AppDomain &&<number&&>' (&&<database&&>.dbo[runtime].527) Is Marked For Unload Due To Memory Pressure.
Mar 14, 2008
Please, help
Since a few days ago we are viewing these messages, several time at a day:
3/14/2008 2:18:30 PM AppDomain 1668 (FDESK_CANCUN.dbo[runtime].1679) created.
3/14/2008 2:18:44 PM AppDomain 1668 (FDESK_CANCUN.dbo[runtime].1679) is marked for unload due to memory pressure.
3/14/2008 2:18:44 PM AppDomain 1668 (FDESK_CANCUN.dbo[runtime].1679) unloaded.
In this database only have one assemblie installed created using Vb.Net 2005, please help me how to diagnose where are the problem.
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Nov 9, 2007
We are dealing with occasional problems running out of virtual address space. I have implemented a job that records VAS every two minutes using the dm_os_virtual_address_dump function. When I notice a big drop in VAS I look at the SQL log and see event like:
Common language runtime (CLR) functionality initialized using CLR version v2.0.50727 from C:WINDOWSMicrosoft.NETFrameworkv2.0.50727
AppDomain 2 (32767.dbo[runtime].1) created.
In this case VAS dropped from 53MB down to 7MB. Then just 5 minute later I see these events
AppDomain 2 (32767.dbo[runtime].1) is marked for unload due to memory pressure
AppDomain 2 (32767.dbo[runtime].1) unloaded.
But we don't seem to recover any VAS and eventually have to reboot. We are using replication and I sometimes see this when replication restarts after we have an out of sync data issue. We do not have SQL CLR enabled.
Does anyone have any insight on what is going on? What triggers these AppDomains to be created and why does it eat up all the VAS? How could replication have anything to do with it?
We are running...
SQL Server 2005 Enterprise sp2 (with hotfix 3175)
Windows Server Enterprise 2003 SP1 32GB RAM
Max Server Memory in sp_configure = 29000MB
THANKS
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May 17, 2006
The Execute method in Microsoft.SqlServer.Dts.RunTime.Package class has memory leak after each invokation. This following code demonstrates it.
Output from the program:
Allocated memory after 1 iteration(s) = 476316
Allocated memory after 2 iteration(s) = 546448
Allocated memory after 3 iteration(s) = 555008
Allocated memory after 4 iteration(s) = 563632
Allocated memory after 5 iteration(s) = 572232
Allocated memory after 6 iteration(s) = 580856
Allocated memory after 7 iteration(s) = 589480
Allocated memory after 8 iteration(s) = 598240
Allocated memory after 9 iteration(s) = 606816
Allocated memory after 10 iteration(s) = 615424
Allocated memory after 11 iteration(s) = 624000
Allocated memory after 12 iteration(s) = 632576
Allocated memory after 13 iteration(s) = 641152
Allocated memory after 14 iteration(s) = 649728
Allocated memory after 15 iteration(s) = 658352
Allocated memory after 16 iteration(s) = 666948
Allocated memory after 17 iteration(s) = 675760
Allocated memory after 18 iteration(s) = 684380
Allocated memory after 19 iteration(s) = 693008
Allocated memory after 20 iteration(s) = 701532
//-----------------------------------------------------------------------------
// The Execute method in Microsoft.SqlServer.Dts.RunTime.Package has memory
// leak. This program demonstrates it. The package invoked by this program has
// only a single 'Script Task' that does nothing.
//
// To compile, add referece to Microsoft.SQLServer.ManagedDTS.dll.
//
// csc /r:"C:Program FilesMicrosoft SQL Server90SDKAssembliesMicrosoft.SQLServer.ManagedDTS.dll" ExecPackage.cs
//
//-----------------------------------------------------------------------------
using System;
using System.Diagnostics;
using Microsoft.SqlServer.Dts.Runtime;
namespace Misc
{
/// <summary>
/// Programmatically executes SSIS package, then displays memeory usage
/// after each execution. The memeory usage goes up after each
/// Package.Execute() call, which indicates memory leak!
/// </summary>
static class ExecPackage
{
static void DisplayUsage()
{
Console.WriteLine(@"Usage: ExecPackage <pkgName>");
Console.WriteLine(@" Package <pkgName> resides in Package Store on localhost under File System");
}
static void Main(string[] args)
{
// Parse command line arguments.
if (args.Length != 1)
{
DisplayUsage();
return;
}
string pkgName = @"File System" + args[0];
// Programmatically execute the package several times.
Application app = new Application();
for (int i = 1; i <= 20; i++)
{
Package pkg = app.LoadFromDtsServer(pkgName, "localhost", null);
pkg.Execute(); // comment out this line, then allocated memory does not increase
// Process.Start("dtexec.exe", "/dts "" + pkgName + """);
pkg.Dispose();
pkg = null;
// Do garbage collection, then display memory usage
GC.Collect();
Console.WriteLine("Allocated memory after {0} iteration(s) = {1}",
i, GC.GetTotalMemory(true));
}
}
}
}
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Hi there,
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The backup that I have won't sufice
If a database is marked as suspect, Will it recover?>
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Sorry about my Englisch, came from Austria.
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In the Enterprise Manager it is marked as "in load" and in the Errorlogfile stand following.
"Bypassing Recovery für Database "WINLINE" because it is marked "in load"?
What does it mean! Please help!!
Thanks for all answers
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Hi All,
Sql Server 7
I have database called ecatalog
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In the view Job history its showing the below contents
-------------------------------------------------------
Database 'ecatalog' is already open and can only have one user at a time. [SQLSTATE 42000] (Error
924) DBCC execution completed. If DBCC printed error messages, contact your system
administrator. [SQLSTATE 01000] (Message 2528). The step failed.
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------------------------------------------------------------------------------
The description for Event ID ( 208 ) in Source ( SQLServerAgent$ABCSQL ) cannot be found. The
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Waiting for Reply
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Public Function ActionToDb()
Dim noPo As Integer
Dim SQL As String, rst As ADODB.Recordset, dataSourceName As String
dataSourceName = DBPATH & "LVBURV Database.mdb"
dbConn.ConnectionString = "DBQ=" & dataSourceName & ";Driver={Microsoft Access Driver (*.mdb)}"
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On Error GoTo ErrorHandler
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With rst
SQL = "Select [mLVbuNo], [mStratInit], [mMerticLv],[mSubMetLv],[mTaskAction],[mImpact]," & _
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.CursorLocation = adUseClient
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.MoveLast
.AddNew
rst.Fields("mLVbuNo") = giRecNo
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rst.Fields("mSubMetLv") = frmActionDe.cboSubMet.Text
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rst.Fields("mImpact") = frmActionDe.txtImpact.Text
rst.Fields("mStatus") = frmActionDe.txtStatus.Text
rst.Fields("mOwner") = frmActionDe.cboOwn.Text
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rst.Fields("mCopmpleteDt") = frmActionDe.txtCompDt.Text
rst.Fields("mComment") = frmActionDe.txtComments.Text
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rst.Fields("mStatColor") = frmActionDe.txtStatColor.Text
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Else
rst.Fields("CompCheck") = False
End If
'End If
.Update
.Close
End With
dbConn.Close
ExitSub:
On Error Resume Next
dbConn.Close
Set rst = Nothing
Set dbConn = Nothing
Exit Sub
ErrorHandler:
WriteToErrorLogEnd Err.Description & " in ActionToDb"
Resume
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Apr 18, 2008
Hi,
I am having a Data flow task in For each loop which will gets 100 sourcetable names and 100 target table names...
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