Re: ADV: Re: The missing link -

[David Cureton <david.cureton@catapult.com>]

Hi Trond and List,
  =20
      It happened again today. The /server/Staff link went missing.

    "ls -l /server/Staff" explicitly specifying the missing link=20
returned an  "No such file or directory" error. =20
  =20
    "ls -l" in /server  on the effected client shows all but the=20
/server/Staff link.

        Previously I have monitored the NFS traffic where the client=20
does a getattr on the directory /server/Staff.
    Then if proceeds to getattr on the contents of the directory.=20
(Assuming it does not issue a getattr for /server/Staff. It is difficult=20
to map
the raw file handles onto the filenames. How can I do this?)

    Since the client is only doing getattr on the files and directories=20
I am assuming the client thinks that it's cache is OK  and proceeds with=20
it's local
    version of the truth. One that does not include the /server/Staff lin=
k.

    Therefore I tried the following:
       On the NFS server:  'touch test' in the /server diectory=20
therefore causing the client cache of /server to be invalid.
  =20
    On the client ls -la /server...... low and behold  the /server/Staff=20
link is back.

    Therefore it appears to be a client side issue.  It appears that the=20
client forgets about /server/Staff in it's cache?  Anyone else had this=20
issue?

Thanks,
    David





Trond Myklebust wrote:

>m=E5 den 02.05.2005 Klokka 17:49 (+1000) skreiv David Cureton:
>
> =20
>
>>However on occasion we have noticed that the /server/Staff link just
>>disappears for some SuSE9.2 clients and the user no longer has access t=
o
>>there home directory. All other clients still have the link available
>>and they are fine.
>>   =20
>>
>
>What kind of filesystem are you exporting?
>
>When this behaviour happens, what does the client report when you do an
>'ls -l' on /server/Staff?
>
>Cheers,
>  Trond
> =20
>



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