Mainnet AWS AMI

Mainnet AWS AMI:

AMI name: QuarkChain_Mainnet_Cluster_AMI

AMI ID: ami-0750b30fd2b17b65c

Region: Oregon

Step 1: Launch the AWS instance and open the port 38291 and 38391.

Step 2: If you use external mining machines, please open the JSON_RPC_HOST.

vim pyquarkchain/mainnet/singularity/cluster_config_template.json

Change "JSON_RPC_HOST": "127.0.0.1" to your external mining machine IP or "0.0.0.0"

Noted that "0.0.0.0" is open for any addresses. If a user wants to turn it on, the user should be responsible for the access control of the service, such as preventing it being used by the public via a firewall.

Step 3: Set the coinbase address.

export PYTHONPATH=/home/ubuntu/pyquarkchain
python3 pyquarkchain/quarkchain/tools/miner_address.py

You can use git diff to check the results.

git diff

Step 4: (Optional) If you want to download data quickly without validating the blocks, you can download a snapshot of the database by running the following command. Every 12 hours a snapshot of the database will be taken and uploaded by the QuarkChain team. Once you start your cluster using the downloaded database your cluster only need to sync the blocks mined in the past 12 hours or less.

curl https://s3-us-west-2.amazonaws.com/qkcmainnet/data/`curl https://s3-us-west-2.amazonaws.com/qkcmainnet/data/LATEST`.tar.gz --output data.tar.gz

Step5: Launch the mainnet cluster using the following command

cd pyquarkchain
python3 quarkchain/cluster/cluster.py --cluster_config $(pwd -P)/mainnet/singularity/cluster_config_template.json

Mainnet mining configuration

Chains	Hash Algorithm	Target Block Time
Root Chain	Ethash with Guardian	60 seconds
6 shards	Ethash	10 seconds
2 shards	Qkchash	10 seconds

For specifying shards in external_miner.py (-s or --shards)

Chain	Shard	Hash Algo	Parameter for external_miner.py
0	0	Ethash	1
1	0	Ethash	65537
2	0	Ethash	131073
3	0	Ethash	196609
4	0	Ethash	262145
5	0	Ethash	327681
6	0	Qkchash	393217
7	0	Qkchash	458753

GPU mining shard ID

Instructions for Ethash GPU mining

Chain	Shard	Hash Algo	Parameter for Ethminer shard ID
0	0	Ethash	1
1	0	Ethash	10001
2	0	Ethash	20001
3	0	Ethash	30001
4	0	Ethash	40001
5	0	Ethash	50001