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New Contributor III

Error in loading data in qlik sense

Trying to load 3 tables  Table 1  = 1.11 gb, Table 2 = 2.18 mb ,Table 3 = 398.8 mb from hadoop datbase with the help of IMPALA CONNECTOR.But on loading data it gives me an error as "Unable to get column information for the fields that are used in the query: The connection has been disabled. ". While using the debug mode data is loaded without any error. I am not getting whats the issue. even i have to schedule this app and the reload task fails each time.