Creating a new contract via sendRawTransaction() dropped

Question

I have setup a private test network with geth 1.5.7 and am trying to create a new contract from my node.js app via sendRawTransaction(). I see the transaction created and txpool shows it as queued, but it never moves to pending list and silently disappears off of the queued list after a few blocks are processed. The same contract can be created just fine when I create it via the contract.new RPC approach.

I am pretty sure I am creating and signing the raw transaction correctly - in fact I believe it even worked a few times for one account but not another. Any ideas on how to debug this further? Thanks

Answer 1

Obvious things to look at would be:

• Check that you are setting the nonce correctly. If it works for a new account that has never sent a transaction but fails for an account that has already transacted, the nonce is probably the culprit.
• Check the gas price and maximum gas are the same as when you successfully send the transaction.

As for debugging, you should be able to get Geth to dump the transaction that you see briefly in its mempool, so try comparing that to the kind of transaction that goes through successfully.