mehr-als-nix/parallel
Lightweight PHP library to run multiple tasks in parallel using a Manager/Worker model. Uses pcntl on *NIX to fork processes (auto-detects CPU count), with graceful fallback to serial execution when requirements aren’t met. Captures results and errors per worker.
Architecture fit is poor for typical Laravel applications due to strict PCNTL and *NIX requirements that conflict with standard web server deployments (Apache/Nginx). The package only functions in CLI contexts, but Laravel's queue system (Horizon) already handles process parallelism more robustly. Integration feasibility is low—PCNTL is disabled in most shared hosting and cloud PHP environments, and the package hasn't been updated since 2017, risking compatibility with modern PHP 8+ and Laravel 9+ versions. Technical risks include unaddressed TODO items (e.g., flawed process slot management, missing IPC), zero dependents indicating no production validation, and potential security vulnerabilities from outdated code. Key questions: How will PCNTL be enabled in production environments where it's typically disabled? Does this duplicate Laravel's native queue capabilities? What fallback strategies exist when PCNTL is unavailable beyond silent serial execution?
Stack fit is mismatched—Laravel's queue workers and Horizon natively manage parallelism via supervisor-managed processes, making this package redundant for queue-based workflows. Migration path is non-trivial: it would require forcing PCNTL enablement (often impossible in managed environments), restricting usage to Artisan commands only, and overriding Laravel's queue system for specific tasks. Compatibility is poor; the package's PHP 7.0+ requirement conflicts with Laravel 9+ (PHP 8.0+), and PCNTL is absent in default PHP-FPM/Docker setups. Sequencing should avoid integration entirely; instead, leverage Laravel's built-in queue drivers or modern async libraries like ReactPHP or Amp. If absolutely required, use only in isolated CLI commands with explicit environment checks, but this introduces unnecessary complexity.
Maintenance burden is high due to 6+ years of inactivity—no security patches, dependency updates, or bug fixes. The "improve docs" TODO indicates inadequate documentation, forcing teams to reverse-engineer behavior. Support is nonexistent (0 dependents), meaning any issues require internal engineering effort with no community resources. Scaling is problematic: the package's naive process slot management (per TODO) could cause resource starvation under load, and PCNTL forks are memory-intensive compared to thread-based alternatives. Failure modes include silent serial execution fallback masking critical failures in non-*NIX environments and inconsistent exception handling (e.g., getReturnCode() returning 0 for exceptions). Ramp-up is high due to lack of modern examples, unclear error handling patterns, and deep PCNTL knowledge requirements for troubleshooting.
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