Community & Careers questions and discussions

Editorial question75.6K views4,587 votes1 answer1,643 following

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Crystal AOT compilation and JSON::Serializable macro: generic union type resolution across compilation units

Integration boundary Crystal's ahead-of-time compiler performs whole-program type inference while the JSON::Serializable macro expands at compile time to generate serialization code. When a generic type contains a union of concrete types that are only fully resolved after macro expansion in a separate compilation unit, the interaction between these two compi

macros

crystal crystal-langNia Byte0 rep · 26 Aug 2022, 17:45 UTC

Editorial question57.9K views1,459 votes1 answer1,940 following

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Capacitor Plugin Bridge Timeout Configuration Lacking Per‑Plugin Override

The Capacitor JavaScript‑to‑native bridge serializes arguments and return values and uses a hardcoded timeout when awaiting native plugin responses. Developers sometimes need a specific plugin call to wait longer (or shorter) than the default without changing the global timeout that affects all plugins. Currently the bridge implementation does not expose a w

capacitor timeout pluginMira Moss0 rep · 26 Aug 2022, 05:14 UTC

Editorial question10.2K views4,733 votes1 answer1,388 following

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Bitbucket Server Docker image tag and Java version compatibility

Decision goal Select a documented Bitbucket Server Docker image for CI pipelines that requires a predictable Java runtime and stable webhook and permission behavior across upgrades. Constraints and uncertainty Bitbucket Server 8.x and later require Java 11, while 5.x-7.x run on Java 8. Branch permission schemes introduced in 8.0 are not backward-compatible w

bitbucket ci-pipeline bitbucket-serverAsh Finch0 rep · 25 Aug 2022, 16:23 UTC

Editorial question34.5K views2,902 votes1 answer1 comment626 following

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Pipeline vs GridSearchCV: Predicting after cross‑validation when refit=False

Goal Determine whether predictions can be produced after fitting GridSearchCV with refit=False when a Pipeline is used. Constraints When refit=False, GridSearchCV does not refit the best estimator on the full training set, so the predict() method raises NotFittedError. This limits accessibility for exploratory workflows that require predictions during or imm

gridsearchcv pipeline scikit-learnSky Vale0 rep · 24 Aug 2022, 07:04 UTC

Editorial question66.9K views1,860 votes1 answer1 comment1,286 following

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IntelliJ Database Connection Pool Size Change in 2026.1: Unresolved Idle-Connection Eviction Policy

Problem Context In IntelliJ IDEA 2026.1 the Database tool introduced a per‑connection pool size setting under File > Settings > Database > Data Sources > Advanced . The default remains 30 connections unless overridden. Despite this, idle connections are not automatically evicted; they persist until the IDE terminates. This can lead to intermitten

intellij-idea

intellij database-toolsIra Orbit0 rep · 23 Aug 2022, 23:33 UTC

Editorial question138.4K views2,105 votes1 answer1,635 following

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Does WFI reliably exit during timeout interrupts when interrupts are masked?

AArch64 Low-Power State Wake-up Behavior Implementing graceful timeouts on AArch64 often involves using the WFI (Wait For Interrupt) instruction in conjunction with the ARM Generic Timer. The goal is to place the core in a low-power state and wake it precisely when a programmable compare register triggers a private peripheral interrupt (PPI). A technical unc

wfi

aarch64 arm-generic-timerRin Vale0 rep · 23 Aug 2022, 10:48 UTC

Editorial question90.4K views3,925 votes1 answer3,902 following

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Does bufferCount or windowCount better handle paginating large dataset streams

When processing a large dataset via RxJS, the goal is often to batch emissions into discrete pages for processing. Using bufferCount(size) is a common approach because it emits concrete arrays, which simplifies the downstream logic. However, windowCount(size) provides an observable of observables, allowing for independent processing of each page as it is pop

operators pagination reactive-programmingNia Atlas0 rep · 23 Aug 2022, 12:19 UTC

Editorial question73.7K views2,502 votes1 answer4,566 following

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Lumen Cache Tagging Integration with Illuminate Cache: Missing Service Provider Registration

Integration Boundary Lumen reuses Laravel's Illuminate\Cache\CacheManager and CacheRepository classes, providing the same drivers (file, database, redis, memcached). However, Lumen's default service provider stack omits the CacheTaggingServiceProvider that enables the Cache::tags() fluent interface in Laravel. Goal and Constraints A team adopting Lumen wants

illuminate-cache service-provider cacheZo Echo0 rep · 23 Aug 2022, 10:42 UTC

Editorial question36.8K views4,664 votes1 answer1 comment1,298 following

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Rancher Server ↔ Cluster Agent: Should stale agent pods be auto‑removed on version skew?

Goal: Determine whether Rancher should automatically remove stale cluster‑agent pods when a version mismatch is detected between the Rancher server and a downstream Kubernetes cluster, given that the memory‑leak fix in v2.5.13/v2.6.0 resolved goroutine growth but no automated cleanup exists for version‑skew scenarios. Constraints: The current behavior leaves

rancher version-skew cluster-agentLax Nea0 rep · 22 Aug 2022, 23:09 UTC