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Cannot connect to profiler from UI

Moderators: Vladimir Kondratyev, Anton Katilin

Cannot connect to profiler from UI

Postby LockiStrike » Thu Jan 09, 2020 12:45 pm

Hello everyone,

I'm new to YourKit and I tried to add profiler to my java application (I running my application inside docker container) following this guide https://www.yourkit.com/docs/java/help/docker.jsp . As far as I see everything goes well, no errors in logs and I can open url on port chosen for profiler Image, also there is a found application in UI Image (CPU load changes from 0 to some value)
But when I connect to this profiler I see no recorded data, and a message
Local application "PropertiesLauncher" at port localhost:10011 has terminated or connection is lost

Please can you help me with this problem?

I added profiler by this java parameter
Code: Select all

Code added to Dockerfile:
Code: Select all
RUN wget https://www.yourkit.com/download/docker/YourKit-JavaProfiler-2019.8-docker.zip -P /tmp/ \
    && unzip /tmp/YourKit-JavaProfiler-2019.8-docker.zip -d /usr/local \
    && rm /tmp/YourKit-JavaProfiler-2019.8-docker.zip

Thank you in advance.
Posts: 1
Joined: Thu Jan 09, 2020 11:49 am

Re: Cannot connect to profiler from UI

Postby Vladimir Kondratyev » Thu Jan 09, 2020 2:02 pm

Please send log of profiler agent ( from ~/.yjp/log/ directory ) to [email protected]
Agent prints full path to log file in console when it starts.

Best regards,
Vladimir Kondratyev
YourKit GmbH
"Don't get lost in data, get information!"
Vladimir Kondratyev
Posts: 1527
Joined: Tue Aug 10, 2004 7:52 pm
Location: Düsseldorf, Germany

Re: Cannot connect to profiler from UI

Postby Anton Katilin » Thu Jan 09, 2020 4:27 pm

Update: the problem has been solved.

The problem was that the hostname inside the container matched the hostname of the machine hosting docker.

It was solved by overriding the hostname with the help of the "--hostname" parameter of the "docker run" command.
Anton Katilin
Posts: 6027
Joined: Wed Aug 11, 2004 8:37 am

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