• 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 Oscar G. · Sep 18, 2015 at 04:36 PM ·

local agent unable to connect on localhost

2015-09-18 12:25:17 [0000058c] info [native] Server/Collector ............ localhost:9998 2015-09-18 12:25:17 [0000058c] info [native] Trying to connect to Server for up to 0 seconds 2015-09-18 12:25:18 [0000058c] warning [native] Exception while connecting to collector, info:<connect()/apr_socket_connect(), 730061, Connection refused> 2015-09-18 12:25:18 [0000058c] warning [native] Unable to connect to server - running uninstrumented

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.

4 Replies

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

Answer by Graeme W. · Sep 18, 2015 at 06:32 PM

Check to see if the Collector is up and running in Settings -> Server -> Collectors, then restart the Collector.

-- Graeme

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 Oscar G. · Sep 18, 2015 at 06:27 PM

I also see the process "dtcollector.exe *32"

Comment

People who like this

0 Show 1 · 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 Bill Z. · Sep 18, 2015 at 06:30 PM 0
Share

Can you telnet from this machine to localhost:9998 ?

Is localhost resolving to 127.0.0.1? (try pinging it)

avatar image

Answer by Oscar G. · Sep 18, 2015 at 06:25 PM

Server 2008 R2

The dynatrace collector service is running

TCP 0.0.0.0:9998 0.0.0.0:0 LISTENING

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 Graeme W. · Sep 18, 2015 at 06:17 PM

Connection refused means that you can connect to the system (not surprising since it's localhost!) but there's no process listening on the specified port.

My guess is that the Collector is not running. Another possibility is that you changed the Collector agent listening port -- you can check that in Settings -> Server -> Collectors. In fact, that would be a good place to start, to see what is running on what port.

-- Graeme

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

8 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image 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