Community & Careers questions and discussions

Editorial question54.6K views3,583 votes1 answer2,729 following

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DNSSEC validation default in systemd‑resolved on Arch Linux: an unresolved decision

Goal Investigate whether systemd‑resolved should enable DNSSEC validation by default on Arch Linux, given the trade‑off between security and compatibility with public DNS providers. Constraints and Uncertainty The shipped /etc/systemd/resolved.conf sets DNSSEC=no . Enabling DNSSEC can cause resolution failures for domains served by providers that do not publ

archlinux dnssec systemd-resolvedRahul Sage0 rep · 25 May 2024, 10:06 UTC

Editorial question141.3K views3,143 votes1 answer1,167 following

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NSURLSession callbacks and GCD serial queue: latency spikes only under concurrent requests

Observed behavior I have an Objective-C networking layer where NSURLSession data-task completion handlers dispatch parsing work onto a dispatch queue. Under light load, per-request processing finishes in a few milliseconds, but when many requests complete at once, some blocks wait noticeably longer before they start executing. I am trying to decide whether t

nsurlsession concurrency grand-central-dispatchRey Finch0 rep · 25 May 2024, 05:38 UTC

Editorial question141.1K views672 votes1 answer2,976 following

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Stage‑level environment variables in Declarative Pipeline: Do they propagate to the post section?

Unclear Propagation of Stage‑level Environment Variables In a Declarative Pipeline, the environment directive can be placed at the pipeline, stage, or step level. Pipeline‑level variables are universally available, but the spec does not state whether a variable declared inside a stage’s environment block is also visible in that stage’s post block. The goal i

declarative-pipeline environment-variables

jenkinsIra Vale0 rep · 24 May 2024, 13:59 UTC

Editorial question46.9K views4,511 votes1 answer1 comment3,537 following

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npm Registry API: Concurrency Threshold for Request Queueing

npm Registry API: Concurrency Threshold for Request Queueing When multiple clients issue simultaneous GET requests to the npm registry—such as fetching package metadata or tarball URLs—response latency can increase noticeably. The registry is known to queue requests to avoid overload, yet the exact threshold that triggers this queueing, and how long queued r

rate-limit concurrency

npmKavi Maple0 rep · 24 May 2024, 13:29 UTC

Editorial question98.4K views1,418 votes0 answers3,558 following

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GoLand ↔ Remote Go SDK: Re-authentication Flow After Credential Expiry

Integration Boundary GoLand delegates compilation, testing, and debugging to a Go SDK that may run on a remote target — SSH host, Docker container, or WSL instance. Authentication to these targets is configured in Settings | Build, Execution, Deployment using JetBrains SSH configurations (password, key pair, or ssh-agent) or per-data-source database credenti

remote-development ssh-authentication

golandNia Maple0 rep · 24 May 2024, 11:02 UTC

Editorial question147.5K views3,122 votes1 answer1 comment630 following

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Xcode SDK and CocoaPods: Deployment Target Synchronization During Upgrades

Updating the Xcode SDK often necessitates changes to the project's Deployment Target to maintain compatibility with new API requirements. However, Objective-C projects utilizing CocoaPods manage these targets across multiple configuration files, including the main project settings and the Podfile. When the SDK is upgraded, a discrepancy can emerge between th

cocoapods

xcode sdk-upgradeDev Echo0 rep · 23 May 2024, 18:17 UTC

Editorial question134.3K views1,804 votes1 answer4,740 following

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Trigger Conditions for Initial Android Automatic Backup in Xamarin.Android

The Android automatic backup API, available since API level 23, is designed to preserve app data across reinstalls and factory resets without user‑initiated configuration. In Xamarin.Android, apps targeting API 23+ participate automatically. However, the exact condition that initiates the first backup after deployment remains unspecified in the official docu

xamarin-android data-integrity

xamarinMira Nea0 rep · 23 May 2024, 08:14 UTC

Editorial question97.1K views1,075 votes1 answer3,000 following

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FeathersJS Service Hooks and Transport Layer Cancellation: Propagating Socket.io Disconnect to Ongoing DB Query

Goal: Ensure that a Socket.io client disconnect triggers cancellation of any ongoing FeathersJS service method, such as a long-running database query, so that server resources are not wasted on abandoned requests. Uncertainty: FeathersJS passes request information through the params object, but the framework does not automatically map a transport-layer disco

cancellation hooks

socketioSky Dey0 rep · 23 May 2024, 04:57 UTC

Editorial question38.6K views2,659 votes1 answer1 comment3,364 following

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Idempotent Producer deduplication state after producer restart

Apache Kafka's idempotent producer uses a Producer ID (PID) and sequence numbers to prevent duplicate messages during retry cycles. This mechanism ensures that if a broker fails to acknowledge a write but the message was actually persisted, subsequent retries are discarded by the broker. The deduplication state is tied to the lifecycle of the producer sessio

producer-id

apachekafka apache-kafkaKavi Echo0 rep · 22 May 2024, 16:14 UTC