# Solana Has Had No Reported Major Mainnet Outage in More Than Two Years

By Simon Yoon

Canonical URL: https://www.tokenpost.com/news/technology/34669
Published: 2026-10-19T08:18:33.000Z
Updated: 2026-10-19T08:18:33.000Z
Section: Technology

> About 20 validator identities held more than one-third of active stake in the third quarter of 2026, while one routing system accounted for about 29% in an October 2026 snapshot.

Solana has had no reported major mainnet outage for more than two years, but concentrated stake, hosting and software could leave many validators exposed to shared failures.

Validator vote success averaged about 99.7% in 2026. Tokenized real-world assets using Solana grew from roughly $1 billion to $4.4 billion over a year, while the network processed more than $2 trillion in stablecoin volume in the first quarter of 2026.

About 20 validator identities held more than one-third of active stake in the third quarter of 2026. If coordinated, that stake could prevent the remaining validators from reaching the two-thirds majority needed to finalize blocks. It would not give the group unrestricted control over user assets or allow it to rewrite finalized transactions. The count measures validator identities rather than independent operators; one company can run several validators.

IP-geolocation estimates placed roughly 40% of stake in Frankfurt and Amsterdam, and about 59% across Germany, the Netherlands and the United States. The estimates may not fully reflect operators’ actual locations. An autonomous system number (ASN), which identifies a network routing system, accounted for about 29% of stake in an October 2026 snapshot. That was above the Solana Foundation delegation program’s 25% threshold for participating validators.

A routing failure on Aug. 12, 2026, took about 90 validators offline for 33 minutes, representing nearly 29% of stake. Blocks continued to be produced and transactions continued to land. The affected stake came within about 4.5 percentage points of the one-third threshold.

Software configurations also overlap. Jito configurations accounted for about 63% of active stake, and Harmonic configurations about 26%. Many configurations still rely on shared Agave code, so a flaw in common components could affect multiple validator groups. Firedancer uses a separate C++ codebase, but has not displaced the dominant configurations.

In a seven-day sample after the late-July increase to a 100 million-compute-unit block limit, Solana used about 30% to 45% of available capacity. The planned Alpenglow upgrade targets finality of about 150 milliseconds. That figure is a target, not current performance.