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Error "ORA-12801: error signaled in parallel query server" while Executing ODI Database Statements with "Degree of Parallelism on Target" Greater than 1 (Doc ID 2389021.1)

Last updated on JANUARY 14, 2021

Applies to:

Oracle Data Integrator - Version 12.2.1.0.0 and later
Information in this document applies to any platform.

Symptoms

NOTE: In this article, values used in errors and examples, represent a fictitious sample for clarity.  These and any value placeholders including <> which surround the placeholders should all be replaced by the actual values used in your environment. Any similarity to actual environments, past or present, or users, living or dead, is purely coincidental and not intended in any manner.

While executing any command on an Oracle Database through Oracle Data Integrator (ODI) and a data server that has the "Degree of Parallelism on target" greater than 1, the following ORA-12801 error may occur:

Caused by: org.civ.architecture.batch.BatchException: Unable to run load plan, caused by: ODI-1519: Serial step "<STEP_NAME> (InternalID:<ID>)" failed because child step "<STEP_NAME> (InternalID:<ID>)" is in error.
ODI-1518: Parallel step "<STEP_NAME> (InternalID:<ID>)" failed; 2 child step(s) in error, which is more than the maximum number of allowed errors (0) defined for the parallel step.  Failed child steps: <STEP_NAME> (InternalID:<ID>), <STEP_NAME> (InternalID:<ID>)
ODI-1519: Serial step "<STEP_NAME> (InternalID:<ID>)" failed because child step "<STEP_NAME> (InternalID:<ID>)" is in error.
ODI-1217: Session <STEP_NAME> (<ID>) fails with return code ODI-1298.
ODI-1226: Step <STEP_NAME> fails after 1 attempt(s).
ODI-1298: Serial task "null (50)" failed because child task "null (120)" is in error.
ODI-1298: Serial task "<TASK_NAME> (60)" failed because child task "null (120)" is in error.
ODI-1227: Task LKM Oracle to Oracle Datapump Plus(LRS) (Create External Table on SOURCE) fails on the source ORACLE connection <SOURCE_CONNECTION>.
Caused By: java.sql.SQLException: ORA-12801: error signaled in parallel query server P007, instance <database_instance_name_here> (1)
ORA-29913: error in executing ODCIEXTTABLEOPEN callout
ORA-29400: data cartridge error
KUP-04001: error opening file /directory/file.LOG

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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