500 - Internal server error

500 - Internal server error

  

Just few minutes ago we got the message below on all our front-ends. Service Center was still working.

500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

We restarted OutSystems services and didnt help.

Then we restarted IIS and sites came back online.

Do you know what could be the cause fro this? It's strange because Service Center was still online and all other apps not.

Thank you in advance!

Carolina


Error Detail
Back to Log
Id:
3bb52664-f7fd-4df9-9a04-a1c3bdd01218
Time of Log:
09-04-2018 14:24:11
eSpace:
SARISABasetheme
Tenant:
Users
User:

Session Id:
No session
Server:
SRVAPP-WEB04P
Module:
Global
Message:


Exception of type 'System.Web.HttpException' was thrown.


Environment InformationeSpaceVer: 17 (Id=11152, PubId=14115, CompiledWith=9.1.611.0)
RequestUrl: http://sarisa.dbschenker.com/SARISABasetheme/_Default.aspx (Method: GET)
AppDomain: /LM/W3SVC/1/ROOT/SARISABasetheme-2-131676858898474891
FilePath: D:\OutSystems\Platform Server\running\SARISABasetheme.01240163968\
Locale: en-US
DateFormat: dd-MM-yyyy
PID: 5236 ('w3wp', Started='4/8/2018 6:31:01 PM', Priv=1071Mb, Virt=19274Mb)
TID: 35
Thread Name:
.NET: 4.0.30319.36399
Stack:
[1] Exception of type 'System.Web.HttpException' was thrown.
   at System.Web.SessionState.SessionStateModule.EndAcquireState(IAsyncResult ar)
   at System.Web.HttpApplication.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar)

[2] Exception of type 'System.OutOfMemoryException' was thrown.
   at OutSystems.HubEdition.RuntimePlatform.SessionState.SqlSessionStateStore.ReleaseItemExclusive(HttpContext context, String id, Object lockId)
   at System.Web.SessionState.SessionStateModule.GetSessionStateItem()
   at System.Web.SessionState.SessionStateModule.PollLockedSessionCallback(Object state)

Hello Carolina,

Looks like you ran out of memory.

How many servers are we talking about? How much RAM do they have?

Are they running timers?

Have you discarded infinite loops?