Asp.net Worker Process Runs Out Of Memory When Using A Large Dataset
Feb 27, 2006
Hi,
I'm running an application on a server which grabs data from a database table on another server using SqlConnection, SqlDataAdapter and DataSet.
The application then updates every row in that DataSet's DataTable and the updates are saved back using DataAdapter. The code is pretty much straightforward code that you would find on MSDN documentation for using DataSets. The table contains a little over a million rows.
When I run the application, I get an error saying the Server Application is not available. Upon looking into the application event log, I get this message.
aspnet_wp.exe was recycled because memory consumption exceeded the
306 MB (60 percent of available RAM)
How do I get round this? I thought DataSets were supposed to handle large datatables comfortably without having memory issues.
Everyday between 18:00 and 20:00 nearly 1000 PDA Subsriber anonymously synchronise via Merge Replication and at least two time he have the error :
IIS Worker Process Faulting application w3wp.exe, version 6.0.3790.1830, faulting module sscerp20.dll, version 2.0.7331.0, fault address 0x000110f4.
And subscriber which synchronising meanwhile becomes suspect.
Can someone offer a suggestion as to the cause of and correction for this error?
Thanks,
Hakan G
Here is some details about our system:
Client Side OS: Windows Mobile 2003 4.21.1088 DB: SQL CE 2.0 Microsoft SQL Server CE (ssce20.dll) 2.00.4415.0 Microsoft SQL Server CE Client Agent (ssceca20.dll) 2.00.4415.0 Development Tools: VB.NET 2003 Service Pack: .NET Compact Framework 1.0 SP3
Server Side OS: Microsoft 2003 SP1 Internet Information Services (INETINFO.EXE) 6.0.3790.1830 (srv03_sp1_rtm.050324-1447) IIS Worker Process (w3wp.exe) 6.0.3790.1830 (srv03_sp1_rtm.050324-1447) HW:IBM XSERIES_346 Intel(R) Xeon(TM) CPU 3.60GHZ (2CPU) 5,00 GB RAM DB: SQL CE 2.0 DB:SQL Server Standart Edition 8.00.2039(SP4)
SQL CE Server 2.0 Microsoft SQL Server CE Server Agent (sscesa20.dll) 2.00.7331.0 Microsoft SQL Server CE Replication Provider (sscerp20.dll) 2.00.7331.0
I have a small number of rows in a dataset, Table 1. There is a CLOB on a large dataset, Table 2. They join on a PK. I would like to retrieve this CLOB and add it to the data flow for Table1. In short I want to emulate the following:
Table 1: Small table without CLOB, 10 rows. Table 2: Large table with CLOB, 10,000,000 rows
select CLOB from table2 where pk = (select pk from table1)
I want this to return the CLOBs for the small number of rows in Table 1. The PK is indexed obviously so it should be a fast look up.
Table 1 and Table 2 live on different Oracle databases. How do I perform this operation efficiently in SSIS? It seems the Lookup and Merge Join wont do this.
I have a Windows sever 2012 with sql server 2012 enterprise. Ram size is 22GB. Sometimes SQL sever takes 95% memory.My question, How to reduce memory size without killing any process because it's production server.So there are many background process is running. And,Is there any guides to learn why Memory is raise d so high and how to reduce it.
I am running the following MDX query through a DataReader and a Ado.Net Connection.
SELECT {[Measures].[Deuda Total Nacional], [Measures].[Deuda Total Nacional Maximo], [Measures].[Cupo Nacional], [Measures].[Porcentaje Utilizacion Maximo], [Measures].[Pago Minimo Estado Cuenta], [Measures].[Deuda Ultima Facturacion], [Measures].[Dias Mora], [Measures].[Dias Mora Maximo], } ON COLUMNS ,[Cuenta].[Cuenta].[Cuenta]*[Cuenta].[Rut].[Rut]*[Cuenta].[Dv].[Dv] ON ROWS
FROM [Bd Rtd] WHERE [Tiempo].[Mes].&[2007-09-01T00:00:00]
The thing is, when I have about 10 thousand rows It runs in about 50 seconds which is good, but when I run this query and I have processed the cube with 100 thousand rows it runs out of memory and crashes.
I'm working in a shared development server with 1GB of memory for my project.
Is there any way to make it run anyway?? I mean even if it has to swap.
thanks
By the way when this thing goes into production it will have 1.5 million rows
I have a for each loop which steps through an ado recordset (approx. 5,000 rows), this passes two variables to an SQL statement which populates a second recordset (normally 8 to 10 rows). I use the second recordset in a dataflow task which was a simple Script which returns approximately 30 rows for inclusion in my destination table. The package runs for a while OK, although the loop appears to execute slowly, then I get the below message constantly repeated in the debug window.
[DTS.Pipeline] Information: The buffer manager detected that the system was low on virtual memory, but was unable to swap out any buffers. 174 buffers were considered and 174 were locked. Either not enough memory is available to the pipeline because not enough is installed, other processes are using it, or too many buffers are locked. I have 2gb of virtual memory on my machine, and the recordsets are relatively small. Have I missed a seting some where?
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The dataset in question doesn't even join any tables, it's a direct select distinct field"1" from table"a".
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The SSIS package throws this error when I run the package..at the validation task.
Error: 0xC002F304 at Validate bio_fixed, XML Task: An error occurred with the following error message: "Exception of type 'System.OutOfMemoryException' was thrown.".
How do I increase the amount of RAM that VIsual Studio can use...I have plenty of RAM on my workstation >3GB, but VS chokes maybe around 100MB files?
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Hope my question is clear for your help.
Thank you very much in advance for your advices and help and I am looking forward to hearing from you shortly.
The sample data above shows 1 customer with multiple episodes (different attend dates – not important here), during the course of these attendances they moved home and moved GP practice.
Is there a simple way in Access to show a summary of this eh PTO1395164 = 2 postcodes, 2 GP’s
THe ultimate aim would be to identify where a customer has changed postcode or GP within a selected timeframe and disregard the rest.
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2008-06-09 07:46:18.17 spid3s A significant part of sql server process memory has been paged out. This may result in a performance degradation. Duration: 0 seconds. Working set (KB): 1079156, committed (KB): 17156388, memory utilization: 6%.
What does it indicates and what appropriate action has to be taken to fix it.
The database runs on
SQL 2005 Dev 64-bit SP2 9.00.3042.00 Win 2003 standard x64 SP2 16GB RAM
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When locate the process 1004, it shows 15 threads that Elapsed time for all of them is 1d, 3hrs. The Thread state is Waiting and the Thread Wait Reason is "Waiting for an Execution Delay to be resolved".
I think that 1d, 3hrs is from the time I rebooted my server.
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CREATE PROCEDURE usp_Purge_WCFLogger AS SET NOCOUNT ON EXEC sp_rename 'dbo.logs', 'logs_work' GO SELECT * INTO dbo.Logs_Backup FROM dbo.Logs_Work WHERE TIMESTAMP < DATEADD(month, -6, GETDATE())
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I found a setting where you can set max_server_memory. Any problems if I set this to a value?
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2008-05-20 01:25:02.12 spid2s A significant part of sql server process memory has been paged out. This may result in a performance degradation. Duration: 0 seconds. Working set (KB): 33920, committed (KB): 15142988, memory utilization: 0%.
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SQL 2005 Dev edition SP2 64bit Win 2003 R2 SP2 Standard X64 editioin RAM size is 16GB
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An example of how I would connect and do a SQL transaction:
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A significant part of sql server process memory has been paged out. This may result in a performance degradation. Duration: 328 seconds. Working set (KB): 76896, committed (KB): 167628, memory utilization: 45%.
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Error: A significant part of sql server process memory has been paged out. This may result in a performance degradation. Duration: 647 seconds. Working set (KB): 11907776, committed (KB): 28731732, memory utilization: 41%%.
