Limit of 45 components per Monitor

Hi,

we had a issue this morning to add a component to an existing Application monitor. Now we figured out that adding components to other application monitors works fine. Only the application monitor which has already 45 components will not add a new.

can someone confirm that there is a limit and if that is hardcoded or can be adjusted somewhere?

thanks

Eike

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Accepted answers

tomb

Hi exact,

this is known issue introduced by one of Windows updates, you can find solution in this KB. I just recommend to use higher value than 2000 in the MaxHttpCollectionKeys value for APM, 10000 will be sufficient.

All comments

aLTeReGo

There is no hard coded limit to the number of component monitors you can add to an application template. I've personally created application templates that contain as many as 150 component monitors without issue. What is the error you're receiving when you try to add the 46 component? Is it at all possible you've exceeded your license count?

FormerMember

Hi,

doesn't matter if we wanna add or remove a component

we receive always an

Unexpected Website Error with following details.

Message: The URL-encoded form data is not valid.
ErrorSite: System.Web.HttpRequest.FillInFormCollection
ErrorType: System.Web.HttpException
Stack:
at System.Web.HttpRequest.FillInFormCollection()
at System.Web.HttpRequest.get_Form()
at System.Web.HttpRequest.get_HasForm()
at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull)
at System.Web.UI.Page.DeterminePostBackMode()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
-- Inner Exception
Message: Operation is not valid due to the current state of the object.
Type: System.InvalidOperationException
Stack:
at System.Web.HttpValueCollection.ThrowIfMaxHttpCollectionKeysExceeded()
at System.Web.HttpValueCollection.FillFromEncodedBytes(Byte[] bytes, Encoding encoding)
at System.Web.HttpRequest.FillInFormCollection()

I tried already to export and import the monitor wqith the same result. For other monitors I cann add or remove components without any problems or errors. That why we thought that there is a limitation.

tomb

Hi exact,

FormerMember

Thanks, this solved the problem!