Unable to find the Automatic Leak Detection dashboard after enabling the On Demand Capture Session

[Sarath_Kumar_Sa]

We have enabled On Demand Capture Session for capturing the memory leaks on of our node. After the session ends, we are unable to see the detection dashboard 

[iamryan]

Hi @Sarath Kumar.Sarepaka,

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[tezza_chen]

From the screen shot, you have started the ALD session and the Summary showed you have successfully started  & stop CollectionCapture... unfortunately, no Java Collections were eligible for evaluation. If you look at the middle section of the screen, it gives the explanation/details.

To qualify for evaluation, a Collection must have a certain size and elements.  2 App Server Agent settings/parameters are mentioned:

• minimum-size-for-evaluation-in-mb - The default value is 5MB(I think). Depending on your application, you may want to increase of decrease this value.
• minimum-number-of-elements-in-collection-to-deep-size - The default is 1000 elements, maybe  large for an application(?). If your application is small and we’re not sure if any collection has about 1000 elements, we can try lowering this value.

Next, is Start On Demand Capture Session:

• If Session Duration is too small, we may not have sufficient time window to capture those Collections (objects/classes). If the default 10 mins shows nothing, then try 15.
• If Collection Age is too small, this means the Collection is too “young” and hence the size may not be enough as candidate for evaluation. Go with default 2 mins.

If all the criteria are good, you should see something below:

thanks.

[iamryan]

Hi @Sarath Kumar.Sarepaka,

If you have not yet seen this AppDynamics Documentation, please check it out and see if it helps.