• Forums
    • Public Forums
      • Community Connect
      • Dynatrace
        • Dynatrace Open Q&A
      • Application Monitoring & UEM
        • AppMon & UEM Open Q&A
      • Network Application Monitoring
        • NAM Open Q&A
  • Home
  • Public Forums
  • Application Monitoring & UEM
  • AppMon & UEM Open Q&A
avatar image
Question by Frank P. · Sep 20, 2013 at 05:26 PM ·

Exception Sensor Questions

Recently we have been noticing that we are seeing exceptions in our log files (and in the Logging and in the Errors Dashlets) but those exceptions aren't appearing in the Exceptions Dashlet of Dynatrace. A little further research showed the reason…

 

The exception we aren't seeing is a java.lang.NullPointerException. It looks like Dynatrace is setting up the Exceptions Sensor to exclude java., javax. and sun. by default. I realize that in order for me to capture our NullPointers that I need to remove the java. exclusion but I wanted to ask first… What kind of an impact will (may) this have on the performance of our applications? I'm assuming that Dynatrace excluded it for a reason. I'm hoping someone on this forum can help me understand why.

 

Thanks in advance.

Frank

Comment

People who like this

0 Show 0
10 |2000000 characters needed characters left characters exceeded
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 10 attachments (including images) can be used with a maximum of 50.0 MiB each and 250.0 MiB total.

2 Replies

  • Sort: 
  • Most voted
  • Newest
  • Oldest
avatar image

Answer by Frank P. · Oct 01, 2013 at 08:18 PM

As always... Good advice. And good information knowing that there's an overhead protection.

Thanks Andreas!

Comment

People who like this

0 Show 0 · Share
10 |2000000 characters needed characters left characters exceeded
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 10 attachments (including images) can be used with a maximum of 50.0 MiB each and 250.0 MiB total.

avatar image

Answer by Andreas G. · Sep 25, 2013 at 10:10 PM

Hi Frank

The "impact" is that there is more data captured by dynaTrace. Your PurePaths will get longer and that means that fewer PurePaths can fit in the in-memory live session of the dT Server. Now - that might not be a problem for you at all. Best is to change your configuration and see how many additional exceptions you capture and how that impacts the PurePath size. The exception sensor also has an "overhead protection" setting - this will prevent dynaTrace having too much overhead because we wont capture all stack trace details for all captured exceptions.

Long story short: give it a try. Look at the capture exceptions and exclude those that you dont need.

Comment

People who like this

0 Show 0 · Share
10 |2000000 characters needed characters left characters exceeded
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 10 attachments (including images) can be used with a maximum of 50.0 MiB each and 250.0 MiB total.

How to get started

First steps in the forum
Read Community User Guide
Best practices of using forum

NAM 2019 SP5 is available


Check the RHEL support added in the latest NAM service pack.

Learn more

LIVE WEBINAR

"Performance Clinic - Monitoring as a Self Service with Dynatrace"


JANUARY 15, 3:00 PM GMT / 10:00 AM ET

Register here

Follow this Question

Answers Answers and Comments

1 Person is following this question.

avatar image

Forum Tags

dotnet mobile monitoring load iis 6.5 kubernetes mainframe rest api dashboard framework 7.0 appmon 7 health monitoring adk log monitoring services auto-detection uem webserver test automation license web performance monitoring ios nam probe collector migration mq web services knowledge sharing reports window java hybris javascript appmon sensors good to know extensions search 6.3+ server documentation easytravel web dashboard kibana system profile purelytics docker splunk 6.1 process groups account 7.2 rest dynatrace saas spa guardian appmon administration production user actions postgresql upgrade oneagent measures security Dynatrace Managed transactionflow technologies diagnostics user session monitoring unique users continuous delivery sharing configuration alerting NGINX splitting business transaction client 6.3 installation database scheduler apache mobileapp RUM php dashlet azure purepath agent 7.1 appmonsaas messagebroker nodejs 6.2 android sensor performance warehouse
  • Forums
  • Public Forums
    • Community Connect
    • Dynatrace
      • Dynatrace Open Q&A
    • Application Monitoring & UEM
      • AppMon & UEM Open Q&A
    • Network Application Monitoring
      • NAM Open Q&A