# Sentry in January 2021: incidents, uptime and changes

> Sentry in January 2021: 7 incidents on its status page (3 major or critical), 98.70% free of major or critical incidents (vendor-reported). From Rewindex’s archive of Sentry’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/sentry/2021/01
Last updated: 2021-02-01T00:00:00Z

- Incidents posted: 7 (major/critical: 3) · Maintenance: 0
- By vendor impact label: major 3, minor 4
- Uptime (vendor-reported): 98.70% free of major/critical incidents, 97.62% free of any incident; outage time 9 h 38 min, incident time 17 h 42 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [December 2020](https://rewindex.com/company/sentry/2020/12.md) · Next: [February 2021](https://rewindex.com/company/sentry/2021/02.md) · [All months](https://rewindex.com/company/sentry/reports.md) · [Sentry](https://rewindex.com/company/sentry.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 |
| --- | --- | --- | --- | --- | --- |
| [Significant Outage](https://rewindex.com/company/sentry/incidents/wpcjk071y102.md) | major | 2021-01-12 17:37 UTC | 2021-01-12 23:20 UTC | 5.7 h | resolved |
| [Temporary Inability to send Slack Notifications](https://rewindex.com/company/sentry/incidents/7mlyyrvfxbvh.md) | major | 2021-01-27 16:46 UTC | 2021-01-27 19:47 UTC | 3.0 h | resolved |
| [Temporary pause in event processing.](https://rewindex.com/company/sentry/incidents/qrsm0c39txv9.md) | major | 2021-01-27 19:36 UTC | 2021-01-27 20:41 UTC | 1.1 h | resolved |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Issues with Slack notifications](https://rewindex.com/company/sentry/incidents/c3jhnh1rj6dh.md) | minor | 2021-01-04 15:32 UTC | 2021-01-04 21:36 UTC | 6.1 h | resolved |
| [Delay in Event Attachment Processing](https://rewindex.com/company/sentry/incidents/lqjsx9ggp8t4.md) | minor | 2021-01-06 16:08 UTC | 2021-01-06 17:50 UTC | 1.7 h | resolved |
| [Significant Outage](https://rewindex.com/company/sentry/incidents/wpcjk071y102.md) | major | 2021-01-12 17:37 UTC | 2021-01-12 23:20 UTC | 5.7 h | resolved |
| [Elevated error rate in API](https://rewindex.com/company/sentry/incidents/537xpbx5ywr1.md) | minor | 2021-01-21 19:30 UTC | 2021-01-21 19:30 UTC | 0 min | resolved |
| [Temporary pause in event processing.](https://rewindex.com/company/sentry/incidents/ptrqbgc99xn3.md) | minor | 2021-01-26 00:00 UTC | 2021-01-26 00:18 UTC | 18 min | resolved |
| [Temporary Inability to send Slack Notifications](https://rewindex.com/company/sentry/incidents/7mlyyrvfxbvh.md) | major | 2021-01-27 16:46 UTC | 2021-01-27 19:47 UTC | 3.0 h | resolved |
| [Temporary pause in event processing.](https://rewindex.com/company/sentry/incidents/qrsm0c39txv9.md) | major | 2021-01-27 19:36 UTC | 2021-01-27 20:41 UTC | 1.1 h | resolved |

## Cite this

Sentry posted 7 status incidents in January 2021 (3 major or critical); 0 price changes and 0 notable page changes observed.

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


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Canonical: https://rewindex.com/company/sentry/2021/01 · Markdown: https://rewindex.com/company/sentry/2021/01.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T10:18:51.147Z