Ethereum: debug.traceTransaction debugging on full node not working
As a full node developer, you are probably no stranger to running Ethereum nodes and examining their internal state. However, when you try to use the debug.traceTransaction command on a full node, you may encounter unexpected behavior or errors.
In this article, we will explore the details of the issue and provide a step-by-step solution to help you resolve the issue.
Problem
When using debug.traceTransaction, you must pass the transaction ID as an array argument. In your case, the error message indicates that the node cannot process the transaction due to the missing argument:
“TypeError: Cannot read property ‘address’ of undefined.”
This error occurs because the debug command expects the transaction ID to be an integer value, but you are passing it as an array.
Troubleshooting Steps
To resolve this issue, follow these steps:
- Check Node Configuration: Verify that your node is fully configured to use the correct API version. The default API version for full nodes is 4.x, but in your case you may be using an older version.
- Check Transaction ID: Double-check that the transaction ID (in this case,
0x4883a2cd5a260723ae65b88787d153864938e0cf0b811bc0597a80e3e820777a) is correct and matches the expected format.
- Check for spelling or formatting errors
: Start the node with the following command:
node --debug-full --network=mainnet --miner=eth2 --max-params 20000 --rpc-pools=4 --rpc-timeout=100000 --rpc-blockstore=uniswap-v2-rpc --rpc-api-version=4.
This will help you identify typos or formatting errors in the transaction ID.
- Check the internal state of the node: Use the
debug.geth callto inspect the internal state of the node and verify that it matches the expected result for a successfuldebug.traceTransaction. For example:
node --debug-full --network=mainnet --miner=eth2 --max-params 20000 --rpc-pools=4 --rpc-timeout=100000 --rpc-blockstore=uniswap-v2-rpc --rpc-api-version=4.
call geth debug.traceTransaction '0x4883a2cd5a260723ae65b88787d153864938e0cf0b811bc0597a80e3e820777a'
This should print the expected transaction information, including the ID and associated data.
Solution
If the above steps do not resolve the issue, try updating your node to the latest version using “geth update”. Additionally, make sure you are using a compatible version of the Ethereum client.
By following these steps, you should be able to fix errors and resolve any issues related to the debug.traceTransaction command on your node. complete.