ORA-39126 and ORA-12838: cannot read/modify an object after modifying it in parallel from Datapump Export
(Doc ID 1558708.1)
Last updated on JANUARY 09, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.4 [Release 11.2]Information in this document applies to any platform.
Symptoms
Performing datapump export and receiving errors:
Estimate in progress using BLOCKS method...
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.FETCH_XML_OBJECTS []
ORA-12838: cannot read/modify an object after modifying it in parallel
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 86
ORA-06512: at "SYS.KUPW$WORKER", line 8996
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.FETCH_XML_OBJECTS []
ORA-12838: cannot read/modify an object after modifying it in parallel
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 86
ORA-06512: at "SYS.KUPW$WORKER", line 8996
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |