IMAP Files on the Collector

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Question by Anuj D. · Jun 17, 2015 at 10:56 PM ·

IMAP Files on the Collector

Hi,

I am seeing these .imap files on the Dynatrrace Collector box which are taking up a lot of space. i wanted to check what these files are used for and is it safe to remove them if they are really old?

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Answer 1 · 2015-06-19T20:09:57Z

Answer by Anuj D. · Jun 19, 2015 at 08:09 PM

We use the 4.2 version. We are working to get it updated. I see a blobs.dtsf file which is taking around 14 GB space. What is the purpose of that file?

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Answer 2 · 2015-06-17T23:23:23Z

Answer by Anuj D. · Jun 17, 2015 at 11:23 PM

But they are as old as October 2012. So they get accessed only when needed or how does it work?

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Andreas G. &. · Jun 18, 2015 at 12:56 AM 0

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They are only updated when there is new/updated inheritance information from your loaded java / .NET Code. If your application doesnt change significantely we wont update these IMAP Files as they are still accurate.

Which version of dynatrace do you run? in recent versions we implemented cleanup tasks for imaps that are no longer used or outdated

Answer 3 · 2015-06-17T23:01:27Z

Answer by Andreas G. · Jun 17, 2015 at 11:01 PM

Hi

Yes - these represent our "Inheritance Map" - hence - IMAP. Our collector needs this for correct instrumentation. This inheritance map is built-up by analyzing byte-code of your applications. we keep record of the full inheritance hierarchy of your applications.

Please keep them there - otherwise you could break correct code instrumentation

Andi

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IMAP Files on the Collector

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