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Hi all! Running a Geth PoA (Clique) node - private chain on AWS.

upon reboot have lost last 6 weeks worth of blocks (about 1.5m blocks) - my understanding this is due to our blocks being lightweight enough to be stored in cache, it seems current workaround people use is to gracefully restart nodes on daily basis to make sure they dump state from RAM to HD

anyway, on the same node after reboot keeps repeating "😱 block lost" messages

Google hasn't rendered anything useful. Has anyone stumbled upon same issue?

0x3845c67DcB97ec8B45304457cB39d34aE7E915F7 can i get s0ome test eth ? anyone ? PLEASEEEEE
Let's explore ways we might be able to help each other grow
Mindaugas Rolius
Hello, my node on ropsten testnet is crashing when trying to sync, is there any ways to fix without resyncing?
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x1c0 pc=0xb2200f]
goroutine 2304 [running]:
github.com/ethereum/go-ethereum/eth/downloader.(*Downloader).findAncestorBinarySearch(0xc002636700, 0xc001ddfc70, 0x1, 0xa2d955, 0x9f9671, 0x9f9671, 0x0, 0x156ebe0)
github.com/ethereum/go-ethereum/eth/downloader/downloader.go:966 +0x58f
github.com/ethereum/go-ethereum/eth/downloader.(*Downloader).findAncestor(0xc002636700, 0xc001ddfc70, 0xc0038b26c0, 0xc0038b2b40, 0x0, 0x0)
github.com/ethereum/go-ethereum/eth/downloader/downloader.go:818 +0x3a5
github.com/ethereum/go-ethereum/eth/downloader.(*Downloader).syncWithPeer(0xc002636700, 0xc001ddfc70, 0xe517c956b75143e0, 0xf3c8a586575d15ea, 0xdaf8486603b67a31, 0x55502068afd14354, 0xc0025ff8a0, 0x0, 0x0)
github.com/ethereum/go-ethereum/eth/downloader/downloader.go:475 +0x517
github.com/ethereum/go-ethereum/eth/downloader.(*Downloader).synchronise(0xc002636700, 0xc00338b1c0, 0x40, 0xe517c956b75143e0, 0xf3c8a586575d15ea, 0xdaf8486603b67a31, 0x55502068afd14354, 0xc0025ff8a0, 0xc000000001, 0x0, ...)
github.com/ethereum/go-ethereum/eth/downloader/downloader.go:431 +0x3b0
github.com/ethereum/go-ethereum/eth/downloader.(*Downloader).Synchronise(0xc002636700, 0xc00338b1c0, 0x40, 0xe517c956b75143e0, 0xf3c8a586575d15ea, 0xdaf8486603b67a31, 0x55502068afd14354, 0xc0025ff8a0, 0xc000000001, 0xd9a88e, ...)
github.com/ethereum/go-ethereum/eth/downloader/downloader.go:326 +0x8c
github.com/ethereum/go-ethereum/eth.(*handler).doSync(0xc0035ff700, 0xc06987e000, 0x1437c40, 0xc0099ce380)
github.com/ethereum/go-ethereum/eth/sync.go:324 +0x125
github.com/ethereum/go-ethereum/eth.(*chainSyncer).startSync.func1(0xc009951830, 0xc06987e000)
github.com/ethereum/go-ethereum/eth/sync.go:300 +0x38
created by github.com/ethereum/go-ethereum/eth.(*chainSyncer).startSync
github.com/ethereum/go-ethereum/eth/sync.go:300 +0x76
Can anyone tell me how to save some DAI and get the interest?
Xernes Technologies
can anyone send me some test ether.. my account is 0x4c4F78C0628A11E70a6912cA9093939Bcb0Ed22F
Xernes Technologies
Hi, I started downloading mainnet with a pretty average SSD (i.e gp3 AWS EBS), it was taking forever +1 week in fast sync mode ('Imported new state entries' is now at 'processed=865,640,323'), I have now switched to an NVMe SSD and copied across the geth directory so it can finish off the initialization. I was hoping it would zip right through it, however its still pretty slow. Should I start again or wait? Any suggestions....
Amazing Kid
Please can anyone gift me some testnet ETH
My address is 0xEe1C6bd1f76fF07106FDadd16FC382572C339f3f
Thanks in advance any good Samaritan 🙏🙏
Is it possible to get a genesis.json to run a private geth, what exactly should it look like after the berlin hard fork ?
femi omoshona
I need an help guys i try running my compile file and it give these error
compile error.PNG
Excuse me, can some one gift me some goerli test ETH please, my account is 0xF60bB0461F09aC1dfe41c2fb927C05065E878F4a, please🙏
Michail Lelyah
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is this channel just spam or is there anyone real here?
femi omoshona
I remove the 1 but still didn’t work as expected. The goal is of my compiling is to create two files which are campaign.json and campaignFactory.json inside the build folder, the build folder is right inside the ethereum directory.
i keep getting this error and i observed that it delete my build folder which is support to contain campaign.json and campaignFactory.json file
compile error.PNG

I used this code to provide allowance to an exchange address:

account = "0xA33E052b5891d26F8514613063CD7fA26398D2Da"
exchange = "0xDef1C0ded9bec7F1a1670819833240f027b25EfF"
contract = web3.eth.contract(web3.toChecksumAddress("0xc778417e063141139fce010982780140aa0cd5ab"), abi=contractABI)
tx_hash = contract.functions.approve(exchange, 200).transact({'from': account})
tx_receipt = web3.eth.wait_for_transaction_receipt(tx_hash)

and I got an error:

web3._utils.threads.Timeout: 120 seconds

Can anyone help?

Robert Burkhall
your node isn't running
Is it possible to get the full list of ERC-20 tokens?
Hello, guys. If anyone is good at smart contracts I was wondering about block global variable in contract. So question is what block.number returns? the block number that is already mined or the pending block number that is about to be mined?
Can i get the current working geth javascript console library reference
Does not work ?
Hello world

hello, core dev question:

During a balance update of an account, does the leaf of the trie gets updated with value or does a new set of nodes(or 1 node) gets generated and the hash of its parents up to the root gets updated? This does mean every balance update a new node is inserted in LevelDB or the value just get updated?
since if there is no node created then how do the history balance of the user in a specific block gets computed, OR if a new node is generated to preserve history, this does mean that every balance update which happen most often increases the size of leveldb.

Which one is correct?

Is anyone there? Please ask me. When I use the 'open-ethereum-pool' to mine, I find a block, but the height of the block has not increased. What's the situation
how get pendingTransactions with go?
James Bradford
What do you mean?
Subik Shrestha
How do I geth attach to a infura node?
free signals channel
Paul Bushfire
Hi here
i've got some machine with 2gb memory , it was mining but just with hundreds hashrate, anyone could help ?
Which VPS can be placed geth?
Ankit Joshi
Every time I start a node:
Fatal: Failed to create the protocol stack: datadir already used by another process
Any suggestions?
✅Join us if you are looking for Fundamental Analysis: https://t.me/Dapperlab
@AJONCODE looks like you have a geth process running already. You can find it via "ps aux | grep geth" for example
and then kill it and restart
or reattach to it
Hello guys, I need your assistance in any way you can be of help. I need to sort hospital bills for my mom and I’m at a present financial low. God bless you
Hello guys, I need your assistance in any way you can be of help. I need to sort hospital bills for my mom and I’m at a present financial low. God bless you. Please see my etherum wallet below: 0xaa5A3C34079CE6384A2E05868400f47284eaC97d
Hello guys, I need your assistance in any way you can be of help. I need to sort hospital bills for my mom and I’m at a present financial low. God bless you. Please see my etherum wallet below: 0xaa5A3C34079CE6384A2E05868400f47284eaC97d
Wink Saville
I'd like "validate" .ethereum/geth/chaindata/ to verify it's integrity and to compare against a second instance of .ethereum/geth/chaindata/ I have, how do I do that?
hello, for a private geth blockchain, shud the mining node be exposed to a DApp for connection? or a boot node?#I am currently exposing a miner URL . because of PoA algorithm, the miners are mining in turns and everytime the miner account changes. any suggestions on how to proceed?