[Opensim-users] OpenSim crashing why?

Tue May 4 07:56:37 UTC 2010

Hi

The Linux command that finally did the trick was:

netstat -anput

Hi

This showed that OpenSim was maintaining over 900 connections to the
remote IP 94.169.170.24

[opensim at vleinternal ~]$ host 94.169.170.24
24.170.169.94.in-addr.arpa domain name pointer
cpc3-croy18-2-0-cust535.croy.cable.virginmedia.com.

By restarting OpenSim and blocking 94.169.170.24 in /etc/hosts.deny
these connections, which I suspect were crashing the simulator
periodically, have gone away.

Does anyone know what could cause all these open connections???

Thanks for all the help and advice

Clive

On Mon, May 3, 2010 at 8:25 PM,  <opensim-users-request at lists.berlios.de> wrote:
> Send Opensim-users mailing list submissions to
>        opensim-users at lists.berlios.de
> ------------------------------
>
> Message: 4
> Date: Mon, 3 May 2010 21:25:34 +0200
> From: "Tedd Hansen" <tedd at konge.net>
> To: <opensim-users at lists.berlios.de>
> Subject: Re: [Opensim-users] OpenSim crashing why?
> Message-ID: <004901caeaf6$691ea1b0$3b5be510$@net>
> Content-Type: text/plain;       charset="us-ascii"
>
> Hi
>
> netstat command will do that for you.
> Linux: netstat -nlap | less
> Windows: netstat -anb | more
>
> debian5:~# netstat -nlap | grep tcp | grep :8002
> tcp        0      0 0.0.0.0:8002            0.0.0.0:*               LISTEN
> 13841/mono
>
> Br,
>  Tedd
>
> -----Original Message-----
> From: opensim-users-bounces at lists.berlios.de
> [mailto:opensim-users-bounces at lists.berlios.de] On Behalf Of Clive Gould
> Sent: 3. mai 2010 21:22
> To: opensim-users at lists.berlios.de
> Subject: Re: [Opensim-users] OpenSim crashing why?
>
> Hi
>
> Justin wrote: "By the look of it, something in OpenSim is failing to
> close connections.  After 24 hours, the HttpServer embedded in OpenSim
> eventually finds that it runs out of sockets to play with."
>
> OpenSim is still crashing periodically.
>
> Any idea how I can find out how many connections the HTTP Server
> embedded in OpenSim thinks it has open at any one time?
>
> Is there a command from the Linux command line that will show this?
> (I've tried ps and netstat without success)
>
> Thanks very much
>
> Clive
>
>
>> Message: 2
>> Date: Thu, 29 Apr 2010 23:38:49 +0100
>> From: Justin Clark-Casey <jjustincc at googlemail.com>
>> Cc: opensim-users at lists.berlios.de
>> Subject: Re: [Opensim-users] OpenSim crashing why?
>> Message-ID: <4BDA0A79.5020105 at googlemail.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Clive Gould wrote:
>>> Hi
>>>
>>> We're successfully using OpenSim for student project work at Bromley
> College.
>>>
>>> OpenSim 0.6.8 standalone has just started crashing on us every 24 hours
> or so.
>>>
>>> Logins are disabled and the OpenSim.log file fills up the CentOS home
>>> partition very quickly with error messages.
>>>
>>> Killing all processes owned by the opensim user, deleting the
>>> OpenSim.log file, restarting the vnc session and the opensim
>>> application cures the problem, until the next time.
>>>
>>> I append relevent excerpts from the error log to this message.
>>>
>>> Does anyone have any idea what may be causing this??
>>
>> By the look of it, something in OpenSim is failing to close connections.
> After 24 hours, the HttpServer embedded in OpenSim eventually finds that it
> runs out of sockets to play with.
>>
>> I'm surprised to see this in standalone mode.  Are you doing something
> with OpenSim in standalone mode that requires outbound connections (e.g.
> remote database, groups, etc.), or perhaps a script that regularly
> establishes an outbound connection?
>>
>> If this has just started crashing after being fine before then it suggests
> that something has changed locally to reveal a bug in OpenSim.
>>
>> -- Justin
>>
>>>
>>> Thanks
>>>
>>> Clive
>>>
>>> 2010-04-29 16:55:47,776 DEBUG - OpenSim.Region.Framework.Scenes.Scene
>>> [Scene] Adding new agent India Airie to scene Rookery_NW
>>> 2010-04-29 16:55:47,777 DEBUG - OpenSim.Region.Framework.Scenes.Scene
>>> [APPEARANCE]: Appearance not found in Rookery_NW, returning default
>>>
>>> 2010-04-29 16:55:55,132 DEBUG -
>>> OpenSim.Region.Framework.Scenes.SceneObjectGroup [SCENE]: Storing
>>> Primitive, 204f5d0d-a994-4d61-8fb1-4b8d3af433fd in Rookery_
>>> SW
>>> 2010-04-29 16:56:14,262 DEBUG -
>>> OpenSim.Region.Framework.Scenes.SceneObjectGroup [SCENE]: Storing
>>> Primitive, 9b4c39ad-eebe-4417-9fd9-12a3994f17bc in Rookery_
>>> SW
>>> 2010-04-29 16:57:30,449 DEBUG -
>>> OpenSim.Region.Framework.Scenes.SceneObjectGroup [SCENE]: Storing
>>> Primitive, 88551bb8-3fa2-4bd9-a2fb-78c74bf45f55 in Rookery_
>>> SW
>>>
>>> 2010-04-29 17:16:15,070 DEBUG -
>>> OpenSim.Region.Framework.Scenes.SceneObjectGroup [SCENE]: Storing
>>> Primitive, 9b4c39ad-eebe-4417-9fd9-12a3994f17bc in Rookery SW
>>>
>>> 2010-04-29 17:17:11,209 ERROR -
>>> OpenSim.Framework.Servers.HttpServer.BaseHttpServer [BASE HTTP
>>> SERVER]: HttpServer.HttpListener had an exception
>>> System.Net.Sockets.SocketException: Too many open files
>>>   at System.Net.Sockets.Socket.Accept () [0x00000]
>>>   at System.Net.Sockets.Socket+Worker.Accept () [0x00000]
>>> 2010-04-29 17:17:11,255 ERROR -
>>> OpenSim.Framework.Servers.HttpServer.BaseHttpServer [BASE HTTP
>>> SERVER]: HttpServer.HttpListener had an exception
>>> System.Net.Sockets.SocketException: Too many open files
>>>   at System.Net.Sockets.Socket.Accept () [0x00000]
>>>   at System.Net.Sockets.Socket+Worker.Accept () [0x00000]
>>> 2010-04-29 17:17:11,273 ERROR -
>>> OpenSim.Framework.Servers.HttpServer.BaseHttpServer [BASE HTTP
>>> SERVER]: HttpServer.HttpListener had an exception
>>> System.Net.Sockets.SocketException: Too many open files
>>>   at System.Net.Sockets.Socket.Accept () [0x00000]
>>>   at System.Net.Sockets.Socket+Worker.Accept () [0x00000]
>>> ockets.SocketException: Too many open files
>>>   at System.Net.Sockets.Socket.Accept () [0x00000]
>>>   at System.Net.Sockets.Socket+Worker.Accept () [0x00000]
>>>
>>
>>
>> --
>> Justin Clark-Casey (justincc)
>> http://justincc.org
>> http://twitter.com/justincc