Slow Data Pump with REMAP_SCHEMA and REMAP_TABLESPACE parameters

(Doc ID 429846.1)

Last updated on SEPTEMBER 04, 2017

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2]
Information in this document applies to any platform.
***Checked for relevance on 15-Feb-2016***


When importing data with DataPump and remapping the schema and/or the tablespace, the final stage of the import takes quite a dramatic time to complete, even more than the actual data import.
The DataPump import utility shows as last line in many situation:


If you check the DataPump worker process errorstack using pstack or using oradebug in the following sequence:

ps -ef | grep dw
sqlplus "/ as sysdba"
oradebug setospid <ospid from ps>
oradebug dump errorstack 10

The following stack will result every time the stack is dumped:

LpxmListDeleteObject XdkDomFreeNode LpxsutFreeXMLNode lpxxpfreexobj lpxsSSPopVariableSet lpxsTPLResetParams lpxsCaTProcessAction LpxsutProcessChildren ...


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