RFA7.2 failed to connect RMDS in different linux environment

shishuoxinyux
shishuoxinyux Explorer
in RFA

Currently, we are migrating our RFA7.2
based program from windows to Linux,but in development
environment,everything is ok,but when I deploy the project to the ST
environment,it failed to connect RMDS,I compare and the only difference
is the /etc/hosts file,but I have no permissions to amend the hosts file
in ST,the connection issue as below:

Received CONNECTION_EVENT: myNamespace::SLLConnection
{ state: DOWN, code: NONE, text: "Not connected: com.reuters.mainloop.DispatchException: Could not determine position"}

Any suggestion for us to debug?

Thank you very much for any reply.

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Best Answer

  • wasin.w
    wasin.w admin
    Answer ✓

    @shishuoxinyux

    I can replicate the problem in my environment. My /etc/hosts file is

    127.0.0.1 apis11 localhost localhost.localdomain localhost4 localhost4.localdomain4

    ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

    I can replicate the problem by commenting the first line (the 127.0.0.1 line), then use the MDSubDemo example to subscribe data to ADS server (non DACS). Can you share us your /etc/hosts file? The hosts file should contain 127.0.0.1 line by default.

Answers

  • moragodkrit.chumsri_1
    moragodkrit.chumsri_1 LSEG

    @shishuoxinyux

    Do you have the error message when it failed?

    We have user found connection issue when using RFAJ connect RMDS in linux environment. not sure is this the same one?
    RFA7.2 failed to connect RDMS in Linux 6.4

  • shishuoxinyux
    shishuoxinyux Explorer
    https://community.developers.refinitiv.com/discussion/comment/6802#Comment_6802

    @moragodkrit
    it's the same problem,and I follow the reply from that
    question,it's ok in our development environment ,but when I change the
    environment ,the same problem has happened again,but I'm not sure if is
    the problem of the hosts file.

  • Lars-at-Addicticks
    Lars-at-Addicticks Expert

    Still using SSL interface, eh?

    I don't know how your application is doing its configuration but in a standard RFAJ SSL application (MarketData interface) you would - as I remember - be able to force the position into something you feel is correct, rather than letting the API decide the position for you .. which it obviously fails at.

    So, according to Config Guide (legacy), you would need to define username explicitly as in

    username=john+256+10.1.5.231/myhost

    In this example "10.1.5.231/myhost" becomes the position.

    Note that an application force setting the position part of the DACS login should be an exception and I wouldn't recommend it for production unless you know exactly what you are doing.

    Best of luck.

    Lars

    Addicticks

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