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Undo Tablespace- RAC

edited Feb 23, 2014 8:39AM in Database Administration (MOSC) 6 commentsAnswered ✓

Hi Gurus,

11203 RAC -3 node

RHEL 6.1

I have question related to undo,if long running insert after reaching the maxsize of UNDOTBS1(ORA-30036)

tablespace is being killed  and smon is in between doing a recovery on UNDOTBS1 on instance1 and meanwhile another UNDO is created and is assigned to the instance1,what will happen to other transactions that are looking for same blocks that are being currently going through rollback ,they should get ORA-01555 ,correct?

what if other transactions that needs to select data from the table that is currently getting rollback will they use the new UNDO tablespace or the old one?Will switching undo tablespace while rollback is happening will cause any database issues?

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