Hello, We are running into the problem in slower performance on oplock. Here is the oplock scenario.
- We are using 3.0.22. - Kernel oplock has been implemented on hp-ux 11v3. - smb.conf kernel oplocks = Yes oplock break wait time = 0 fake oplocks = No locking = Yes oplocks = Yes level2 oplocks = Yes oplock contention limit = 2 posix locking = Yes - Running a Windows application that have to access to data on Samba share. - Read data is ok. - A single user to write data is ok. - Multiple users to write data experience oplock delay. For example, two clients tried to edit data at the same time in the application, there are following processing from my observation: * The first open on a file with an exclusive oplock. * The second open on the same file needs to call defer_open() and send oplock break msg to itself. * Most of time, the msg can be received. Performance is OK. But sometimes for some reason, the msg couldn't be received. I don't know why. So there was a delay(probably 60s) after open_was_deferred(). After this, Windows client tried to send SMBntcreate to open it again. This time still failed. Since we have "Trying to delay for oplocks twice" in open_file_ntcreate(), it leaded to close the connection. - Whether IS the defer_open on the second open necessary? Because this is the same process, and the same file. - What kind of reasons to cause the smbd did not receive the break msg? - Is there any way to remove the delay, or a specific fix around this? Any help greatly appreciated. Thanks very much. -Ying -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba