[Documentation] Tx-fuzz exits with exceeds block gas limit

[bshastry]

Geth cmdline invocation:

geth --http --http.port 8545 --miner.gaslimit 800000000000000000

Tx-fuzz invocation (other options such as send, airdrop etc. run into same error):

./cmd/livefuzzer/livefuzzer spam
could not airdrop: exceeds block gas limit
exceeds block gas limit

Geth log

...
WARN [03-07|07:21:04.357] Served eth_sendRawTransaction conn=127.0.0.1:58318 reqid=4 t="671.196µs" err="exceeds block gas limit"

How could this be avoided so livefuzzer can continue fuzzing?

[radkomih]

@bshastry I did run into the same problem and I was able to get rid of the error by:

• in Geth, added genesis.json with enough balance for the account that is used to send transactions
• in tx-fuzz, changed the private key with the one corresponding to the address that is used to send transactions
• in tx-fuzz, changed the value to be sent, so that it doesn't run out of balance

// changed to SK corresponding to the address that is used to send transactions
sk := crypto.ToECDSAUnsafe(common.FromHex(txfuzz.SK2))

// big.NewInt(10) so it does not run out of balance
value := new(big.Int).Mul(big.NewInt(100000), big.NewInt(params.Ether)) 

{
  "config": {
    "chainId": 12345,
    "homesteadBlock": 0,
    "eip150Block": 0,
    "eip155Block": 0,
    "eip158Block": 0,
    "byzantiumBlock": 0,
    "constantinopleBlock": 0,
    "petersburgBlock": 0,
    "istanbulBlock": 0,
    "muirGlacierBlock": 0,
    "berlinBlock": 0,
    "londonBlock": 0,
    "arrowGlacierBlock": 0,
    "grayGlacierBlock": 0,
    "clique": {
      "period": 5,
      "epoch": 30000
    }
  },
  "difficulty": "1",
  "gasLimit": "800000000",
  "extradata": "0x00000000000000000000000000000000000000000000000000000000000000007df9a875a174b3bc565e6424a0050ebc1b2d1d820000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "alloc": {
    "b02A2EdA1b317FBd16760128836B0Ac59B560e9D": {
      "balance": "50000000000000000000"
    }
  }
}