Polygon suffers hour-long RPC disruption affecting block manufacturing; Heimdall hotfix accountable
Polygon’s proof‑of‑stake (PoS) community suffered a one‑hour outage on July 30 that disrupted apps and customers.
In line with Polygon CEO and founder Sandeep Nailwal, the incident didn’t cease block manufacturing.
Nonetheless, QuickNode Standing reported that block manufacturing stopped for one hour at block peak 74,592,238, echoing different experiences made by customers on X.
Consensus hiccup
In a put up on X, Nailwal mentioned a number of RPC suppliers “and therefore corresponding apps and customers” confronted points over a two‑to‑three‑hour window. On the similar time, the chain “remained operational and continued to provide blocks and course of person transactions” for unaffected RPCs.
Polygonscan information signifies that the community generated a brand new block two seconds after block 74,592,238, as of press time, regardless of the block explorer displaying stalled block manufacturing at this peak.
Nailwal traced the incident to a hotfix and a short lived pause on the consensus (Heimdall) layer tied to a latest, advanced improve. The execution layer (Bor) continued operating, however some RPC nodes fell out of sync after the repair, creating app‑degree failures that felt like a community halt.
He apologized for the top‑person affect and mentioned Polygon is working with suppliers “to convey everybody in control,” anticipating no additional observe‑on points.
Halted block manufacturing
Infrastructure operators described the identical signs. QuickNode reported the mainnet stalled from its vantage level at block peak 74,592,238 and warned that the brand new Heimdall v0.2.16 improve was inflicting points with execution shoppers Bor and Erigon.
The corporate paused upgrades “till additional discover,” suggested operators to not proceed, and commenced resyncing full nodes whereas resetting Erigon situations to revive service.
Polygon’s standing web page remoted the fault to the Heimdall‑V2 community. The staff mentioned the mainnet Heimdall service turned unresponsive, affecting validator and checkpoint visibility through Heimdall APIs, however emphasised there was no affect on the Bor layer.
Engineers recognized the difficulty and deployed a repair earlier than marking the incident resolved.
The timeline exhibits how the disruption unfolded and unfold throughout groups. Polygon opened the incident at 09:52 UTC on July 30, recognized the difficulty by 09:57, and declared it resolved at 11:01.
QuickNode then reported a stall at 11:28, paused the Heimdall v0.2.16 rollout at 11:51 pending steerage from the Polygon Basis, and by 15:39 mentioned it was resyncing and resetting nodes to convey companies again on-line.
Nailwal characterised the episode as a coordination hole between consensus and infrastructure relatively than a protocol failure.
