Matt Burgess created NIFI-5834:
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Summary: Restore default PutHiveQL error handling behavior
Key: NIFI-5834
URL: https://issues.apache.org/jira/browse/NIFI-5834
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Reporter: Matt Burgess
As part of adding Rollback On Failure to PutHiveQL (via NIFI-3415), the code
was refactored to allow failures to be rolled back rather than transferred to
the failure relationship (if Rollback On Failure is set). As part of that, all
transient SQLExceptions were declared to be of type "Temporal Failure". This
(along with the refactor) allowed the failures to be handled as rollbacks or
transfers as specified.
Hive returns all exceptions as transient SQLExceptions, with an error code that
better infers the behavior of the operation. This, via the discovery of
NIFI-5045, resulted in the handling of error codes within the Hive error code
range. However the default behavior when the error code is not in the
Hive-valid range is to rollback regardless of whether Rollback On Failure is
true or not. This was done as a "better safe than sorry" approach, but it made
the behavior inconsistent with earlier versions of the processor, where
failures were simply routed to failure rather than rolling back.
This case proposes to return the default behavior for unknown SQLExceptions to
"TemporalFailure", which will make the behavior consistent with previous
versions of the processor, where unknown errors will be transferred to failure
unless Rollback on Failure is true.
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