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TYPE2 Objects Filling up UNDO

edited Dec 30, 2018 4:03AM in Database Administration (MOSC) 5 commentsAnswered

Hello all!

One of my three Production UNDO tablespaces is filling up much faster than the other two - here is a snapshot of free space:

TABLESPACE_NAME SUM(BYTES)/1024/1024/1024

------------------------------ -------------------------

UNDOTBS1 53.6245117

UNDOTBS2 4.15234375

UNDOTBS3 50.522644

If I pull the segments from each UNDO tablespace they are all SYS-owned TYPE2 segment-types.  But the ones in UNDO2 tablespace are significantly larger than those that are in UNDO1 and UNDO3.  I don't want to just add more tablespace - trying to figure out if this is some sort of bug.

OWNER SEGMENT_NAME SEGMENT_TYPE       SUM(BYTES)/1024/1024

--------------- ---------------------------------------- ------------------ --------------------

SYS _SYSSMU767_3284342863$ TYPE2 UNDO 407.125

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