ORA-12801 ORA-12850 Running DataPump Export On RAC (Doc ID 1374088.1)

Last updated on MARCH 16, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 and later
Information in this document applies to any platform.
***Checked for relevance on 16-Mar-2017***

Symptoms

Running data pump export on RAC gives error related to parallel query server despite not using PARALLEL parameter

ORA-31626: job does not exist
ORA-31637: cannot create job SYS_EXPORT_SCHEMA_01 for user SYS
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95
ORA-06512: at "SYS.KUPV$FT_INT", line 798
ORA-12850: Could not allocate slaves on all specified instances: 4 needed, 3 allocated
ORA-12801: error signaled in parallel query server P002, instance 3599


Additionally, query against global views GV$ may fail with same error as well.

SELECT * FROM GV$LOCK;

ERROR at line 1:
ORA-12850: Could not allocate slaves on all specified instances: 4 needed, 3 allocated
ORA-12801: error signaled in parallel query server P002, instance 3599

Changes

Parameter parallel_execution_message_size value was changed on one of the nodes.

Cause

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