Memory Leak :: Site Hanging
I have implemented a content management system through ASP and XML files. I am using sessions for my login information. It is a fairly complex site and uses various personal options for clients like, my page, my setting and my e-cards. The database for the clients is kept on MS SQL server. ANd I am using ADODB to connect at various stages.
The problem is that when more than 10 people try to access the site at the same time, irrespective of which part they access, the site hangs and goes down. When I monitor the server for the problem, the memory free goes tremendously high, even for small no of connections. The connections keep on increasing at a fast pace till the website crashes and there are no more connections that can be added. I am currently trying the strategy of timeouts (decreasing them at various portions of the code) and also checking whether there are any open connections. But I am not able to check how many clients are ACTUALLY connected. I read Response.isClientConnected is a strategy....
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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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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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Can this be the reason for huge memory expansion ? Doesn't this script free memory of the object it had created?
sub createCOMobject()
set obj1 = createObject("object1")
dim flag = 1
useObject flag,obj1
end sub
----------------------------------
sub useObject (flag, byRef obj1)
....
set obj1 = Nothing
end sub ....
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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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Anyone have any insights on how to debug a memory leak with a classic asp application?
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Im trying to track down a memory leak in one of our windows servers thats running W2k. Pretty basic install, although we have 3rd party software that simply blows.
Is there a way to check which ASP processes are running via command line, or another method on W2K/XP ?
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My webhosting company took down my website as it was causing a high memory use. Of course this happened just when I was on holiday ! Anyway I am trying to figure out what's going on. I didn't updated any script for more than 2 weeks before the abuse occured as I was on holiday. To make sure everything would be fine when away I had purge the database, defrag and compact it before leaving.
Any tools I can use to check out my site ? My host send me some log files created by Filemon but I can't really figure out what's wrong.
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We have a web application in AS. It also uses COM+ and SQL Server as back-end. Sometimes the size of the dllhost.exe grows unexpectedly. It is such that we restart our IIS/ PWS. Also there is only one instance of dllhost running when we restart the webserver but later on we notice more than one instance sometimes.
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We have an webservice application that has a memory leak when the application
is compiled release mode. However, when the application is compiled in debug
mode it does not exhibit a memory leak.
We are running .net 1.1 compiled with VS 2003.
The application does reference an unmanaged dll that provides security
functionality. This dll is instantiated once and referenced on every web
service call.
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As I ran in to errors like "Ran out of memory" and "Out of memory" I
supposed my website might have memoryleaks. To trace a potential memory leak
I isolated the IIS process and monitored the 'Virtual Bytes' and 'Private
Bytes' for a while.
I noticed the private bytes stays 'low' all the time. Sometimes a bit up,
sometimes a bit down. Virtual bytes also follows the same pattern for most
times. But, sometimes it increases to almost 2gb en stays there.
I've been reading for memory leaks an aggressive caching and stuff and was
wondering when there is a memory leak. In short: what does it mean thet the
amount of virtual bytes stays high? Is this probably due to caching or....?
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I have intermittent problems with asp pages timing out. When this happens, my DLLHOST.exe runs away with all of my CPU for about 2-3 minutes. As I understand it, this component executes asp requests in a COM server on IIS.
I am not using any custom COM objects in my app, but lots of ADO. Could this be a memory leak with my use of ADO, or is this caused by something else? If it is a memory issue, I can start tracking it down. I just need to know what the possible issues/causes could be to get started troubleshooting.
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We have two Win2003 webfarms each consisting of 5 servers.Which we call and cluster2. Cluster2 is the bussiest of these two and periodicaly (varies from 2 times per day to two times per week) one of the servers (this is pretty random) starts to build up Requests Executing.
During this 'queueing' it still serves about approx. 75% of the requests.requests that don't come back with an answer are added to the Requests Executing count.This goes on until 100 requests are queued then it starts throwing errors like:"The CreateObject of '(null)' caused exception C0000005"
To me it seems like one of the 4 worker processes is not responding anymore.Is there a way to see why this is happening?SQL server doesn't report any locks.
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I am to build a site onto an ASP server. Anyone here used Dreamweaver and is it just a simple matter of opening up a new ASP page in Dreamweaver and build the site like you would normally do with a HTML page and it will handle the ASP coding accordingly and you can just simply upload it onto an ASP server and it will work?
The site I am to build is basically just a standard html website, but my friend wants me to build it for an ASP server so he has asked me to make sure it is an asp site so I am presuming with the extension .asp
If I build it as a html site to begin with, will converting it to asp be hard. Could I just export my pages into asp or is there more to it?
Can a Html website be loaded and working on an asp server or host?
Is it possible to have a site mixed both html and asp, eg. the home page is html and when you click on shopping cart on the home page it goes to a hopping cart page thats .asp or do they all have to have the same extension.
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I have to pass form data from my site to another organizations site using POST method... how exactly do I do that? Im familiar with how to do it within a single site/domain, and cant use querystring... I dont know where to begin.
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Whenever I do a site that is mostly static but with some semi-dynamic
sections, I've struggled to find a good site search solution without
paying for a hosted search service.
I like the FSO-based search engines, but they fail to pick up on some of
the dynamic part.
I was just creating a Google sitemap and it made me wonder: has anyone
created or seen a script that uses the XML Google sitemap to power a
search engine for your own site?
Seems like if you were keeping it updated for Google, why not use it for
your own site?
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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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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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