What's an oplock_break?

[Rob Naccarato]

I've been seeing these in my logs files ever since I upgraded to 1.9.18p10
and turned on oplock support for users' home directories:

--snip --
1998/10/07 10:05:44 oplock_break: receive_smb timed out after 30 seconds.
1998/10/07 10:05:44 oplock_break failed for file Start Menu/Open Office 
Document.lnk (fnum = 14, dev = 808446, inode = 45cb8).
1998/10/07 10:05:44 oplock_break: client failure in break - shutting down
this smbd.
--snip --

Is this something to be worried about?  What effects does this have on
client-side performance? Note that I have set keepalives = 30 in my
smb.conf file - could that be the cause?

Thanks in advance.


Rob Naccarato           "Civilized men are more discourteous than savages
Sys Admin               because they know they can be impolite without
Sheridan College        having their skulls split, as a general thing."
Oakville, Ont. Canada                      - Robert E. Howard