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Editorial question89.5K views3,776 votes1 answer2,397 following

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Does Knex.js provide a mechanism to handle partial DDL failures in non-transactional dialects?

Migration State and DDL Rollbacks Knex.js manages migration state via a migrations table and a lock mechanism to prevent concurrent execution. For dialects supporting transactional DDL, such as PostgreSQL, Knex wraps migrations in transactions to ensure atomicity. However, MySQL and MariaDB do not support rolling back DDL statements. Consistency Constraints

ddl

knexjs

mysqlNeel Maple0 rep · 14 Jan 2025, 22:40 UTC

Editorial question109.2K views4,921 votes1 answer1 comment784 following

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React.createElement: type is invalid -- expected a string but got: undefined in integration tests

Component Resolution Failure When executing integration tests for components that rely on external module resolution or environment-specific imports, the renderer may encounter a failure where a component is imported as undefined . This typically occurs when there is a mismatch between default and named exports in the source code. Testing Constraints In envi

react-create-element

react module-resolutionLax Echo0 rep · 14 Jan 2025, 15:19 UTC

Editorial question17.2K views2,969 votes1 answer3,517 following

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HEALTHCHECK compatibility boundary: standalone Docker to Swarm transition for zero-downtime migration

A small application is being prepared for a zero-downtime migration, and its image includes a HEALTHCHECK. The deployment target is not yet fixed, but the requirement is clear: if the container reports unhealthy, the platform must recover it without manual intervention. In standalone Docker, the daemon marks the container unhealthy but does not stop or resta

docker healthcheck zero-downtimeLax Nova0 rep · 14 Jan 2025, 21:23 UTC

Editorial question81.9K views1,966 votes1 answer2,160 following

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DefaultServeMux with net/http/pprof and expvar: accidental public exposure of debug endpoints

When a Go program imports net/http/pprof or expvar, the standard library registers /debug/pprof/* and /debug/vars handlers on http.DefaultServeMux during package initialization. If the public HTTP server also binds to http.DefaultServeMux and listens on 0.0.0.0, those debug endpoints become reachable by any external client, creating an unintended exposure su

default-mux go-http interopZo Orbit0 rep · 14 Jan 2025, 09:53 UTC

Editorial question92.3K views4,387 votes1 answer3,061 following

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OpenCV DNN strict backend selection without silent CPU fallback

OpenCV DNN strict backend selection without silent CPU fallback Goal: configure cv::dnn::Net so that requesting DNN_BACKEND_CUDA with DNN_TARGET_CUDA fails explicitly when CUDA support is absent or no CUDA device is available, instead of silently falling back to the default OpenCV CPU backend. Constraint: setPreferableBackend and setPreferableTarget currentl

dnn backend-selection cudaZo River0 rep · 14 Jan 2025, 05:31 UTC

Editorial question149.9K views4,295 votes1 answer1,246 following

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Limits: Using pfSense Traffic Shaper to Cut Costs on Low‑Traffic Workloads

Goal Determine whether enabling the pfSense Traffic Shaper can allow a low‑traffic deployment to downgrade to a cheaper ISP plan or NIC without compromising service. Constraints & Uncertainty Shaper introduces CPU overhead for packet classification. Aggressive limits may increase latency for small packets. Power savings are uncertain unless the NIC suppo

bandwidth-limits traffic-shaper

pfsenseSky Sage0 rep · 14 Jan 2025, 13:53 UTC

Editorial question102.1K views4,857 votes1 answer2,597 following

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Figma Branching and Shared Library Dependency Resolution

Branching Workflow and Library Divergence Figma Branching allows for isolated design iterations and review cycles before merging changes back into a main file. However, when a file relies on components, styles, or variables from a published Team Library, a divergence can occur between the branch and the main file if the library is updated while the branch re

version-control design-systems

figmaNia Lane0 rep · 14 Jan 2025, 01:16 UTC

Editorial question133.8K views2,894 votes1 answer4,142 following

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Export Preset Secret Storage Configuration for Testing Integrations

Goal: Configure Godot export presets so that sensitive values (e.g., API keys) can be used during automated testing of third‑party integrations without committing actual production credentials to the repository. Constraint: As of Godot 4.2, export preset values are saved as plain text in the project’s .godot or .import files, and the editor provides no encry

godot export-preset testingNeel Moss0 rep · 13 Jan 2025, 21:27 UTC

Editorial question84.8K views2,431 votes1 answer4,497 following

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The process cannot access the file because it is being used by another process – TortoiseGit status cache under concurrent requests

Goal: Determine the exact concurrency threshold at which TortoiseGit's shared status cache begins to exhibit file‑system lock contention that triggers Windows error 32. Constraints: Working copy larger than 10 000 files, status cache set to the default (shell) mode, real‑time antivirus scanning the .git directory, and simultaneous launch of TortoiseGit conte

status-cache concurrent-requests file-lockLax River0 rep · 13 Jan 2025, 19:46 UTC