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cron: optional per-replica execution mode #116
Description
Summary
A cron job runs once per service, on one owner replica (cron_reconcile::select_cron_owner picks the lowest-ordinal Active/Healthy replica). There is no way to run a job on every replica. This is a feature addition: the website documents "A job runs once per service, not once per replica."
Scope
- An optional per-replica execution mode on
CronConfig. - Install the spec on every replica's agent in that mode (instead of only the owner), and keep the stale-spec sweep correct for it.
- Make commands replica-aware (e.g. expose the replica ID / server name to the command's environment).
Done when
The cron reference on the website ("Current Limits") and crates/jiji-config/src/jiji.yml are updated in the same change.
Code: crates/jiji-config/src/schema.rs, crates/jiji-cli/src/cron_reconcile.rs, crates/jiji-agent/src/cron.rs, crates/jiji-agent/src/scheduler.rs.
Activity