[Samba] ok, so oplocks: good or bad?

Brandon Lederer brandonl at hms4emc.com
Fri Jun 20 19:49:48 GMT 2003

My comment/question leans towards Windows here.... I cant turn oplocks off
in Windows (to my knowledge).  Therefore they are always ON.  If this is the
case, And they dont cause any problems, then WHY do we have to turn them off
in Samba?  Do they not work properly?

-----Original Message-----
From: Mark Roach [mailto:mrroach at okmaybe.com]
Sent: Friday, June 20, 2003 2:40 PM
To: John H Terpstra
Cc: samba at lists.samba.org; Jonathan Johnson
Subject: Re: [Samba] ok, so oplocks: good or bad?

On Fri, 2003-06-20 at 15:38, John H Terpstra wrote:
> On Fri, 20 Jun 2003, Jonathan Johnson wrote:
> > OK, I don't have a strong understanding of oplocks, but I'm sure someone
> > will correct me where I go wrong.
> Those interested in the whole OpLock story might benefit from reading
> chapter 14 'File and Record Locking" of:
> http://samba.org/~jht/NT4migration/Samba-HOWTO-Collection.html
> From this coverage it should be obvious that file locking affects a
> complex interaction of Client and Server protocols and configuration
> settings. Please draw your own conclusions.

Hi, John. I'm pretty sure I "get" what oplocks are for and why they are
good, I guess my question would be more along the lines of "do they work
properly in samba?" along with the error message that prompts the

I think the question could be further distilled to "Is this an example
of oplocks not working properly, or is it something else entirely?" I
hope my question makes more sense worded that way. 

Thanks very much,

Mark Roach

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