Samba unlock open file

This boolean option controls whether an incoming session setup should kill other connections coming from the same IP. This matches the default Windows behavior. Setting this parameter to yes becomes necessary when you have a flaky network and windows decides to reconnect while the old connection still has files with share modes open.

These files become inaccessible over the new connection. The client sends a zero VC on the new connection, and Windows kills all other connections coming from the same IP. This way the locked files are accessible again. Please be aware that enabling this option will kill connections behind a masquerading router. Edit : I just thought over another possible solution. You could do something like this on the share in question. Some very clever people at Samba decided to remove this option and there is no replacement for it.

I was running into a similar problem, a client crashed while copying a large file and the file was locked after the reboot. Luckily this does not happen very often, but still it's quite annoying having to kill the samba process.

It won't help much anyway, as the man page now says, that it only works with SMB1 which shouldn't be used any more and does nothing on SMB2 and SMB3 connections, the only way left to handle this is mentioned in the thread linked by Micheal.

I don't know the rationale behind the removal and what's so bad about reset on zero vc , I would consider using tcp timeout for this purpose more like a hack. Anyway something reasonable could be e. Note that this increases the load on your network, but I doubt that it's even noticeable even with a lot of clients. The default oplock type is Level1.

Level2 oplocks are enabled on a per-share basis in the smb. Alternately, you could disable oplocks on a per-file basis within the share:. If you are experiencing problems with oplocks, as apparent from Samba's log entries, you may want to play it safe and disable oplocks and Level2 oplocks. Disabling Kernel Oplocks Kernel oplocks is an smb. This parameter addresses sharing files between UNIX and Windows with oplocks enabled on the Samba server: the UNIX process can open the file that is Oplocked cached by the Windows client and the smbd process will not send an oplock break, which exposes the file to the risk of data corruption.

If the UNIX kernel has the ability to send an oplock break, then the kernel oplocks parameter enables Samba to send the oplock break. Kernel oplocks are enabled on a per-server basis in the smb. While googling my error, I crossed this page a lot. Maybe some one had the same problem and stranded also here:. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. How to prevent samba from holding a file lock after a client disconnects? Ask Question. Asked 11 years, 1 month ago. If list is very long and you are struggling to find the file run: smbstatus grep -i filename. This will filter the smbstatus results and return only lines with your locked file. Now run smbstatus again or return to the first query and in the top table find the user with the PID number you noted.

This will be the user the who is locking the file. You can also check what other files this user has opened by inspecting smbstatus results or running:. Currently, our procedure for removing the lock which allows the user to use Outlook again is: Manually open a terminal session Go to the users dir holding the outlook. Improve this question. Highly Irregular Highly Irregular 2, 5 5 gold badges 22 22 silver badges 23 23 bronze badges.

Maybe it would be better to solve problem with Outlook? Outlook just gives an error when the user tries to reopen it after this has happened. I think the lock disappears after about 15mins or so, but that's too long for a lot of users. Or did you mean solve it by using something else?

Believe me, I would be doing that if I had the choice! Check why Outlook is crashing. If it crash regularly it means that there is a reson - maybe there are some information in Event logs, maybe it crashes on some operation on Samba share. Try running smbd in debug mode - maybe you can find some regularities. Also check for error code in MS KB One additional reason we get a large number of locked pst's all at once is when there's a brief network or file system outage and users' pcs can no longer connect to the server.

In this case, Outlook closes semi-gracefully, but still won't reopen until the lock is cleared. In other cases, maybe once every 2nd day amongst 80 staff Outlook just crashes. Trying to catch this with Samba in debug mode might be a stretch. I can't recall any error code being given in either case, but I'll try to remember to look for it next time I see it happen.

Thanks for the suggestions — Highly Irregular. Add a comment. Active Oldest Votes. Improve this answer.