When we published a datasoruces on server I am getting below error. They working just fine , we upgraded Cloudera ODBC driver to latest and from then we are getting this issue. Even if we revert back be are facing same issue. Any one faced this issue and were able resolve the issue.
com.tableausoftware.nativeapi.dll.DataSourceException: Unable to connect to the ODBC Data Source.
Check that the necessary drivers are installed and that the connection properties are valid. [Cloudera][Hardy] (34) Error from server: SSL_connect: certificate verify failed.
Unable to connect to the server "HOST NAME ". Check that the server is running and that you have access privileges to the requested database.
I believe the following article might solve your issue :
Please let me know if it helps.