OGG Extract sloweness due to combination of Rowid changes to base table and fetchcols(*) setting in extract (Doc ID 2965720.1)

Last updated on JULY 20, 2024

Applies to:

Symptoms

Customer extract showing a LAG of more than 25 hours after OS patching.

EXTRACT Performance Latency (OGG$CAP_EXT) --> The latency of the Capture process 'OGG$CAP_EXT' is 90740 seconds!

Changes

 Base table underwent ROWID/Key  changes. Typical operations resulting in ROWID changes are

1) Export and import of the table
2) dbms_redefinition of table
3) ALTER TABLE MOVE
4) ALTER TABLE SHRINK
5) FLASHBACK TABLE
6) UPDATE TO KEY PARTITION resulting in data moved to different partitions

Cause

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