Matt Burgess created NIFI-1409:
----------------------------------
Summary: ExecuteSQL gives transfer error when result set has no
columns
Key: NIFI-1409
URL: https://issues.apache.org/jira/browse/NIFI-1409
Project: Apache NiFi
Issue Type: Bug
Reporter: Matt Burgess
When the result set from ExecuteSQL has no columns, a bulletin is issued saying
a flowfile was not transferred:
13:35:12 ESTERROR05845c66-73a4-49ff-a973-ad986fb651bf
ExecuteSQL[id=05845c66-73a4-49ff-a973-ad986fb651bf] Unable to execute SQL
select query SELECT * FROM test due to
org.apache.nifi.processor.exception.ProcessException:
org.postgresql.util.PSQLException: The column index is out of range: 1, number
of columns: 0.. No incoming flow file to route to failure:
org.apache.nifi.processor.exception.ProcessException:
org.postgresql.util.PSQLException: The column index is out of range: 1, number
of columns: 0.
13:35:12 ESTERROR05845c66-73a4-49ff-a973-ad986fb651bf
ExecuteSQL[id=05845c66-73a4-49ff-a973-ad986fb651bf]
ExecuteSQL[id=05845c66-73a4-49ff-a973-ad986fb651bf] failed to process due to
org.apache.nifi.processor.exception.FlowFileHandlingException:
StandardFlowFileRecord[uuid=c9077d5c-d873-4bf2-a8c0-4cc92a6f3309,claim=,offset=0,name=258316166470532,size=0]
transfer relationship not specified; rolling back session:
org.apache.nifi.processor.exception.FlowFileHandlingException:
StandardFlowFileRecord[uuid=c9077d5c-d873-4bf2-a8c0-4cc92a6f3309,claim=,offset=0,name=258316166470532,size=0]
transfer relationship not specified
The problem seems to be in JdbcCommon.createSchema():
https://github.com/apache/nifi/blob/nifi-0.4.1/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/util/JdbcCommon.java#L130
This line asks for the table name for the first column, and when there are no
columns, a SQLException is thrown, which becomes a ProcessException in the
ExecuteSQL processor. In addition, the exception handling tries to route the
flowfile to failure, but for the newly created flowfile (to contain the result
set), the reference has since been lost, and thus the flowfile is never
transferred.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
