in ethereum based private network, transaction are still pending. why this transaction does not complete ? below is information dumped from the console.

  pending: {
    0x5Cf70Fa5984683659dd661A4408C807a02C318C1: {
      0: "0x960b8fEc9f9C909878aC651113f833E99242338f: 50000000000000000000 wei + 121000 gas × 18000000000 wei"
  queued: {}

0: {
        blockHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
        blockNumber: null,
        from: "0x5cf70fa5984683659dd661a4408c807a02c318c1",
        gas: "0x1d8a8",
        gasPrice: "0x430e23400",
        hash: "0xae26b46b73a0f9ee1da088bc66dc092a297584302a40cc3d2cf33e23b0833cee",
        input: "0x",
        nonce: "0x0",
        r: "0x9bdeaddaf2056a886b66b62e388cb1f3935c9cf4f003516607676681bc17caa4",
        s: "0x250109163780fd123258f20068f6f1a98224802f16b64585832aa6e5d83ad0",
        to: "0x960b8fec9f9c909878ac651113f833e99242338f",
        transactionIndex: "0x0",
        v: "0x3c30",
        value: "0x2b5e3af16b1880000"
  • how are you running your private network ? Apr 19, 2018 at 13:42
  • Since nonce is zero it is the first transaction from that account. One possibility is the balance in that account is not enough to pay for the transaction.
    – Ismael
    Apr 19, 2018 at 21:13

1 Answer 1


This is porbably due to nonce problems and synchronization between the RPC caller and the geth node. If you are trying to send many transactions in a short time, this is likely to happen.


If you try and send many transactions without managing nonce yourself in a short amount of time, it is possible that a transaction gets sent with the same , higher or less nonce as a previous one which will cause the previous transaction to stay in the tx pool for ever or get refuted. The miss calculation of nonce is due to web3 nonce guessing mechanism or any other framework that does that.

An other point : If you don't run any miner ( or any kind of block maker ) node within your network, you will not be able to make any blocks. So the transactions stay in the txpool untill they get mined ( when a miner or maker node joins in )

  • 2
    can you go into more depth on your comment above regarding whether it is a private blockchain? if so, do you know what parameter is causing the bottleneck?
    – JC_92
    May 11, 2018 at 10:42

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