139 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			139 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| # Frequently Asked Questions
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| 
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| Here are some FAQs concerning the Lotus implementation and participation in 
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| Testnet.
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| For questions concerning the broader Filecoin project, please 
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| go [here](https://filecoin.io/faqs/).
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| 
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| ## Introduction to Lotus
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| 
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| ### What is Lotus?
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| 
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| Lotus is an implementation of the **Filecoin Distributed Storage Network**, written in Go. 
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| It is designed to be modular and interoperable with any other implementation of the Filecoin Protocol.
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| More information about Lotus can be found [here](https://lotu.sh/).
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| 
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| ### What are the components of Lotus?
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| 
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| Lotus is composed of two separate pieces that can talk to each other:
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| 
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| The Lotus Node can sync the blockchain, validating all blocks, transfers, and deals
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| along the way. It can also facilitate the creation of new storage deals. If you are not 
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| interested in providing your own storage to the network, and do not want to produce blocks
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| yourself, then the Lotus Node is all you need!
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| 
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| The Lotus Miner does everything you need for the registration of storage, and the
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| production of new blocks. The Lotus Miner communicates with the network by talking 
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| to a Lotus Node over the JSON-RPC API.
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| 
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| ## Setting up a Lotus Node
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| 
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| ### How do I set up a Lotus Node?
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| 
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| Follow the instructions found [here](https://lotu.sh/en+getting-started).
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| 
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| ### Where can I get the latest version of Lotus?
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| 
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| Download the binary tagged as the `Latest Release` from the
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|  [Lotus Github repo](https://github.com/filecoin-project/lotus/releases).
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|  
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| ### What operating systems can Lotus run on?
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| 
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| Lotus can build and run on most Linux and MacOS systems with at least 
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| 8GB of RAM. Windows is not yet supported.
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| 
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| ### How can I update to the latest version of Lotus?
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| 
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| To update Lotus, follow the instructions [here](https://lotu.sh/en+updating-lotus).
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| 
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| ### How do I prepare a fresh installation of Lotus?
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| 
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| Stop the Lotus daemon, and delete all related files, including sealed and chain data by 
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| running `rm ~/.lotus ~/.lotusminer`.
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| 
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| Then, install Lotus afresh by following the instructions 
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| found [here](https://lotu.sh/en+getting-started).
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| 
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| ### Can I configure where the node's config and data goes?
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| 
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| Yes! The `LOTUS_PATH` variable sets the path for where the Lotus node's data is written.
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| The `LOTUS_MINER_PATH` variable does the same for miner-specific information.
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| 
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| ## Interacting with a Lotus Node
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| 
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| ### How can I communicate with a Lotus Node?
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| 
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| Lotus Nodes have a command-line interface, as well as a JSON-RPC API.
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| 
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| ### What are the commands I can send using the command-line interface? 
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| 
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| The command-line interface is self-documenting, try running `lotus --help` from the `lotus` home 
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| directory for more.
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| 
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| ### How can I send a request over the JSON-RPC API?
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| 
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| Information on how to send a `cURL` request to the JSON-RPC API can be found
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| [here](https://lotu.sh/en+api). A JavaScript client is under development.
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| 
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| ### What are the requests I can send over the JSON-RPC API?
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| 
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| Please have a look at the 
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| [source code](https://github.com/filecoin-project/lotus/blob/master/api/api_full.go) 
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| for a list of methods supported by the JSON-RPC API.
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| ## The Test Network
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| 
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| ### What is Testnet?
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| 
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| Testnet is a live network of Lotus Nodes run by the 
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| community for testing purposes.
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|  It has 2 PiB of storage (and growing!) dedicated to it.
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| 
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| ### Is FIL on the Testnet worth anything?
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| 
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| Nothing at all! Real-world incentives may be provided in a future phase of Testnet, but this is 
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| yet to be confirmed.
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| 
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| ### How can I see the status of Testnet?
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| 
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| The [dashboard](https://stats.testnet.filecoin.io/) displays the status of the network as 
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| well as a ton
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| of other metrics you might find interesting.
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| 
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| ## Mining with a Lotus Node on Testnet
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| 
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| ### How do I get started mining with Lotus?
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| 
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| Follow the instructions found [here](https://lotu.sh/en+mining).
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| 
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| ### What are the minimum hardware requirements?
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| 
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| An example test configuration, and minimum hardware requirements can be found 
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| [here](https://lotu.sh/en+hardware-mining). 
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| 
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| Note that these might NOT be the minimum requirements for mining on Mainnet.
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| 
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| ### What are some GPUs that have been tested?
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| 
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| A list of benchmarked GPUs can be found [here](https://lotu.sh/en+hardware-mining#benchmarked-gpus-7393).
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| 
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| ### Why is my GPU not being used when sealing a sector?
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| 
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| Sealing a sector does not involve constant GPU operations. It's possible
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| that your GPU simply isn't necessary at the moment you checked.
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| 
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| ## Advanced questions
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| 
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| ### Is there a Docker image for lotus?
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| 
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| Community-contributed Docker and Docker Compose examples are available 
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| [here](https://github.com/filecoin-project/lotus/tree/master/tools/dockers/docker-examples).
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| 
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| ### How can I run two miners on the same machine?
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| 
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| You can do so by changing the storage path variable for the second miner, e.g.,
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| `LOTUS_MINER_PATH=~/.lotusminer2`. You will also need to make sure that no ports collide.
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| 
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| ### How do I setup my own local devnet?     
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| 
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| Follow the instructions found [here](https://lotu.sh/en+setup-local-dev-net).
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