Adriano created IMPALA-7031: ------------------------------- Summary: Detailed failure reason for clients when a query is cancelled from the WebUi Key: IMPALA-7031 URL: https://issues.apache.org/jira/browse/IMPALA-7031 Project: IMPALA Issue Type: New Feature Reporter: Adriano
In big clusters with many jdbc/odbc users, in order to save resources are often implemented scripts that automatically cancel queries (e.g. long running queries) (the scripts typically are using the Impala Webui). Typical Scenario: # A jdbc/odbc client submit a query # The Coordinator start the query execution # The query is cancelled from the Coordinator WebUi # The jdbc/odbc client ask to the Coordinator the query status (GetOperationStatus) # The Coordinator answer "unknown query ID" (as the query was cancelled) # For the client perspective the query failed for "unknown query ID" Currently, if a running query is cancelled from the impalad WebUI, the client will just receive an 'unknown query ID' error on the next fetch/getOperationStatus attempt. It would be good to be able to explicitly call out this case. -- This message was sent by Atlassian JIRA (v7.6.3#76005)