Scaling And Server Memory Issues
I am hosting hundreds of websites on a webserver using a combination of sql and asp.
SQL is on a different server. The web server is running win 2003 iis 6 with a single processor and 1 GB Ram. All websites are in 1 app pool.
I find that i get out of memory errors or no new sessions are created when the virtual bytes for an App pool starts to breach over 1500mb. So i recycle the App pool at a limit of 1500mb.
This leads to the app pool recycling 1-2 times a day. Typically the Private Bytes counter is saying 293mb and virtual bytes is 1438mb. I don't know whether this is a leak somewhere in ASP or normal with IIS but the virtual bytes only seems to increase over time and not stablise or go down as i would expect when users visit and leave a website.
I have a script that i use to let uses download files from the server. It uses the response.binarywrite method. If i download a large files (i.e. over 100mb) then i see a big jump in the virtual bytes that IIS allocates in the w3wp.exe process. This does not appear to go down after the file has been downloaded although Private Bytes goes up and then down initially. I was thinking that this may be a cause of the problem?!
....or maybe it is typical for these types of large scale ASP applications? Would increasing the main memory RAM to 2GB help in this situation. The main Physical Memory still reports about 300mb free when i get the memory problems?
Would it help to split the websites into a couple of different App Pools, then increase the page file size to something larger and hence each App pool gets to use a separate 2GB memory space? Would i benefit from moving to Windows 64bit edition and installing more Ram and having a large Page file to cope with the large Virtual Bytes?
Can anyone offer some guidance who have had similar issues with hosting their sites?
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I am getting the following error from my ASP application:
Microsoft VBScript runtime error '800a0007'
Out of memory: 'Server.CreateObject'
It always (as far as i have observed) occurs when i try to create a new
ADODB.connection object in my cCon helper function (opening a connection and
returning it):
Function cCon()
Dim cnRet
set cnRet = server.createobject("ADODB.Connection") 'This is where the
error is thrown
cnRet.connectionstring = GLB_CONSTR_DB
cnRet.open
Set cCon = cnRet
End Function
The page that errors will typically call this function 6- 10times from
different functions which handle their connections in this way: Code:
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We are running asp (not asp.net) and vb com dll web sites on a machine which also has sql server 2000 sp3a running and uses Windows Server 2003. We recently migrated from Windows 2000 (same database) where we had no problems. However on the new machine, despite much being much more powerful and having the same usage, the box is periodically
grinding to a halt. The cause seems to be sql server using excessive amounts of memory, it steadily builds up to after a reboot to a high level. This seems to point in the direction of a memory leak, is anyone aware of any such problems with asp/sql server on windows 2003 and how to diagnose/fix them. I am aware of some unclosed connections in the asp code and objects that have not be set to nothing but this did not seem to cause a problem in the old machine and it is not practical to fix them all in the short term. I thought it might be unclosed connections although when I looked at SQL Server:General
Statistics and User Connections I did not seem to see a large or increasing number of connections.
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I get this error in trying to do recursive loops. My function to get the subordinates is: Code:
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I am creating an instance of MFC COM dll through ASP page.
It is giving me the following error.
Error Type:
Server object, ASP 0177 (0x8007000E)
Ran out of memory
Hardware spec:
p4, 256MB ram
OS: 2000 professional
IIS 5
Irrespective of the user under which virtual directory is running it throws this error. Probably its got to do something with permissions(NTFS).....
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How can a measure server session memory usage?
I have a 20-30 session variables and I would like to know how much they memory they consume then multplied with my projected user load.
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I am creating an instance of MFC COM dll through ASP page.
It is giving me the following error.
Error Type:
Server object, ASP 0177 (0x8007000E)
Ran out of memory ....
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Can anybody shed any light on this issue ??? Or even ways of temporaily
getting around it ???
FISH is an ASP application which uses a WSC object called "finapps.fishapp"
to handle the requests to the database. The WSC is created in the GLOBAL.ASA
as a Session object using the following line:
<OBJECT RUNAT=Server SCOPE=Session ID=fish
ClassID="{32f74dc1-40f8-4db3-98a7-000200040013}"> </OBJECT>
The finapps.fishapp object creates an "ADODB.Connection" object that is held
open while the session is running, and the Session_OnEnd event should call a
method of that object that closes the connections
The website falls over only when there has been a period of inactivity
greater than the length of the session timeout, and also after there has
been a significant amount of traffic prior to this!
The problem we have only occurs for one of our clients, but occurs seemingly
randomly on all 4 of their servers. The returned results of the error are as
follows:
-----------------------------------------------
Active Server Pages error '8002802b'
Create object failed
An error occurred while creating object 'fish'.
Microsoft VBScript runtime error '800a0007'
Out of memory: 'fish'
//global.asa, line 36
------------------------------------------------
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We're getting "ERROR (0x8007000E) Not enough storage is available to
complete this operation" errors on a fairly large, busy ASP/SQL Server web
site. The error is being thrown on a line calling oRs.GetRows() on one of
our busiest pages. The array returned from the GetRows() call will be
'cleaned up' when the page goes out of scope, but I wonder if we should be
calling Erase specifically after the last usage to explicitly free allocated
memory. Is there any actual benefit doing this cleanup explicitly? I've
always throught that ASP's memory deallocation was a bit spotty - can anyone
comment.
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We are receiving an error in our ASP website that used to run fine on our old servers but seems to be struggling on our new ones, I'm wondering if you've seen this error before?
Microsoft Cursor Engine error '8007000e'
Out of memory.
/oob/activities/default.asp, line 470
The last line that shows where the error happening is different on every page but it appears at the first database connection on each page.
The only way to get rid of the error and get the site working again is to recycle the application pool for the site (or restart IIS).
We have two servers, one running IIS and the other running MSSQL 2005. Both are the following specs: Code:
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I think I already know the answer ("NO"), but I figured I'd ask anyway:
Is there a way to populate a SQL-like object entirely in memory, without having to save it in a SQL-like environment like MySQL, MS-SQL, or Access?
I'd like to take the contents of some CSV's and dump them into a virtual SQL table, and then call from that table using a SQL statement ("SELECT * FROM VirtualTable WHERE Foo='Bar'"). I know that in .NET I could use a data-grid to do basically that, but I was wondering if there was a classic ASP solution.
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I am getting an ASP error.. that tells the server it is OUT OF MEMORY.then the server displays a message about the DLLHOST.exe and it waits for an "OK" from me.after hitting OK... it goes back to working fine.BUT, while the notification is up on the screen.the website is NOT AVAILABLE.that is the message that visitors get when they try to get to the website.so, is there a way I can tell the system to SKIP the notification .andmjust restart the service.
What memory is the issue here.I am assuming this memory error is coming from an INFINITE LOOP or something.from one of my ASP pages. so, I would imagine the best move would be to get RID of the "On Error Resume Next" code at the top of my pages.. to try and isolate the problem?
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I'm having a problem that I can only attribute to something that I don't
know about ADO. I am using an ADODB.Connection with .CursorLocation = 3
since I am using MSSQL with text fields.
I am running a large set of 4 LEFT JOINS (5 tables in all). Currently
my recordset is returning 168 rows and 23 colums. After looping through
the ADO connection 27 times (creating a pdf report for users to print)
the data goes nutz. I have tried using different inputs and no matter
what on the 27th time is stops.
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Does any body know any tool that profiles Internet Explorer for memory
leaks.
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I am trying to write a search script in my spare time at work. We have a knowledge base consisting of 200+ .mht files. My script was working ok when I was testing it on just a few files but I am getting out of memory errors trying to search through the whole KB. Here is the search code:
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am just wondering is there a easier way to release all the memory after the program is done?or do I need to set all my variable = nothing one by one at the end of my code?
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We've got this problem on our site where slowly eats virtual memory until IIS stops serving pages...
Restarting the IIS process fixes the problem, until the next time it reaches that point. I've made sure all our ADO objects are being closed and set = Nothing. I don't know what else could eat up all that memory...
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I am trying to create a search script but I am running into an out of memory error. Here is the search subroutine which loops multiple times:
Code: .....
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Had developed a webpage to refresh automatically from one ASP page to another, with the feature of displaying local data that is actively poll & inserted from other remote database servers. The local server is using IIS & Microsoft SQL 2000. I have the problem of "Out of Memory at line 30" after the ASP page has ran for 13 hours, at client machines that is connecting to the server hosting the ASP. However by closing the Internet Explorer and re-open the ASP page, the problem is temporary resolved until another 13 hours later. I think i've had the server objects set to nothing, and had put all queries into sub. I couldn't think of other solution for the problem...
Is duplication of sub affecting the performance? Any setting to be done on server, e.g. IIS / SQL? I've attached the ASP file.
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Are there any tools to test asp code on memory leaks. Or the took that will monitor IIS server against specific asp-page in order to find mem leaks on in.
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I am trying to beef-up the security when passing data between pages. I am currently using the following code to navigate between some of my pages.
<a href="javascript: GetFormValue(FRMTRANSFERS.TXTHOSPITALID,'ADDPATIEN T');">
<SCRIPT LANGUAGE="JavaScript">
function GetFormValue(FField,StrPage)
{
var myField = FField
var myNumber = myField.value
self.location = StrPage + ".asp?ID=" + myNumber;
}
</SCRIPT>
I would rather use cookies to do this but i need to know if you can create a cookie that doesn't get written to the harddrive. I can't use session variables as i can't write then in Javascript - at least i think not -
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I have managed up to the point that a byte[] imageContent contains a picture which i can show in a aspx page by:
// return byte array to caller with image type
Response.ContentType = "image/jpeg";
Response.BinaryWrite(imageContent);
but what i need is to post it back to the page that the user entered various details without losing them.
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I have an asp page that displays the results in Excel in the browser.
It has about 40 columns and sometimes records can grow upto 1100.
For small number of records I do not get any error messages or displays
the result in Excel format properly. But for the higher number of
records even if the program runs for all day it hangs up and shows
nothing.
In the asp program I have many if and then statement as well as big
loop.
My question is how can I solve this problem? Do I have to look into the
web server memory and other configuration settings? Or is there a
maximum size limit in Excel.
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I have a page which sends a query to an DB2 using an ODBC. The
results are then written to a text file. I am unable to write directly to
the users drive because of permissions.
The problem I have is that when the
query set becomes too big, I get error '8007000e' Not enough storage is
available to complete this operation. The query is returning 100, 000
records or more. So my question is how do I handle this? Somebody had
suggested to me to chunk the data. Code:
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I get the following error message from an ASP page that we have:
METHOD: POST
ERROR DESCRIPTION: 007~ASP 0100~Out of memory~Unable to allocate required
memory.
ERROR NUMBER: -2147024882
ERROR SOURCE: Response object
Does anyone out there have any ideas? Please let me know if you need any
more information ... I am not sure why this message has suddenly started to
pop up.
I checked the system logs and cannot see any particular memory loss related
message so I don't know.
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I have found this message in Event Viewer on my Windows 2000 server.
Error: File/Test/upload/upload.asp Line 85 Out of memory. Unable to allocate required memory..
It seems to be the cause of a problem I have had uploading and downloading files through an ASP page using Binary Stream Objects. Anyone got any ideas about how to solve this?
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I have a problem with a bit of asp used in a date selection box. It is supposed to get the right days and dates and then list them in the select box for up to a week ahead. The error i get is Out Of Memory specifically the line reading:
ReDim daysOfWeek(strDaysTaken)
Here is the code:
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I'm creating some menus based on a recursive menu script I got from here
I have modified it to use a SQL database as well as a jquery nested menu which works similarly to suckerfish dropdowns.
What I want the script to do is to recursively go through the list and when there is a child display it. My version works just fine the first go around but then fails once it's called a second time.
I can't show you the link because it's on our internal server, but here is my code:
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I have a huge web site mixed ASP and ASP.NET and MSSQL. I am using hosting provider who set my site to use no more than certain amount of memory. Some times the site gives error server down because the server starts to freee up the memory when it reaches the maximum. Please give me some advices how to track the leeking memory. I suppose it's because of some unclosed db connections.
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I am having this problem (Listed in the Subject line)with my IIS 5.0 Server.
Installed on an IBM @series with 512MB.
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We are doing a stability test on our application to prepare for Microsoft
SQL Server 2000 certification, and we found a memory leak, but we cannot find
its source and fix it.
We use an ASP page written in JScript that connects to Analysis Services
2000 using ADOMD and retrieves data from it (this is a very simplified
version of our real application that we created just to test the memory
leak), see the code below.
We are using Microsoft Application Center Test to run this page, and
Performance Monitor to monitor the Memory/Committed Bytes and Processor usage
of our web server. The Memory/Committed counter slowly increases over time,
which indicates a memory leak, right? The Private Bytes for the InetInfo
process remain stable.
Our setup is a web server running Windows 2000 and Analysis Services on a
different server running Windows 2000. The application Center Test is running
from another computer. We also tried using a web server running Windows XP
Pro instead of Win2000, with similar results.
Using PerfMon, we monitor the number of Analysis Services connections, and
this number remains stable, so the memory leak doesn't seem to be due to an
ever increasing number of AS open connections.....
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Is there a way of performing an sql query and then call it again from memory rather than having to execute the query again?
As We have a few pages which gets data from a long query but then depending on user interaction could get recalled several times but with the data still the same.
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I am running a web application with application protection level set to high, so it runs in a separate dllhost.exe process, the process takes around 14,000 K of memory I wanna know if this is fine or I have a memory leak problem.
I set all record sets to nothing without closing them and also I close the database connection.
Are there any tools that can measure the ASP page performance and tell me where do I have performance bottlenecks?
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