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Example code of semitexa/scheduler

Informations about the package scheduler

Semitexa Scheduler

Recurring and delayed background jobs with lease-based workers, retry logic, and overlap protection.

Install

Included in every project created by the installer (https://semitexa.com/install.sh).

Purpose

Manages scheduled job execution. Jobs are persisted via ORM, leased by workers with heartbeat monitoring, and retried with exponential backoff on failure. Cron expressions define recurring schedules.

Role in Semitexa

Depends on semitexa/core, semitexa/orm, and semitexa/tenancy. Uses dragonmantank/cron-expression for schedule parsing. Jobs execute within tenant context when tenancy is active.

Key Features

Configuring a schedule per install

cronExpression accepts the framework's env::VAR::default form:

The attribute is the package's default; .env is the install's decision. Editing scheduler_schedule_definitions by hand is not an alternative — scheduler:plan rewrites every field of the row from the attribute on each tick (only enabled is yours to keep). An expression that does not parse is refused with a warning naming the job, and that job keeps its previous schedule while the rest plan normally.

Running it

Neither command starts with the web server. Run them as their own processes:

scheduler:list shows enabled schedules and their next due time; scheduler:run-now creates an immediate run for a schedule key.

Docs: https://semitexa.com/docs/cli/workers-scheduling

Notes

The scheduler is designed for Swoole long-running processes. Workers maintain leases via heartbeat and release them on graceful shutdown.

All versions of scheduler with dependencies

PHP Build Version
Package Version
Requires php Version ^8.4
semitexa/core Version >=2026.10.29.1052 || dev-master
semitexa/orm Version *
semitexa/tenancy Version *
dragonmantank/cron-expression Version ^3.3
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