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GCP Cloud Scheduler
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Cloud Scheduler is a fully managed cron service. Trigger Cloud Run, Cloud Functions, Cloud Tasks, or any HTTP endpoint on a schedule (daily, hourly, custom). No servers to manage. Mastery takes <1 week. Salary premium negligible (< 5%) because it's simple. But essential for DevOps and SRE teams.
GCP Cloud Scheduler이란
Cloud Scheduler is a managed cron service on GCP. Define a schedule (cron expression), set a target (Cloud Run, Cloud Functions, HTTP endpoint, Pub/Sub), and Cloud Scheduler executes it on time. Handles timezones, retries, and logging automatically. Use cases: daily data exports, hourly metric aggregation, scheduled emails, nightly backups, recurring reports.
🔧 도구 & 생태계
Google Cloud Consolegcloud CLICloud Run (trigger target)Cloud Functions (trigger target)Cloud Tasks (integration)Cloud Loggingcron expressions
📋 시작하기 전에
💰 지역별 연봉
| 지역 | 주니어 | 미들 | 시니어 |
|---|---|---|---|
| USA | $50k | $80k | $120k |
| UK | $35k | $55k | $85k |
| EU | $40k | $65k | $95k |
| CANADA | $55k | $85k | $130k |
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❓ 자주 묻는 질문
What's the difference between Cloud Scheduler and Cloud Tasks?
Cloud Scheduler = recurring schedule (daily, hourly). Cloud Tasks = execute multiple tasks with retries/delays (e.g., 'process 1000 orders, 5 at a time'). Use Scheduler for cron jobs, Tasks for async job queues.
Can I test my scheduled job without waiting?
Yes. In Cloud Scheduler UI, click 'Force run' to trigger immediately. Check Cloud Logging to see the execution and any errors. Test, then wait for the scheduled time.
How do I pass parameters to a scheduled job?
Define in Cloud Scheduler as HTTP request body or query params. Example: POST to /api/import with JSON body {"file": "data.csv"}. Cloud Run receives the request and reads the body.
What timezone does Cloud Scheduler use?
UTC by default. You can set a different timezone in the scheduler config. Useful for daily jobs tied to business hours (e.g., 9 AM PST every weekday).
How reliable is Cloud Scheduler?
Cloud Scheduler guarantees at-least-once execution. If a job fails, it retries (configurable: 0-5 times, exponential backoff). Risk: duplicate execution if job is not idempotent. Design jobs to handle being run twice.
Can I disable a scheduled job temporarily?
Yes, pause it in the UI or via gcloud. Paused jobs don't execute until resumed. Use for maintenance windows or temporary disabling without deleting the job config.
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