• Forums
    • Public Forums
      • Community Connect
      • Dynatrace SaaS & Managed
        • Dynatrace SaaS & Managed Open Q&A
      • Application Monitoring & UEM
        • AppMon & UEM Free Trial
        • AppMon & UEM Open Q&A
        • AppMon & UEM Plugins
      • Data Center RUM
        • DC RUM Open Q&A
        • Enterprise Synthetic Monitoring
      • Dynatrace Synthetic Monitoring
        • Dynatrace Synthetic Open Q&A
        • Dynatrace Synthetic EAP Feedback
      • Keynote Synthetic Monitoring
        • Keynote Synthetic Open Q&A
        • Keynote Synthetic EAP Feedback
      • BSM Open Q&A
      • Server Monitoring Open Q&A
      • Dynatrace Open Q&A en Español
  • Home /
  • Public Forums /
  • Application Monitoring & UEM /
  • AppMon & UEM Open Q&A /
avatar image
Question by Anoh B. · May 02, 2013 at 04:43 PM ·

Instrumentation channel disconnected - server did not reply to ping request

Is it possible to prompt the agent to ping the dT server again in order to establish the instrumentation channel?

Regards,
Anoh Brou

Comment

People who like this

0 Show 0
10 |2000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

3 Replies

· Add your reply
  • Sort: 
  • Most voted
  • Newest
  • Oldest
avatar image

Answer by Andreas G. · May 02, 2013 at 05:51 PM

The dynaTrace Agent - once connected to a Collector - will retry connecting to the collector in case the connectdion is lost. That is default behavior. But - it is the Collector that it connects to and not the server

Comment

People who like this

0 Show 4 · Share
10 |2000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Anoh B. · May 02, 2013 at 05:56 PM 0
Share

Unfortunately the agent could not connect to the collector at midnight since the collector was being restarted. I checked the log file and the agent has not tried to connect since.

avatar image Andreas G. &. Anoh B. · May 02, 2013 at 06:04 PM 0
Share

If the agent doesnt get a connection during startup (within the first 60s) then it will not try to reconnect

avatar image Anoh B. Andreas G. ♦ · May 02, 2013 at 06:50 PM 0
Share

Is there any daemon that can be started without restarting the agent itself to remedy this situation?

avatar image Andreas G. &. Anoh B. · May 02, 2013 at 10:44 PM 0
Share

There is no daemon approach. The Agent needs a connection to the Collector during startup. There are some critical tasks that can only be done during startup of the JVM/CLR. If the agent doesnt get a connection to the collector it cant wait forever as this would block the loading of the application.

avatar image

Answer by Parveen S. · Oct 03, 2013 at 04:14 PM

Hi Grabner , how can we resolve this kind of issue, is there a way to alert users/admins about this issue?


 

Comment

People who like this

0 Show 1 · Share
10 |2000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Roman S. · Oct 03, 2013 at 04:32 PM 0
Share

The only way to resolve this is to make sure the collector is started + reachable from the agent and then restart the JVM or CLR. The agent should then connect and start delivering data.

Alerting is tricky, because the problem is that the agent has no connection to the rest of the dynaTrace infrastructure. It is written into the agent log file during startup thou...

Best, Roman

avatar image

Answer by Parveen S. · Oct 04, 2013 at 08:16 AM

In our case though the agents are up (connected), we are not able to see certain metrics like webrequests, purepaths...

Can you please let me know how to proceed further on this...

Comment

People who like this

0 Show 0 · Share
10 |2000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

Your answer

Hint: You can notify a user about this post by typing @username

Up to 5 attachments (including images) can be used with a maximum of 52.4 MB each and 262.1 MB total.

Welcome the
Dynatrace Community Forums

Check out the Forum User Guide and Forum Guidelines to learn how to get started.

Community Member of the Month
August 2017

Announcing Dynatrace's Community Member of the Month for August 2017, Rick B.! Click here to read more!

Follow this Question

Answers Answers and Comments

4 People are following this question.

avatar image avatar image avatar image avatar image

Forum Tags

nginx upgrade java diagnostics dotnet docker 6.5 ios appmonsaas database sensor performance warehouse chart hybris integration 6.3+ service metrics web performance monitoring production incidents systemprofile transactionflow test automation measures business transaction migration php android javascript dashlet server monitoring purelytics nodejs 6.2 system profile splunk uem appmon reporting framework license appmon 7 mobile monitoring regex collector installation adk licensing messagebroker web services apache xml support iis plugin dashboard rest reports 7.0 mainframe 6.1 client configuration continuous delivery sensors security rest api web dashboard agent alerting window 6.3 administration
  • Forums
  • Public Forums
    • Community Connect
    • Dynatrace SaaS & Managed
      • Dynatrace SaaS & Managed Open Q&A
    • Application Monitoring & UEM
      • AppMon & UEM Free Trial
      • AppMon & UEM Open Q&A
      • AppMon & UEM Plugins
    • Data Center RUM
      • DC RUM Open Q&A
      • Enterprise Synthetic Monitoring
    • Dynatrace Synthetic Monitoring
      • Dynatrace Synthetic Open Q&A
      • Dynatrace Synthetic EAP Feedback
    • Keynote Synthetic Monitoring
      • Keynote Synthetic Open Q&A
      • Keynote Synthetic EAP Feedback
    • BSM Open Q&A
    • Server Monitoring Open Q&A
    • Dynatrace Open Q&A en Español