[Ethereum] How to attach ethminer to parity node

ethminerparity

I have accomplish to add a parity node to the private network with the help of this valuable guide: https://ethereum.stackexchange.com/a/13035/4575

Now I would like to attach ethminer to my parity node, in order to do mining. Please note that my parity node successfully run on the background, as connected to my private chain. Also did rm -rf .ethash/.

[$] cpp-ethereum/build/ethminer/ethminer -F http://localhost:8545

Error:

miner  13:13:13.230|  Getting work package...
  ✘  13:13:13.231|  Failed to submit hashrate.
  ✘  13:13:13.231|  Dynamic exception type: jsonrpc::JsonRpcException
std::exception::what: Exception -32601 : METHOD_NOT_FOUND: The method being requested is not available on this server: Method not found

[Q] How could I fix the error I am facing?

=> Also when I attach geth to parity, it does not see miner.start() command.

Note:
The way I installed ethminer:

[$] git clone --recursive https://github.com/ethereum/cpp-ethereum.git [$] cd cpp-ethereum

Build:
[$] cmake -H. -Bbuild [$] cmake --build build

[$]ethminer --version
 ethminer version 1.3.0 | Build: ETH_BUILD_PLATFORM/ETH_BUILD_TYPE

Please note that similar question asked but has not been covered well. ethminer Failed to submit hashrate
Thank you for your valuable time and help.

Best Answer

Don't use cpp-ethereum, it's barely maintained. Use Genoil-ethereum for mining.

Enable stratum support with parity --stratum, also make sure you set an author with --author <your-address> and optionally change the --stratum-port to anything you like (default 8008). Long example:

parity --author 0037a6b811ffeb6e072da21179d11b1406371c63 --stratum --stratum-interface=0.0.0.0 --stratum-port=9009

Then point your ethminer (genoil) to your localhost at :8008, i.e.,

ethminer -S 127.0.0.1:8008

Update as per comments: If your ethminer does not support -S (stratum), you need to set the --rpccorsdomain localhost to allow getwork mining via jsonrpc with -F 127.0.0.1:8545.

Disclosure, I work for parity.

Related Solutions

[Ethereum] How to stop Parity node cleanly

The answer is: Ctrl+C+Patience.

However when I check for processes running, I still see the process running.

I can reproduce this behaviour. The problem is the client processing a network DoS attack. It had been spammed for several weeks. You need to wait for a couple of minutes. Sometimes 10-15.

Yesterday (Oct-19, 2016) was a hard fork to mitigate that attack by increasing gas costs for several operations. After block 2,463,000 your synchronization process will go back to normal and Ctrl+C will work without the magic Patience component.

[Ethereum] How to mine with Ethminer with parity enode

You'll probably want to set the destination address (where the rewards go). If you have an address already, great. If you don't, then you can make one in Parity with:

 $ parity account new
Please note that password is NOT RECOVERABLE.
Type password: 
Repeat password: 
ff25a05f8be3d4c9c58d35bd32cdbe4edd6515e6

You'll be asked for a password and be given an address. Once done, you should run parity and tell it to mine to that address when required. Supposing your address is ff25a05f8be3d4c9c58d35bd32cdbe4edd6515e6, then you would run:

$ parity --author ff25a05f8be3d4c9c58d35bd32cdbe4edd6515e6

Once Parity is running and synced with the network, you can start your miner of choice. For genoil, command would be:

$ ethminer -G

Where -G for GPU mining (opencl).

Since 1.6, Parity offers Stratum protocol support (beta). This protocol has number of advantages compared to the JSON-RPC polling, which results in better hashrate and less node strain. To run parity with Stratum on, use

$ parity --author ff25a05f8be3d4c9c58d35bd32cdbe4edd6515e6 --stratum

To utilize Stratum, miner also needs to be started in Stratum mode. For genoil, it will be

$ ethminer -G -S 127.0.0.1:8008

Best Answer

Related Solutions

[Ethereum] How to stop Parity node cleanly

[Ethereum] How to mine with Ethminer with parity enode

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