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Out of memory Alert- False alert

karthikayini_mu
Inactive

Hello All,

Dynatrace client is showing a incident that one of the application server is out of memory but applications logs are all fine.

Any idea how to troubleshoot why client is giving a false alert.

Thanks & regards

Karthikayini M

6 REPLIES 6

Babar_Qayyum
Leader

Hello Karthikayini,

Did you see the same incident time in the logs?

Maybe the incident was about the page faults.

Regards,

Babar

Can you please explain on page faults,How it works?

Hello Karthikayini,

A page fault occurs when a program requests an address on a page that is not in the current set of memory resident pages.

The below blog is for the the Basics of Page Faults

https://blogs.technet.microsoft.com/askperf/2008/06/10/the-basics-of-page-faults/

Regards,

Babar

Hi @Babar Q.

Thanks for the reply.

I will work on it.

Regards

Karthikayini M

ravi_kumar11
Mentor

HI Karthikayini,

As I'm not aware of what technology used to build your app (.Net/Java), here is the below link which can help you to understand on the out of memory/memory leak causes for Java app.

https://stackify.com/memory-leaks-java/

Also, below links helps you to drill down on the memory leaks, if you app is java or .Net. Certain amount of physical memory is allocated out of the server memory to the app server, it is called Heap memory - if application is not able to find any free space from the heap for allocating the objects further it throws the out of memory error, so in this case we need to analyse why this issue is occurring and need to take actions like increasing the heap space(which is not recommended always), finding out the object(collections, static objects etc.,) which is causing the memory leaks through the below analysis.

https://community.dynatrace.com/community/pages/vi...

https://www.dynatrace.com/support/doc/appmon/appli...

Thanks

Ravi Kumar

Hi @Ravi Kumar D.

Thanks for the reply.

I will work on it.

Regards

Karthikayini M