[OpenAFS] File locking
06 Jan 2003 22:02:59 -0500
Synchronization is based on file open/close, not read/write. If
client 1 close()es the file before client 2 open()s it, then it will
see the new one. Otherwise it will see the old one.
"Jayme Cox" <firstname.lastname@example.org> writes:
> I have a question about file locking:
> We have 15 or so openAFS clients (mix of linux and windows) mounting an
> AFS drive over the internet. An application writes a file to the openAFS
> server from client #1 and another application begins to read that same
> file on client #2 microseconds later.
> What version of the file will client #2 read?
> I guess my question boils down to:
> Does client #2 ask the server if the file is being written (changed)
> every time it does a read? Or does it only ask when it's gotten a 'this
> file has been modified notification'?
> Jayme Cox
> Sr Unix Sys Admin
> Kabira Technologies
> One McInnis Parkway
> San Rafael, Ca 94903
> (415) 446-5041
> OpenAFS-info mailing list
Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
Member, MIT Student Information Processing Board (SIPB)
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