Superset impala connection error cdp-3

[pankajshanbhag]

With impyla 0.14 , while connecting to impala through superset getting below error :

impala://host:port/default

Unexpected error connect() got an unexpected keyword argument 'username'

{
"metadata_params" : {},
"engine_params" : {
"connect_args" : {
"auth_mechanism" : "GSSAPI",
"kerberos_service_name" : "impala"
}
}
}

• Enabled the impersonate user