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  1. netconf
  2. NETCONF-1043

Possible memory leak when running get-config with large response file


    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: High High
    • None
    • 3.0.9, 5.0.6
    • netconf
    • Host Ubuntu 20.04.4 LTS

      Java openjdk 17.0.7

      Netconf testtool version 5.0.6

    • Normal

      Hello, guys.

      I'm using the netconf testtool to test a NETCONF device manager, and one of the tests is to check how the manager would handle a (relatively) large configuration data received through a get-config request.

      For that, I'm using a dummy config file 27MB large and passing it in command line with the --initial-config-xml-file parameter. The entire command I used for running the application is this:

      java -jar netconf-testtool-5.0.6-executable.jar --schemas-dir yang_modules --initial-config-xml-file get_config_response.xml --starting-port 17900 --ip


      The memory consumption when the application starts is around 120MB. Using a NETCONF client and sending a get-config request, the consumption goes to 750MB; when a second get-config is sent, the consumption goes to 1.1GB and stays at that level for ever if you don't interact with it anymore.

      Could you please have a look at this?
      I reproduced the same issue with version 3.0.9.

      Attached are the config data file I'm using and a log file. I tried to upload a heap dump I collected but its size exceeds the limit.


            Unassigned Unassigned
            israel.marinho Israel Marinho
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