Cosimo Streppone cosimo

(originally published at https://aws.amazon.com/message/101925/)

We wanted to provide you with some additional information about the service disruption that occurred in the N. Virginia (us-east-1) Region on October 19 and 20, 2025. While the event started at 11:48 PM PDT on October 19 and ended at 2:20 PM PDT on October 20, there were three distinct periods of impact to customer applications.

First, between 11:48 PM on October 19 and 2:40 AM on October 20, Amazon DynamoDB experienced increased API error rates in the N. Virginia (us-east-1) Region.

Second, between 5:30 AM and 2:09 PM on October 20, Network Load Balancer (NLB) experienced increased connection errors for some load balancers in the N. Virginia (us-east-1) Region. This was caused by health check failures in the NLB fleet, which resulted in increased connection errors on some NLBs.

Third, between 2:25 AM and 10:36 AM on October 20, new EC2 instance launches failed and, while instance launches began to

	#!/bin/bash
	set -e

	BUCKET_NAME="$1"

	curl -s --user $CB_USER http://localhost:8091/pools/default/buckets/${BUCKET_NAME}/scopes \| jq -r .uid

	[Unit]
	Description=Apache Tomcat 9 Web Application Server
	Documentation=https://tomcat.apache.org/tomcat-9.0-doc/index.html
	After=network-online.target
	Wants=cloud-final.service

	[Service]

	# Configuration
	Environment="CATALINA_HOME=/usr/share/tomcat9"

	"""
	Generate private/public keys for use in Google Pay Business Console
	https://pay.google.com/business/console/
	"""

	import base64
	from cryptography.hazmat.primitives.asymmetric import ec
	from cryptography.hazmat.primitives import serialization

	# Generate the ECDSA private key

	"""
	Migrates SendGrid templates from one account to another.

	Requires a `.env` file with the following variables:
	- SOURCE_SENDGRID_API_KEY
	- DESTINATION_SENDGRID_API_KEY

	There is not much error handling here. This is not a place of honor.
	It turned out to run quite smoothly still.
	"""

	# Build the dynamic and vsthrottle Varnish modules from source.

	FROM ubuntu:20.04

	ENV TZ=Etc/UTC
	ENV VARNISH_VERSION 7.4

	# Avoid tzdata terminal configuration that would halt the build
	RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

	# Build libvmod_dynamic.so from source (https://github.com/nigoroll/[email protected])

	FROM ubuntu:20.04

	ENV TZ=Etc/UTC
	ENV VARNISH_VERSION 7.4

	# Avoid tzdata terminal configuration that would halt the build
	RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

	"=======================================================================
	" Vim settings file by Andreas Schneider <mail at cynapses.org>
	" with parts from Ciaran McCreesh <ciaranm at gentoo.org>
	" and Sven Guckes <setup-vimrc.forall at guckes.net>
	"
	" Most recent update: Do Mär 01 11:35:54 CET 2007
	"
	" Get the latest version from:
	" http://www.cynapses.org/tmp/setup/
	"

	#
	# Requirements:
	# - websocket-client==1.6.2
	#

	from websocket import create_connection


	def select_origin_header(extra_headers):
	origin = None

	name: CI
	on:
	pull_request:
	branches: [main]
	push:
	branches: [main]

	jobs:
	ci:
	strategy: