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Same set of functions called repetitively in appdynamics call stack without recursion

Saurabh.Singh
Producer

Please see the attached screenshot of my call stack. We can see that in the root function, at the same level, two functions - load*Range and get*Collection  are called again and again despite the fact that the parent function has no type of recursion and hence, it should call each of these functions only once, not multiple times in the same order. Any idea on why the call stack shows this kind of trace?

 

Selection_006.png

5 REPLIES 5

Peter.Holditch
Moderator
Moderator

Is the code retrieving some kind of large result set from the database?

 

If so, that would probably explain what you're seeing.



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Yes, it indeed is accessing data from a large database. Could you please explain a bit clearly why is this happening?

Hi Peter,

 

Just in case you didn't receive my previous question, I just wanted to ask if you could explain your answer a bit more in detail? There is data retrieval from a big database, indeed.

Hi @Peter.Holditch Sorry for posting again (didn't know we can tag users like this). Could you please explain bit more clearly why there are repititions when the retrieval is from a large database?

 

Thanks,

I suspect in this case that the exit to the database (which is the instrumented method) is being called multiple times within the higher levels of the database driver as it iterates across the large result set you are retrieving.

 

In that case, you see one entry in the snapshot per iteration.



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