Error when calling the Impala Thrift API GetOperationStatuts: Could not refill buffer

Hi Community,

I have been trying for a week to import tables from the Kudu DataLayer using the Impala Cloudera connector but I get this error message : 

I am currently doing a direct query with Impala server and have created few of the charts.  Few of my charts though popultae but few of them show this error. 

Any one has an idea from thoses errors please ? 

Thank you for help.