ECS: GeoDrive: Error status returned when oplock request is denied
Summary: GeoDrive prompts "Error status returned when oplock request is denied" errors when uploading some files.
Symptoms
GeoDrive generates messages like below:
Site=hostname File=atmos.cpp Line=16612 Revision=-v1.2.3.1 Severity=WARNING Category=0 Process=Server Error=3221225698:3221225698 - Error status returned when oplock request is denied. Time=9/19/2018 2:11:27 PM 913 ms Thread=480 File open error: d:\programdata\cifs-ecs data\e_drive\temp\123\l_b094.tmp.png
Cause
Resolution
This means that GeoDrive is doing a file upload, and it is trying to open the file and getting this error. This does not mean a GeoDrive issue, but a client issue.
This error means that some other process has an oplock on the file. GeoDrive wants to upload the file, so it tries opening it. This sends an oplock break to the client. The client should flush memory-resident data to disk and confirm that the oplock is gone, but it is not responding to the oplock break request. GeoDrive waits a while and never gets the oplock break so its open fails.
The problem is most likely in the client that is holding the oplock. Considering rebooting that client.
Additional Information
Further information about oplock:
https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ni-winioctl-fsctl_request_oplock
