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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

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

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

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

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

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

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.