on a "full" sync and I think it would've taken months to fully sync. At times the blockchain grew faster than my computer was syncing.
I moved that directory over to a ...
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0answers
756 views
eth.getBalance() return 0 though fully synced [duplicate]
So I stopped geth, deleted all files from ~/Library/Ethereum/geth/chaindata, and restarted geth with --fast --rpc and waited for like 24h, and have like 53GB of ldb files now. I used to run eth....
4
votes
1answer
507 views
Full node sync only preserve the last 128 history states
While researching on the different sync modes and their behaviors, I learned that geth full sync will replay all transactions from the genesis and preserve all history states, while fast sync will ...
2
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0answers
431 views
fast syncing has completed, yet eth.blockNumber still returns 0
I've ran a fast sync via
geth --syncmode "fast" --cache 1024
After running for about 12 hours (didn't think fast sync should take that long!) "eth.syncing" finally returns
false
which I'm led ...
3
votes
1answer
3k views
Optimal sync mode for running an ethereum node that can process transactions
I need to run a local ethereum node, I've downloaded mist wallet but I've had some issues. I have to redownload the whole blockchain again, and I noticed that the problems I had could be related to ...
0
votes
1answer
57 views
For production dApps, what kind of sync should be done on server node?
I plan to use web3 server side using NodeJs with geth. For production usage, should I do a full sync or fast sync is enough?
Also, how much space do I need to store the blockchain data for each of ...
0
votes
1answer
70 views
I'm new to compiling solidity code, is there a way to make it easier/faster? I think I'm doing wrong
1.- I connect to Geth to download the blockchain.
2.- Geth starts downloading.
3.- Once the chain is downloaded I open Mist wallet.
4.- Mist Wallet opens and there I can compile my contracts ...
11
votes
3answers
3k views
Geth disk and memory performance analysis
A week ago I started a synchronization of a geth node with these parameters:
--fast --cache=1024 --rpc --rpcaddr "0.0.0.0" --ws --wsaddr "0.0.0.0" --wsorigins="*"
The result that I have obtained is ...
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1answer
282 views
Does fast sync download all past event logs?
If I do a fast sync when connecting to Ethereum the first time, will all past Events (written into smart contracts) be downloaded along with the block headers?
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0answers
99 views
Block Sync Progress
There is no block number listed like others I've seen. At first thought it was processed but that number is impossible? Also running eth.syncing doesn't work since blockchain is not yet fully ...
2
votes
1answer
762 views
Geth Light Sync functionality
If I use the light version of geth sync, can I make a token & deploy contracts using that? The light client "gets only the current state", from that point onwards or everytime I query the ...
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1answer
878 views
What is bloombits?
I'm syncing my node with geth and I used the light mode.
>start geth --syncmode "light"
Then a parameter type="bloombits" appeared. What is bloombits?
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2answers
438 views
When running geth to sync a full node, what is the meaning of cache and handles?
What does it means:
cache=128 handles=1024
how to change those values?
0
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1answer
299 views
Why 'web3.eth.syncing' (Truffle console) returns 'false' when actually the testnet is running?
I run the ethereum testnet using the following command
geth --testnet --syncmode "fast" --rpc --rpcapi db,eth,net,web3,personal --cache=1024 --rpcport 8545 --rpcaddr 127.0.0.1 --rpccorsdomain "*" --...
-1
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0answers
192 views
Node syncing process start again from 1st block
I'm using geth command to sync ethereum database from blockchain with --fast --cache=1024
geth --fast --cache=1024 --mine --rpc --rpcaddr --rpcport 8545 --rpcapi "personal,eth,web3,net"
It stops ...
0
votes
1answer
160 views
Mandatory to do a full sync for token creation and contract deployment?
As the heading says, is it mandatory to do a full sync for token creation and contract deployment?
I have downloaded the etherelum wallet and geth, and right now it is syncing as I write this post. ...
4
votes
2answers
3k views
Status of Ethereum Sync using Geth for Beginners
I am new to ethereum and right now getting the ethereum blockchain using geth with syncmode=fast and cache=5120
It's been quite some time the sync being running (about 24 hours) and still the process ...
