lotus/documentation/en/mining-lotus-seal-worker.md

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# Lotus Seal Worker
The **Lotus Seal Worker** is an extra process that can offload heavy processing tasks from your **Lotus Storage Miner**. The sealing process automatically runs in the **Lotus Storage Miner** process, but you can use the Seal Worker on another machine communicating over a fast network to free up resources on the machine running the mining process.
## Note: Using the Lotus Seal Worker from China
If you are trying to use `lotus-seal-worker` from China. You should set this **environment variable** on your machine:
```sh
IPFS_GATEWAY="https://proof-parameters.s3.cn-south-1.jdcloud-oss.com/ipfs/"
```
## Get Started
Make sure that the `lotus-seal-worker` is compiled and installed by running:
```sh
make lotus-seal-worker
```
## Setting up the Storage Miner
First, you will need to ensure your `lotus-storage-miner`'s API is accessible over the network.
To do this, open up `~/.lotusstorage/config.toml` (Or if you manually set `LOTUS_STORAGE_PATH`, look under that directory) and look for the API field.
Default config:
```toml
[API]
ListenAddress = "/ip4/127.0.0.1/tcp/2345/http"
RemoteListenAddress = "127.0.0.1:2345"
```
To make your node accessible over the local area network, you will need to determine your machines IP on the LAN, and change the `127.0.0.1` in the file to that address.
A more permissive and less secure option is to change it to `0.0.0.0`. This will allow anyone who can connect to your computer on that port to access the [API](https://docs.lotu.sh/en+api). They will still need an auth token.
`RemoteListenAddress` must be set to an address which other nodes on your network will be able to reach.
Next, you will need to [create an authentication token](https://docs.lotu.sh/en+api-scripting-support#generate-a-jwt-46). All Lotus APIs require authentication tokens to ensure your processes are as secure against attackers attempting to make unauthenticated requests to them.
### Connect the Lotus Seal Worker
On the machine that will run `lotus-seal-worker`, set the `STORAGE_API_INFO` environment variable to `TOKEN:STORAGE_NODE_MULTIADDR`. Where `TOKEN` is the token we created above, and `STORAGE_NODE_MULTIADDR` is the `multiaddr` of the **Lotus Storage Miner** API that was set in `config.toml`.
Once this is set, run:
```sh
lotus-seal-worker run --address 192.168.2.10:2345
```
Replace `192.168.2.10:2345` with the proper IP and port.
To check that the **Lotus Seal Worker** is connected to your **Lotus Storage Miner**, run `lotus-storage-miner workers list` and check that the remote worker count has increased.
```sh
why@computer ~/lotus> lotus-storage-miner workers list
Worker 0, host computer
CPU: [ ] 0 core(s) in use
RAM: [|||||||||||||||||| ] 28% 18.1 GiB/62.7 GiB
VMEM: [|||||||||||||||||| ] 28% 18.1 GiB/62.7 GiB
GPU: GeForce RTX 2080, not used
Worker 1, host othercomputer
CPU: [ ] 0 core(s) in use
RAM: [|||||||||||||| ] 23% 14 GiB/62.7 GiB
VMEM: [|||||||||||||| ] 23% 14 GiB/62.7 GiB
GPU: GeForce RTX 2080, not used
```
### Running locally for manually managing process priority
You can also run the **Lotus Seal Worker** on the same machine as your **Lotus Storage Miner**, so you can manually manage the process priority.
To do so you have to first __disable all seal task types__ in the miner config. This is important to prevent conflicts between the two processes.
You can then run the storage miner on your local-loopback interface;
```sh
lotus-seal-worker run --address 127.0.0.1:2345
```