Propose an edit: Solana congestion crisis

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The **Solana congestion crisis** was a period in March and April 2024 when the [[Solana]] network became so congested that the majority of ordinary user transactions failed. On April 4, 2024, Dune Analytics data showed 75.3 percent of non vote transactions failing, a record for the network. The crisis coincided with the first great [[meme coin]] mania of the cycle, including the explosive early growth of [[pump.fun]], and it shaped how an entire generation of [[the trenches]] learned to trade: with priority fees, retries, and dedicated RPCs.

## Causes

Solana's low fees made it the natural home of the 2024 meme coin boom. Launchpads such as pump.fun and a wave of speculative launches in March 2024 (the [[book of meme]] and [[slerf]] manias among them) flooded the chain with transactions, while arbitrage and sniper bots spammed duplicate transactions to win trades. Engineers attributed the congestion largely to limitations in Solana's implementation of the QUIC networking protocol and to uneven adoption of priority fees, which left honest transactions competing on equal terms with bot spam. Helius CEO Mert Mumtaz argued that the alarming failure charts overstated user pain, estimating that around 95 percent of failing transactions were unsuccessful bot arbitrage attempts rather than human trades. Even so, ordinary users reported swaps timing out for hours, and wallets and frontends added aggressive priority fee sliders as a survival measure.

## Effect on the trenches

For meme coin traders the congestion period was formative. Sniping a fresh pump.fun launch required tipping validators through services like Jito, transactions had to be resubmitted repeatedly, and failed buys during vertical candles became a defining grievance of the era. The episode fed the narrative that meme coins were simultaneously Solana's killer app and its greatest stress test, and critics revived "Solana is down" jokes even though the chain never actually halted during the crisis, unlike in earlier outages.

## Resolution

Anza, the main developer shop behind the Solana validator client, shipped version 1.17.31 on April 15, 2024, described as the first in a series of releases to alleviate congestion, with deeper fixes following in the 1.18 line later that spring. Failure rates and confirmation times improved through May, and the network went on to absorb far larger meme coin volume spikes later in 2024, including the [[goatseus maximus]] and election era manias, without a comparable breakdown. The crisis is remembered as the moment Solana's infrastructure caught up to its meme coin economy.

## References

* Cointelegraph, Solana struggles, record 75 percent of user transactions are failing, or are they: https://cointelegraph.com/news/solana-struggling-record-seventy-five-percent-trasnactions-fail-memecoin-mania
* CoinDesk, Solana rolls out update to tackle network congestion: https://coindesk.com/tech/2024/04/15/solana-rolls-out-update-to-tackle-network-congestion/amp
* BeInCrypto, meme coins push Solana to limit, 77 percent failed transactions: https://beincrypto.com/meme-coin-solana-transaction-failure/
* Blockworks, Lightspeed newsletter, Solana's failing transactions: https://blockworks.com/news/lightspeed-newsletter-dropped-solana-transactions
* BanklessTimes, memecoins without audits, 75 percent failed transactions, are crypto bots killing Solana: https://www.banklesstimes.com/news/2024/08/02/memecoins-without-audits-75-failed-transactions-are-crypto-bots-killing-solana/

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