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ERROR_LOG_CONTAINER_OPEN_FAILED
Log service encountered an error when attempting open a log container.
ERROR_LOG_CONTAINER_OPEN_FAILED is Win32 error 6641 (0x000019F1) and concerns opening a CLFS container file or stream.
Where the result appears
- opening a log after reboot.
- attaching an archived or restored log.
- enumerating containers for maintenance.
- creating a client context against an existing CLFS log.
What to verify
Verify whether the container named by log metadata can be opened with the required access and sharing mode. Check resolved container path, desired access and sharing flags, and service token and effective ACL.
Likely causes
- the container was moved, renamed, or deleted.
- ACLs no longer permit the service identity to open it.
- sharing or oplock state conflicts with the requested access.
- the volume or mount point is unavailable.
- base-log metadata references a container that was not restored.
Troubleshooting steps
- Collect resolved container path.
- Record desired access and sharing flags.
- Correlate service token and effective ACL with the owning application log, CLFS-related System events, storage events, and any transaction or recovery trace.
Handling, retry, and recovery
Restore the expected container path and permissions or restore the log as a coordinated set; do not create an empty replacement over missing recovery data.
Related errors
ERROR_LOG_CONTAINER_READ_FAILED starts with an open container and fails during data access; this code prevents the container from being opened at all.
Example
A restore copies the base log but omits one container stream. CLFS identifies the missing descriptor during open; restoring the matching container set resolves the error without rebuilding an empty log.
References
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