# Semaphore in November 2021: incidents, uptime and changes

> Semaphore in November 2021: 4 incidents on its status page (1 major or critical), 99.83% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Semaphore’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/semaphore/2021/11
Last updated: 2021-12-01T00:00:00Z

- Incidents posted: 4 (major/critical: 1) · Maintenance: 1
- By vendor impact label: critical 1, minor 3
- Uptime (vendor-reported): 99.83% free of major/critical incidents, 99.17% free of any incident; outage time 1 h 13 min, incident time 5 h 55 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [October 2021](https://rewindex.com/company/semaphore/2021/10.md) · Next: [December 2021](https://rewindex.com/company/semaphore/2021/12.md) · [All months](https://rewindex.com/company/semaphore/reports.md) · [Semaphore](https://rewindex.com/company/semaphore.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## Major and critical incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Complete outage on Semaphore 2.0](https://rewindex.com/company/semaphore/incidents/2b5clbghb5xj.md) | critical | 2021-11-16 17:57 UTC | 2021-11-16 19:10 UTC | 1.2 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Delays in job processing on Semaphore 2.0](https://rewindex.com/company/semaphore/incidents/rl81pyy7mx1s.md) | minor | 2021-11-03 17:03 UTC | 2021-11-03 19:19 UTC | 2.3 h | resolved |
| [Delays in job processing on Semaphore 2.0](https://rewindex.com/company/semaphore/incidents/80dyrsldvn1s.md) | minor | 2021-11-04 17:10 UTC | 2021-11-04 19:03 UTC | 1.9 h | resolved |
| [Delays in job processing on Semaphore Classic](https://rewindex.com/company/semaphore/incidents/1rxk81x946vt.md) | minor | 2021-11-16 16:14 UTC | 2021-11-16 16:47 UTC | 33 min | resolved |
| [Complete outage on Semaphore 2.0](https://rewindex.com/company/semaphore/incidents/2b5clbghb5xj.md) | critical | 2021-11-16 17:57 UTC | 2021-11-16 19:10 UTC | 1.2 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Database maintenance](https://rewindex.com/company/semaphore/incidents/07fgfhwf0bq8.md) | maintenance | 2021-11-20 12:00 UTC | 2021-11-20 13:01 UTC | 1.0 h | resolved |

## Cite this

Semaphore posted 4 status incidents in November 2021 (1 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/semaphore/2021/11
- Citation: Semaphore, “Semaphore in November 2021” (2021-11-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/semaphore/2021/11 (CC BY 4.0).
- Markdown link: `[Semaphore: Semaphore in November 2021 (2021-11-01)](https://rewindex.com/company/semaphore/2021/11)`


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Canonical: https://rewindex.com/company/semaphore/2021/11 · Markdown: https://rewindex.com/company/semaphore/2021/11.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:54:24.838Z