rewindex

CompaniesAblyIncidents

Ably: Some SSE connections disconnected and reconnected every 30s

No impact listedStatus: resolvedStarted Resolved (0 min)1 updatestspg.io (opens in new tab)

Timeline of updates

  1. resolved

    For most of the production cluster, between 13:05 and 14:02 UTC on 2024-10-01, a small proportion of SSE connections were disconnected 30 seconds after establishing a connection. For the duration of that 30s they still worked fine, and connection resumption was working correctly, so this should not have caused any missed messages. The net effect would have been a small increase in subscribe latency about once every 30s.

    Only the SSE endpoint was affected; websocket traffic (including anyone using an Ably SDK) was not.

    For customers connected to ap-southeast-2 (Sydney), the duration of the effect was much longer, between 10:06 on 2024-09-30 to 14:02 on 2024-10-01.

Archive proof

Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.

How the archive is checked, and what it cannot prove.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).

Cite this

Status incident (vendor impact label: none) posted by Ably, started 2024-10-01 13:05 UTC, resolved after 0 min, 1 update(s).

Title
Some SSE connections disconnected and reconnected every 30s
Vendor
Ably
Date
URL
https://rewindex.com/company/ably/incidents/t84szl0vhz3r

Ably profileRecent Ably incidentsAll outages on October 1, 2024Ably in October 2024MarkdownJSON