stat:could not read child node: internal error: Missing parent ID on node

[oliver124810]

stat:could not read child node: internal error: Missing parent ID on node

I am uploading a lot of files using the Windows Desktop Client. Two of them fails to upload. The error in the server log is:

stat:could not read child node: internal error: Missing parent ID on node

• This happens with 2 files only, among the thousands I uploaded.
• They are are PDF files. In the same directory ("Papers"), there are around 200 other PDF files that were uploaded successfully
• The 2 problematic files have nothing specific
• Deleting the "Papers" directory and repeating leads to the same errors about the same 2 files among the 200

Steps to reproduce

Good question...

Expected behavior

No error

Actual behavior

The error described above.

Setup

• Docker with image 63a457e77616 (5.0.1). I cannot update it right now
• The server data is stored on a local ext4 partition

Additional context

As a workaround, I created a "test" directory and copied there "Papers" directory. They were uploaded successfully. So I deleted the original "Papers" directory and moved "test/Papers" to replace it.

I am aware that this issue might be difficult to reproduce and solve. Still, some more information in the log files or some instructions what to do to troubleshoot the issue would be very helpful in case it occurs again, to me or someone else.

[oliver124810]

During the troubleshooting, I also tried to upload the file with a different name and rename it afterwars to the original name. It caused the same error:

opencloud-1      | {"level":"debug","service":"frontend","host.name":"ace187ad6389","pkg":"rhttp","traceid":"532f59af27b0030797d57c34650f5a1e","request-id":"a23b6f9d-1cb0-4964-b71d-1ad1af707cd3","method":"MOVE","head":"remote.php","tail":"/dav/spaces/227dd25c-4648-4c59-9c5e-a4295c91473b$a92e4587-39ee-45d3-a336-3effe4c71d87/.../Papers/newname.pdf","time":"2026-04-13T09:45:36Z","line":"github.com/opencloud-eu/reva/v2@v2.42.1/internal/http/services/owncloud/ocdav/ocdav.go:195","message":"http routing"}
opencloud-1      | {"level":"debug","service":"frontend","host.name":"ace187ad6389","pkg":"rhttp","traceid":"532f59af27b0030797d57c34650f5a1e","request-id":"a23b6f9d-1cb0-4964-b71d-1ad1af707cd3","spaceid":"227dd25c-4648-4c59-9c5e-a4295c91473b$a92e4587-39ee-45d3-a336-3effe4c71d87","path":"/.../Papers/newname.pdf","overwrite":"F","time":"2026-04-13T09:45:36Z","line":"github.com/opencloud-eu/reva/v2@v2.42.1/internal/http/services/owncloud/ocdav/move.go:189","message":"move"}
opencloud-1      | {"level":"error","service":"frontend","host.name":"ace187ad6389","pkg":"rhttp","traceid":"532f59af27b0030797d57c34650f5a1e","request-id":"a23b6f9d-1cb0-4964-b71d-1ad1af707cd3","spaceid":"227dd25c-4648-4c59-9c5e-a4295c91473b$a92e4587-39ee-45d3-a336-3effe4c71d87","path":"/.../Papers/newname.pdf","status":{"code":15,"message":"stat:could not read child node: internal error: Missing parent ID on node","trace":"6919bbeabc333b5c72887905877640a4"},"code":500,"time":"2026-04-13T09:45:36Z","line":"github.com/opencloud-eu/reva/v2@v2.42.1/internal/http/services/owncloud/ocdav/errors/error.go:178","message":"Internal Server Error"}
opencloud-1      | {"level":"info","service":"proxy","proto":"HTTP/1.1","request-id":"a23b6f9d-1cb0-4964-b71d-1ad1af707cd3","traceid":"6919bbeabc333b5c72887905877640a4","remote-addr":"10.4.99.2","method":"MOVE","status":500,"path":"/remote.php/dav/spaces/227dd25c-4648-4c59-9c5e-a4295c91473b$a92e4587-39ee-45d3-a336-3effe4c71d87/.../Papers/newname.pdf","duration":10.521482,"bytes":0,"time":"2026-04-13T09:45:36Z","line":"github.com/opencloud-eu/opencloud/services/proxy/pkg/middleware/accesslog.go:34","message":"access-log"}