# PSA: Postmortem(s) rollup

**URL:** <https://community.fly.io/t/psa-postmortem-s-rollup/27367>\
**Category:** Fresh Produce\
**Tags:** blog, postmortem\
**Created:** [March 15, 2026, 7:26am UTC](https://community.fly.io/t/psa-postmortem-s-rollup/27367 "2026-03-15T07:26:33Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![mayailurus](https://sea1.discourse-cdn.com/fly1/user_avatar/community.fly.io/mayailurus/32/17593_2.png) [@mayailurus](https://community.fly.io/u/mayailurus)\
**Post date:** [April 4, 2026, 6:19am UTC](https://community.fly.io/t/psa-postmortem-s-rollup/27367/14 "2026-04-04T06:19:57Z")

</div>

The capacity squalls in North America moved east to the coast, 🌧, at this point…

| incid.  
date | pub.  
date | description |
| --- | --- | --- |
| 03/27 | 04/03 | [IAD CPU crunch](https://fly.io/infra-log/cpu-crunch-iad/) |

The `iad` region is architecturally a single point of failure in the Fly.io platform, last I heard, so bad weather here is especially noteworthy. A complete failure of this particular region can actually cause a global API outage ([which happened a year ago](https://fly.io/infra-log/2025-05-03/)).

This may have also contributed to the reports in the forum of 12+ hour disruptions of builders, although obviously the recorded time spans don’t align entirely:

- [https://community.fly.io/t/deploy-failing-registry-api-internal-5000-connection-refused/27458](https://community.fly.io/t/deploy-failing-registry-api-internal-5000-connection-refused/27458)

The corresponding real-time [status entry](https://status.flyio.net/incidents/ntr5mnq4y9wd) did mention builders, in general, and “deploys failing to complete (even for apps outside of the IAD region)”.

* * *

In an apparently separate incident, the Sprites innovations continued to explore previously unrecognized corner cases in the underlying Machines platform:

| incid.  
date | pub.  
date | description |
| --- | --- | --- |
| 03/27 | 04/03 | [Sprites API errors](https://fly.io/infra-log/sprites-api-errors/) (per-org databases) |

The databases themselves can go to sleep, it seems, and auto-wake was going awry.

Forum reports also put these disruptions in the 12+ hours range, for at least some users:

- [https://community.fly.io/t/all-sprites-showing-500-error/27460](https://community.fly.io/t/all-sprites-showing-500-error/27460)

Here, too, there may have been other contributing factors.

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_[View the full topic](https://community.fly.io/t/psa-postmortem-s-rollup/27367)._