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Comment: Published by Scroll Versions from space DEV and version r0822


Relational connections can be configured to leverage your enterprise Single Sign-On (SSO) infrastructure for authentication. Additional configuration is required. For more information, see Enable SSO for Relational Connections.


Reading or writing over TLS/SSL fails

Reading or writing over TLS/SSL may fail with an error message in the data service data service log similar to the following:

Code Block
The server selected protocol version TLS11 is not accepted by client preferences [TLS12, SSL20Hello]

In this case:

  • External libraries referenced by the data service may use TLS/SSL protocols of their own choosing. 
  • These libraries are included during initialization of the data service.
  • The listed protocol (TLSv1.1) is a version of the TLS protocol that is no longer supported. 


You can configure the platform to override the default protocols supported by Java 8 and to instead use the set of protocols listed in platform configuration. 

  1. D s config

  2. When set


  1. to true, the following parameter instructs the data service to use the protocols listed in Admin Settings page instead. Set this parameter


  1. to true:

    Code Block
    "data-service.httpsProtocols.reset": false,




    (default) Supported HTTPS protocols are defined by Java 8.


    Supported HTTPS protocols are defined by the

    D s platform

  2. Locate the following parameter: 

    Code Block
    "data-service.httpsProtocols.defaultProtocols": "SSLv3,TLSv1,TLSv1.1,TLSv1.2"

    Tip: You can enter any TLS/SSL protocol supported by Java 8 in the above. Other protocols are likely to cause read/write failures.

  3. In this case, you can add the missing protocol to the list, as in the following example:

    Code Block
    "data-service.httpsProtocols.defaultProtocols": "SSLv3,TLSv1,TLSv1.1,TLSv1.2,TLSv1.1"
  4. Save your changes and restart the platform.