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What is Sharding?

What is Sharding? Challenges and potential risks of Sharding technology

What is Sharding? What problem does sharding technology help with Blockchain? What are the challenges & risks of using Sharding?

Sharding is widely praised as a solution to Ethereum’s scalability. In today’s article, we will learn what Sharding is, its advantages and limitations.

Blockchain Scaling Problem

There are two ways to increase the transaction throughput of the blockchain:

  • The first way – Vertical Scalability.
  • The second way – Horizontal Scalability.

Extends vertically and horizontally

Vertical Scalabilit

Firstly, to achieve higher throughput, the blockchain requires the nodes in the network to be extremely powerful for faster processing and more transactions.

It means that users have to spend a lot of money on hardware and this is not suitable for the vast majority of ordinary users, it is suitable for individuals & organizations with solid finances and technical background. steadfast art.

Solana and Internet Computer have approached in this direction, in both of these blockchains, the average user cannot validate the blockchain on normal hardware.

This is not necessarily a bad thing, vertically scaled public blockchains can be suitable for certain applications that require high performance and consistent state. But the disadvantage of this approach is that it makes the transaction validation process less decentralized.

Hardware requirements for vertical expansion

Horizontal Scalability

Contrary to the above approach, horizontal scaling is a way of dividing the system into shards. Each shard only performs a subset of the total work on the blockchain, and each validator only needs to validate that single shard and a number of other shards.

This allows more users to participate in the validation process, due to lower requirements per shard. Overall, this approach keeps transaction validation decentralized, while expanding the total throughput of the system.

What is Ethereum 2.0 Vision & Sharding Technology?

The core problem Ethereum has to solve is how to be able to handle more transactions per second while keeping the network decentralized and secure. This is an incredibly difficult problem to solve and Ethereum developers have been thinking about it for years.

Ethereum Scalability, Security and Decentralization Issues

The answer to the above problem is to scale the system horizontally, an arbitrarily fragmented smart contract platform. This is precisely the vision that Ethereum 2.0 describes.

Ethereum 2.0 is one of the very complex approaches to scaling for the Ethereum network, it requires a lot of work to design and implement. However, if successfully implemented, Ethereum 2.0 will also be one of the most efficient ways, increasing the throughput of Ethereum by a large extent.

Sharding, or fragmentation, is one of the core technologies of Ethereum 2.0. In Ethereum 1.0, each node stores a copy of the entire Ethereum blockchain. Whenever it is expanded, each node has to update, which consumes bandwidth and memory of the system.

Network structure when using sharding and not using sharding

With sharding, Ethereum will be split into many pieces. Each shard will handle their own transactions and contracts, but the shards as a whole can still communicate with other shards. Since every authentication shard is independent, they do not need to store data from other shards.

You can learn more about new trends and technologies in Ethereum 2.0 right here.

Sharding’s potential challenges and risks

Although it is the solution to the Scalability Trilemma problem, Sharding brings other problems to Ethereum and the developer community.

In a word, Sharding will split Ethereum into a lot of pieces. Each shard can do its own thing, DeFi protocols will tend to cluster on the same shard to benefit from synergies. This may lead to an increase in gas fees on some pieces.

Since the protocols on different fragments want to communicate with each other, some interaction protocol will have to be used. Of course this will be more complicated than the interaction between two protocols in the same piece.

On some pieces (Shard) will be very busy, like the population division between urban and rural

Besides, sharding also brings some potential risks to the network, it allows hackers to destroy a thriving ecosystem by attacking any piece of the network.

If a shard is hijacked by a hacker, it can cause a domino effect and negatively affect the token price, a large number of users, and the nodes on that shard.


Thus, we have learned what Sharding is, as well as the advantages, challenges, and risks of Sharding. If you have other questions related to the above topic, please comment below for idolmeta.net to support right away!


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