[Opensim-users] Intermittent crashing - System.OutofMemoryException
Fleep Tuque
fleep513 at gmail.com
Mon Feb 20 12:26:03 UTC 2012
Wow, it really was that simple. I successfully split off a few regions
into a separate instance on FleepGrid with no trouble at all.
The key, as Gary mentioned, was uncommenting the http_listener_port line
(267 in my opensim.ini file) and incrementing the TCP port (in my case to
9001) for the new instance.
Thanks Gary! I'll have to work out how to split the regions up logically
for our UCSIM grid but I'm surprised it's that simple! Yay! :)
- 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
(513) 556-3018
http://ucsim.uc.edu
On Mon, Feb 20, 2012 at 6:48 AM, Gary Banham <banham1 at telus.net> wrote:
> PS****
>
> just an additional note I think the problem is the single instance of
> Opensim will only access 2 gigs of memory ****
>
> with a large number of regions and lots of building and scripts the single
> instance can't count that high it hits a wall****
>
> by placing regions over a number of instances each can use 2 gigs****
>
> so yes you use more memory EG 5 instances could potentially use 10 gigs of
> memory but one instance only address 2 Gigs****
>
> ** **
>
> TC****
>
> Gary****
>
> ** **
>
> *From:* opensim-users-bounces at lists.berlios.de [mailto:
> opensim-users-bounces at lists.berlios.de] *On Behalf Of *Fleep Tuque
>
> *Sent:* Monday, February 20, 2012 4:34 AM
> *To:* opensim-users at lists.berlios.de
> *Subject:* Re: [Opensim-users] Intermittent crashing -
> System.OutofMemoryException****
>
> ** **
>
> I'm worried that you may be right about that and it's just a matter of
> time before adding more content becomes a problem, in which case it sounds
> like perhaps instead of running all the regions on a single opensim
> instance I should split them up across several as Gary mentioned above?***
> *
>
> ** **
>
> I'm not sure exactly how that works, I guess, and I'm trying to understand
> how that would use less memory instead of more.. Would I simply copy the
> contents of the opensim directory to multiple locations and break the
> regions up in the regions.ini file or..? ****
>
> ** **
>
> I'd like to experiment with it on FleepGrid first before I hose our campus
> install, but the HGAC group is coming for a visit in a couple days so if
> anyone has pointers about how to do that splitting up process before I
> break anything, I'm all ears. :)****
>
> ** **
>
> - 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****
>
> (513) 556-3018****
>
> ** **
>
> http://ucsim.uc.edu****
>
> ** **
>
> ** **
>
> On Thu, Feb 16, 2012 at 10:19 PM, Justin Clark-Casey <
> jjustincc at googlemail.com> wrote:****
>
> I would actually be rather surprised if errors during the OAR import were
> related to your memory problems. I think that it's more likely that the
> content of the OAR in some way pushed you beyond memory boundaries and
> wiping it has reset things.
>
> Still, if the problem is solved then that's what matters :)****
>
>
>
> On 16/02/12 22:50, Fleep Tuque wrote:****
>
> Hi all,
>
> After going through the log files and trying to figure out what changed in
> the time period when the out of memory errors
> began, we traced it back to an OAR file import. (Thanks to whoever
> suggested that might be an issue earlier in this
> thread!)
>
> I'd ported over a copy of the FleepGrid Plaza region so my students could
> easily grab some of the freebies I'd created,
> and it looks like something got horked during the import to the UCSIM grid:
>
> 012-02-07 09:12:05,991 ERROR -
> Flotsam.RegionModules.AssetCache.FlotsamAssetCache [FLOTSAM ASSET CACHE]:
> Failed to
> update cache for asset 3d0b3a52-40e5-48fe-8595-b72e163917fa. Exception
> The process cannot access the file
> 'c:\Opensim\bin\assetcache\3d0\3d0b3a52-40e5-48fe-8595-b72e163917fa'
> because it is being used by another process. at
> System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
> at System.IO.FileStream.Init(String path, FileMode mode, FileAccess
> access, Int32 rights, Boolean useRights,
> FileShare share, Int32 bufferSize, FileOptions options,
> SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
> at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess
> access, FileShare share, Int32 bufferSize)
> at System.IO.File.OpenFile(String path, FileAccess access,
> SafeFileHandle& handle)
> at System.IO.File.SetLastAccessTimeUtc(String path, DateTime
> lastAccessTimeUtc)
> at
> Flotsam.RegionModules.AssetCache.FlotsamAssetCache.UpdateFileCache(String
> key, AssetBase asset)
>
> Shortly after that, we begin to see the first out of memory errors..
>
> 2012-02-07 09:15:17,453 DEBUG -
> OpenSim.Region.ScriptEngine.XEngine.XEngine [XEngine] Loaded script
> LK-Stool-Sit
> #2.poseball-zero-lag, script UUID e73e1114-297a-43a7-b4b8-dd423cd83b95,
> prim UUID 2ae59628-943d-49ec-9673-ee3465bd0242 @
> <168.1464, 156.7953, 26.90887>.UCSIM Staff 1
> 2012-02-07 09:15:17,984 ERROR -
> OpenSim.Region.ScriptEngine.XEngine.XEngine [XEngine] Exception creating
> app domain:
> System.OutOfMemoryException: Exception of type
> 'System.OutOfMemoryException' was thrown.
> at System.AppDomain.nCreateDomain(String friendlyName, AppDomainSetup
> setup, Evidence providedSecurityInfo, Evidence
> creatorsSecurityInfo, IntPtr parentSecurityDescriptor)
> at System.AppDomain.CreateDomain(String friendlyName, Evidence
> securityInfo, AppDomainSetup info)
> at OpenSim.Region.ScriptEngine.XEngine.XEngine.DoOnRezScript(Object[]
> parms)
>
> And we see those out of memory errors stack up until eventually the
> application crashed..
>
> When we realized it was probably the OAR file that was the source of the
> issue, I wiped the region by importing a fresh
> "blank" OAR and we haven't had the out of memory exception since.
>
> Looks like the problem is resolved and super thanks again to everyone who
> helped with pointers and info in this thread -
> much appreciated!
>
> - 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 Thu, Feb 16, 2012 at 2:16 PM, R.Gunther <rigun at rigutech.nl <mailto:
> rigun at rigutech.nl>> wrote:
>
> There's a 3e option. Munin.
> http://munin-monitoring.org/
>
>
> On 2012-02-16 16:49, BlueWall wrote:
>
> The rrdtools is very good for storing and organizing the data for
> statistics and it will also produce graphs
> from that data. It relies on external scripts to collect the data -
> that's where Cacti comes in. It has the
> scripts and templates to graph your system (and snmp devices) in
> the distribution. I have done it on Linux and
> they claim to work on Windows too.
>
> You could also write scripts and templates to graph OpenSim. I
> haven't tried that, though. There is
> documentation included in the distro, and scattered across the
> Cacti user forums.
>
> -BlueWall
>
> On 02/16/2012 09:55 AM, Rick Anderson wrote:
>
> One question about Cacti, and RDDTools. The sites describe them
> as
> general purpose graphing tools. Is there any documentation or
> tutorial
> for configuring them to monitor system status. Maybe, it's
> really
> simple, and I'm over complicating it.
>
> -_Rick
>
> ****
>
> _________________________________________________****
>
>
> Opensim-users mailing list
> Opensim-users at lists.berlios.de <mailto:Opensim-users at lists.berlios.de>*
> ***
>
> https://lists.berlios.de/__mailman/listinfo/opensim-users <
> https://lists.berlios.de/mailman/listinfo/opensim-users>****
>
>
>
>
>
>
> _______________________________________________
> Opensim-users mailing list
> Opensim-users at lists.berlios.de
> https://lists.berlios.de/mailman/listinfo/opensim-users****
>
> ** **
>
>
> --
> Justin Clark-Casey (justincc)
> http://justincc.org/blog
> http://twitter.com/justincc****
>
> _______________________________________________
> Opensim-users mailing list
> Opensim-users at lists.berlios.de
> https://lists.berlios.de/mailman/listinfo/opensim-users****
>
> ** **
>
> _______________________________________________
> Opensim-users mailing list
> Opensim-users at lists.berlios.de
> https://lists.berlios.de/mailman/listinfo/opensim-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://opensimulator.org/pipermail/opensim-users/attachments/20120220/084ed6b3/attachment.html>
More information about the Opensim-users
mailing list