# Error Handling

> Complete dossiers for 4 core PostgreSQL settings in Error Handling.
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Dossier URLs remain flat; this category exists only to organize browsing and the sidebar.

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Section pages:

- [data_sync_retry](/parameters/data-sync-retry/): data_sync_retry — Whether to continue running after a failure to sync data files. Observed in PG9.4–19 Beta 3; its last measured boot default is off in PG19 Beta 3, with postmaster context. This is a beta-snapshot fact and can change before PostgreSQL 19 GA.
- [exit_on_error](/parameters/exit-on-error/): exit_on_error — Terminate session on any error. Observed in PG9.1–19 Beta 3; its last measured boot default is off in PG19 Beta 3, with user context. This is a beta-snapshot fact and can change before PostgreSQL 19 GA.
- [recovery_init_sync_method](/parameters/recovery-init-sync-method/): recovery_init_sync_method sets the method for synchronizing the data directory before crash recovery. It is a sighup setting present in PG14–18; the latest recorded boot default is fsync.
- [restart_after_crash](/parameters/restart-after-crash/): restart_after_crash — Reinitialize server after backend crash. Observed in PG9.1–19 Beta 3; its last measured boot default is on in PG19 Beta 3, with sighup context. This is a beta-snapshot fact and can change before PostgreSQL 19 GA.