[Opensim-users] Flotsam asset cache error - process cannot access file because it is being used by another process

Thu Apr 19 13:01:59 UTC 2012

I am also seeing the EOC warning on FleepGrid, now, not just on the
University of Cincinnati campus grid system, and that's running on a 32bit
Windows XP box (also opensim version 0.7.3):

08:34:56 - [ENTITY TRANSFER MODULE]: Starting to inform client about
neighbour 9
015, 9013(74.83.148.18:9002)
Region (root) # [WARNING]: EOC marker not found. Codestream is corrupted.
[WARNING]: EOC marker not found. Codestream is corrupted.
[WARNING]: EOC marker not found. Codestream is corrupted.
[WARNING]: EOC marker not found. Codestream is corrupted.
08:38:42 - [REMOTE SIMULATION CONNECTOR]: QueryAccess to
http://fleepgrid.com:90
00/agent/593dd3d9-9fb2-4bbe-885b-a8998a02e0fe/a6a2136d-daa1-4f4e-a136-fd26c913ec
fa/ returned True version SIMULATION/0.1 (SIMULATION/0.1)
08:38:42 - [ENTITY TRANSFER MODULE]: Crossing agent Ceecee Flores to
9013-9013 r
unning version SIMULATION/0.1

I've never filed a report on the Mantis before, so I guess I'll try to
figure out how to do that.

Thanks,

- Fleep

Chris M. Collins (SL/OS: Fleep Tuque)
Center for Simulations & Virtual Environments Research (UCSIM)
UCIT Instructional & Research Computing
University of Cincinnati
406A Zimmer Hall
315 College Drive
PO BOX 210088
Cincinnati, OH 45221-0088
chris.collins at uc.edu
(513) 556-3018

http://ucsim.uc.edu

On Wed, Apr 18, 2012 at 6:59 PM, Justin Clark-Casey <
jjustincc at googlemail.com> wrote:

> I think the EOC marker problems are usually associated with corrupt jpeg
> 2000 textures, though I think there may also be a bug on 64-bit that causes
> issues here.
>
> I'm not sure why you're seeing ODE errors.  I would predict that these
> would not go away when reverting to 0.7.2 but it would be something to at
> least try.
>
> The file sharing issues when loading an OAR may be due to a weakness in
> the flotsam cache code which allows race conditions when cache writing is
> launched on its own delegate.  This should not be fatal since at least one
> thread will have correctly cached the asset.  However, it would be nice to
> have the failure details in a Mantis.
>
> I think you've previously said that you have to have physical prims.
>  However, if you want to narrow down the problem you could try flipping the
> physical_prim = false switch in [Startup] in OpenSim.ini and see if that
> does alleviate the problem.
>
>
> On 18/04/12 20:53, Fleep Tuque wrote:
>
>> Hmm, I dunno, something else seems to be going on, after the OAR finished
>> loading, I see:
>>
>> Region (UCSIM Staff 1) # [WARNING]: EOC marker not found. Codestream is
>> corrupte
>> d.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>> [WARNING]: EOC marker not found. Codestream is corrupted.
>>
>> This on top of the ODE Scene errors that seem to persist whether physical
>> prims are enabled or not, and whether I start
>> the process with opensim.exe or opensim.32bitlaunch.exe..  0.7.3. is
>> feeling pretty glitchy at the moment.
>>
>> I'm thinking of reverting to 0.7.2 at least on the campus grid, it seemed
>> more stable.  The only thing stopping me is
>> the thought of having to re-re-fix all those chairs that will have to be
>> re-re-re-fixed again when we upgrade.  ;)
>>
>> - Chris/Fleep
>>
>>
>> Chris M. Collins (SL/OS: Fleep Tuque)
>> Center for Simulations & Virtual Environments Research (UCSIM)
>> UCIT Instructional & Research Computing
>> University of Cincinnati
>> 406A Zimmer Hall
>> 315 College Drive
>> PO BOX 210088
>> Cincinnati, OH 45221-0088
>> chris.collins at uc.edu <mailto:chris.collins at uc.edu>
>>
>> (513) 556-3018
>>
>> http://ucsim.uc.edu
>>
>> On Wed, Apr 18, 2012 at 3:46 PM, Garmin Kawaguichi <
>> garmin.kawaguichi at magalaxie.**com <garmin.kawaguichi at magalaxie.com>
>> <mailto:garmin.kawaguichi@**magalaxie.com<garmin.kawaguichi at magalaxie.com>>>
>> wrote:
>>
>>    __
>>
>>    I found that kind of error when I worked these days on load/save oar;
>>  Look at Mantis 0005970
>>    I suppose a (temp?) file created by load oar was not released and an
>> other process tries to open it.
>>    If you found where exactly it was first used, try to add
>>    typeoffile.Dispose();
>>    GCI
>>
>>        ----- Original Message -----
>>        *From:* Fleep Tuque <mailto:fleep513 at gmail.com>
>>        *Sent:* Wednesday, April 18, 2012 9:31 PM
>>        *Subject:* [Opensim-users] Flotsam asset cache error - process
>> cannot access file because it is being used by
>>
>>        another process
>>
>>        Anyone know why I would be seeing errors like this when trying to
>> upload an OAR file?
>>
>>        15:30:25 - [FLOTSAM ASSET CACHE]: Failed to update cache for asset
>> faecc7e2-60e1
>>        -e9a9-e974-927ad18e8b51.  Exception The process cannot access the
>> file 'c:\opens
>>        im7_0.7.3\bin\assetcache\fae\**faecc7e2-60e1-e9a9-e974-**927ad18e8b51'
>> *because it is*
>>        * being used by another process.*    at
>> System.IO.__Error.WinIOError(**Int32 errorCo
>>
>>        de, String maybeFullPath)
>>
>>
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>
>
> --
> Justin Clark-Casey (justincc)
> http://justincc.org/blog
> http://twitter.com/justincc
>
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