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Open connection

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Open connection

Procedure

Qlik Sense performs the following procedure:

  • Open a socket to the Qlik Sense Engine Service (QES). This happens every time a user opens an app in Qlik Sense.

Success

In case of success, log entries are written in the following files throughout the procedure:

  • <MachineName>_AuditActivity_Proxy.txt
  • <MachineName>_Service_Proxy.txt

Errors

Web socket connection could not be opened

Web socket connection could not be opened error
Description Command=Open connection;Result=400;ResultText=Error: Web socket connection could not be opened
Message Connection '<ID of connection>' has been transferred to a streaming state to send a single error message
Action

Proceed as follows:

  1. Check if the QES is up and running. If not, start the QES.
  2. Check that it is possible to connect to the QES.

Web exception: Protocol error: Response stream exists

Web exception: Protocol error: Response stream exists error
Description Command=Open connection;Result=400;ResultText=<different from zero>;ResultText=Error: <error message>
Message Web exception: Protocol error: Response stream exists. Remote endpoint '{0}' + various exception message
Action

Check the following:

  • That the QES is up and running.
  • That you can connect to the QES on port 4747 locally on the server.

Web exception: Protocol error: No response stream exists

Web exception: Protocol error: No response stream exists error
Description Command=Open connection;Result=400;ResultText=<different from zero>;ResultText=Error: <error message>
Message Web exception: Protocol error: No response stream exists when contacting '{0}' ' + various exception message
Action

Check the following:

  • That the QES is up and running.
  • That you can connect to the QES on port 4747 locally on the server.

Web exception when contacting service uri

Web exception when contacting service uri error
Description Command=Open connection;Result=400;ResultText=<different from zero>;ResultText=Error: <error message>
Message Web exception when contacting service uri {0} ' + various exception message
Action

Check that service at URI is available.

Connection has been transferred to a streaming state to send a single error message

Connection has been transferred to a streaming state to send a single error message error
Description Command=Open connection;Result=400;ResultText=<different from zero>;ResultText=Error: <error message>
Message Connection '{0}' has been transferred to a streaming state to send a single error message + various exception message
Action

Check the following:

  • That the QES is up and running.
  • That you can connect to the QES on port 4747 locally on the server.

Web socket connection could not be opened

Web socket connection could not be opened error
Description Command=Open connection;Result=400;ResultText=<different from zero>;ResultText=Error: <error message>
Message Web socket connection could not be opened
Action

Check the following:

  • That the QES is up and running.
  • That you can connect to the QES on port 4747 locally on the server.