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Prevent Oracle archiver stalls by monitoring every configured archive destination, watching the alert log for archiving errors, and alerting on stalled sequence progress before the destination fails. ORA-00257 means an archiver encountered an error while writing redo; a full destination is common, but a failed mandatory destination or another storage, access, network, or configuration problem can produce the same incident. If it is not resolved, Oracle warns that transactions can stop. Oracle’s ORA-00257 entry.
What an Oracle archiver stall means
Oracle must archive redo according to the database’s archive configuration. When an archiver cannot complete that work, the alert log may report ORA-00257 or another archiving error, such as ORA-16038. A destination running out of space is a likely cause, but do not assume it is the only one: Oracle also identifies a failed MANDATORY destination as a possible trigger. The error’s accompanying OS, storage, parameter, or remote-service details are essential to diagnosis. Oracle Database Error Messages.
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Destination binding matters. Successful archival to a MANDATORY destination is required; OPTIONAL destinations interact with LOG_ARCHIVE_MIN_SUCCEED_DEST. A failure can therefore affect database operation differently depending on the configuration. Oracle Database Reference: V$ARCHIVE_DEST.
Build monitoring around three signals
Destination state and error details
Query V$ARCHIVE_DEST to inventory destinations and detect unhealthy states or errors. The view reports destination configuration and binding information, with status values including FULL, ERROR, DISABLED, and BAD PARAM. Alert on those states and on non-empty error details, and include the database or instance identity, destination ID or name, and error text in the notification. This helps responders locate the affected target instead of receiving an un actionable generic archiver alarm. V$ARCHIVE_DEST reference.
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Runtime status and sequence progress
Use V$ARCHIVE_DEST_STATUS to inspect runtime destination information, recent archived and applied sequence details, and redo gap status where relevant. It complements V$ARCHIVE_DEST: the latter exposes destination state and configuration, while the former helps establish whether work is progressing and whether a standby is behind. V$ARCHIVE_DEST_STATUS reference.
V$ARCHIVE_DEST_STATUS is runtime-only and its information does not persist across instance shutdown. Retain history in a monitoring system or correlate queries with retained alert-log events. Flag destinations that remain unhealthy or fail to make expected sequence progress over an interval chosen for the environment’s redo rate, transport design, and recovery objectives. Oracle Database Reference.
Alert-log errors and hangs
Monitor the database alert log for ORA-00257, related archiving errors such as ORA-16038 where applicable, and archiver hangs. Oracle Enterprise Manager’s 24.1 metric reference describes a metric for archiver errors or hangs recorded in the alert file; it directs operators to inspect the alert log and archiver trace. Enterprise Manager 24.1 Database Metric Reference Manual.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsThat Enterprise Manager reference gives a 15-minute collection frequency for the described metric, no default warning threshold, and a critical threshold for ORA errors. This is a product- and version-specific schedule, not a universal monitoring interval. Choose detection cadence and notification routing to suit operational needs, and check that the monitoring agent itself is healthy.
Choose complementary monitoring, not a single alarm
| Monitoring source | What it tells you | Important limitation |
|---|---|---|
| V$ARCHIVE_DEST | Current destination configuration, binding, status, and error details. | Use alert-log history and runtime progress data to add context and persistence. Oracle Database Reference. |
| V$ARCHIVE_DEST_STATUS | Runtime state, recent sequence information, and relevant standby apply or gap status. | Runtime information does not persist across instance shutdown. Oracle Database Reference. |
| Alert-log monitoring | Recorded archiver errors and hangs, with the alert log and trace files available for investigation. | Detection depends on collection cadence, notification configuration, and monitoring-agent availability. Enterprise Manager 24.1 metric reference. |
A practical setup combines current-state checks with retained alert-log monitoring. That way an operator can see both whether a destination is failing now and what error preceded the condition, even after a database restart. Verify view columns, metric names, thresholds, and collection behavior against the deployed database and Enterprise Manager releases: the cited view references are for Database 26, the metric reference is Enterprise Manager 24.1, and Oracle’s cited archive administration guide is 12c.
Respond to an archiver alert safely
- Read the alert log and archiver trace. Review entries around the incident for the actual operating-system, storage, parameter, or remote-service error. Oracle’s ORA-00257 guidance points operators to the alert log and trace files. ORA-00257 guidance.
- Identify the failed destination. Inspect V$ARCHIVE_DEST status and error fields, then V$ARCHIVE_DEST_STATUS for runtime state, sequence progress, and standby gap context. V$ARCHIVE_DEST; V$ARCHIVE_DEST_STATUS.
- Check the underlying resource or configuration. For the destination identified, verify actual free capacity and quota, mount and path access, permissions, and remote connectivity as indicated by the specific error. A full device is common, not conclusive.
- Restore service without discarding recovery data. Restore destination capacity or availability, or correct the invalid parameter or failed mandatory target. Do not delete archived logs or disable a destination as a generic remedy: first verify backup, retention, Data Guard, and recovery requirements. Oracle’s administration guidance emphasizes adequate destination space and checking for disk-full evidence in the alert log. Oracle Database 12c archiving guidance.
- Verify recovery. Confirm the destination returns to a usable state and the archived sequence advances. Where a standby is involved, separately verify transport, apply progress, and gap status.
Prevent the next stall
- Inventory destinations: record each local and remote destination, its MANDATORY or OPTIONAL binding, expected location, current status, and operational owner.
- Watch capacity outside the database: track free space and quotas, and forecast archive-log volume against peak redo generation and retention or backup behavior. Set alerts early enough for responders to act before archive writes fail.
- Cover every target: include remote Data Guard destinations and every mandatory destination in health and progress monitoring.
- Set environment-specific progress rules: alert when a destination stays unhealthy or sequences stop advancing for longer than the system’s expected interval; base that interval on redo generation, transport design, and recovery objectives.
- Keep an operational record: retain alert-log and monitoring history to spot recurring errors and capacity trends, and review destination configuration after storage, network, or database changes.
The cited documentation spans Oracle Database 19c, 21c, and 26ai error guidance, Database 26 reference views, 12c archive administration guidance, and Enterprise Manager 24.1 metrics. Check the documentation for the versions actually deployed before relying on exact view columns or monitoring behavior.
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