Filed CR 6801332 Intermittent file change notification

Alan

On 02/04/09 08:58, Ross Smith wrote:
> Hi guys,
> 
> Well, it's been a while but I've just had another example of this happen.
> 
> This time it was on a snv_106 build, and the time is synchronised
> perfectly with the domain (I have ntpdate running as a cron job every
> 5 minutes, and checked it manually when this happened).
> 
> I had just moved a whole bunch of files using cut & paste in windows
> explorer.  When the move operation finished, the original folder was
> still visible until I hit F5 to manually refresh the display.
> 
> I had two explorer windows open at the time.  The new files had all
> appeared in the second window, but the main folder I was moving had
> not been removed from the other window.
> 
> I've never seen explorer need refreshing from a windows server, and it
> even works fine in Solaris the majority of the time, but there's
> definitely an intermittent bug of some kind affecting the file change
> notifications.
> 
> In fact, now I'm writing this, if I leave these two folders open, I'm
> getting problems with file change notification in one, but the other
> works perfectly.
> 
> In the window with problems, if I right-click to create a new folder,
> I get exactly the same effect as before - nothing appears.  After I
> hit F5, I can see the folder and rename it, but the rename doesn't
> show up either until I hit F5 again.
> 
> However, in the second window, creating new folders works perfectly.
> 
> I get the same effect moving files.  They appear automatically in one
> window, but don't disappear from the other.
> 
> If I close the first window down, and open a new explorer window to
> the same location, it works perfectly in both windows.
> 
> So whatever this is, it's intermittent in how it starts, but
> persistent once the problem has occurred, and it's specific to an
> individual instance of windows explorer.
> 
> Ross
> 
> 
> 
> On Tue, Dec 9, 2008 at 6:42 AM, Brent Jones <br...@servuhome.net> wrote:
>> On Thu, Dec 4, 2008 at 6:30 AM, Ross Smith <myxi...@googlemail.com> wrote:
>>> Well, it's repeatable, but I've no idea how lol.
>>>
>>> Just had exactly the same happen today after doing a lot of testing on
>>> the server, but despite spending another hour on it, I can't reproduce
>>> the problem.
>>>
>>> These machines are suffering from the VMware clock skew issue, so it
>>> might be related to that.  Probably safe to ignore this for now and
>>> I'll raise this again if I ever find what's actually causing it.
>>>
>>> Ross
>>>
>>>
>>>
>>> On Wed, Dec 3, 2008 at 7:38 PM, Ross Smith <myxi...@googlemail.com> wrote:
>>>> Hey guys,
>>>>
>>>> It looks like you're right, it's working perfectly every time now.
>>>>
>>>> I did the original testing on my own XP SP3 workstation, but I've just
>>>> gone and repeated the test on a whole bunch of machines (SP2 and SP3),
>>>> and it worked fine on all of them, and also now works fine on the
>>>> original workstation.
>>>>
>>>> I have been doing a lot of testing on this pool (disconnecting iscsi
>>>> drives and working in degraded mode to test recovery), which has been
>>>> causing a few CIFS errors as things timeout.  I'll see if I can get it
>>>> to reproduce this problem.
>>>>
>>>> Ross
>>>>
>>>>
>>>>> On Wed, Dec 3, 2008 at 7:04 PM, Afshin Salek <afshin.ardak...@sun.com> 
>>>>> wrote:
>>>>>> Ross,
>>>>>>
>>>>>> What Windows OS are you using?
>>>>>> Have you tried different Windows systems to see if the problem still
>>>>>> occurs?
>>>>>>
>>>>>> Afshin
>>>>>>
>>>>>> Alan M Wright wrote:
>>>>>>> On 12/03/08 10:42, Alan M Wright wrote:
>>>>>>>> On 12/03/08 01:43, Ross wrote:
>>>>>>>>> I'm not sure what's causing this, but I'm finding that the Solaris 
>>>>>>>>> CIFS
>>>>>>>>> shares don't update automatically like windows shares do.
>>>>>>>>>
>>>>>>>>> A couple of examples:
>>>>>>>>>
>>>>>>>>> If I right-click the folder and create a new file:
>>>>>>>>> - In windows, the new file appears, is selected, and I can simply type
>>>>>>>>> the name.  When I press enter it's renamed and appears in the window.
>>>>>>>>> - On a solaris share, no file appears until I manually refresh.  I 
>>>>>>>>> then
>>>>>>>>> have to select the file manually and rename it.  However, after 
>>>>>>>>> renaming it
>>>>>>>>> the file still appears with the old name until I hit refresh again.  
>>>>>>>>> If I
>>>>>>>>> try to delete the renamed file before hitting refresh I get an error 
>>>>>>>>> "Cannot
>>>>>>>>> delete file: Cannot read from source file or disk."
>>>>>>>>>
>>>>>>>>> Similarly, if I drag a file into a Solaris share, the file does not
>>>>>>>>> appear until I hit F5 to refresh the window.
>>>>>>>>>
>>>>>>>>> This will be a particular problem if we roll this out as Windows 
>>>>>>>>> doesn't
>>>>>>>>> have a refresh button in its explorer windows, and our users will 
>>>>>>>>> almost
>>>>>>>>> certainly not understand why their new files don't appear.
>>>>>>>> That sound strange.  We'll have a look at it.
>>>>>>> Ross,
>>>>>>>
>>>>>>> Our FVT team just tried that out and reported that it works as expected.
>>>>>>>
>>>>>>> Alan
>>>>>>> _______________________________________________
>>>>>>> cifs-discuss mailing list
>>>>>>> cifs-discuss@opensolaris.org
>>>>>>> http://mail.opensolaris.org/mailman/listinfo/cifs-discuss
>>> _______________________________________________
>>> cifs-discuss mailing list
>>> cifs-discuss@opensolaris.org
>>> http://mail.opensolaris.org/mailman/listinfo/cifs-discuss
>>>
>> I think this issue is very time related, I set the time wrong on
>> purpose on the CIFS server, and I saw this issue very frequently on
>> CIFS clients.
>> Synced the clock again to NTP, and haven't been able to reproduce it
>> again; however even with the time grossly incorrect, the issue was
>> still intermittent.
>>
>> I'll post again if I see the issue with correct time.
>>
>> --
>> Brent Jones
>> br...@servuhome.net
>>

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