Transactions In PDB Remain In 'PREPARED' State In x$ktuxe Without An Entry In dba_2pc_pending View in RAC

(Doc ID 2374004.1)

Last updated on JUNE 18, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

Multi-node global transaction running in a PDB (in RAC) ends up in prepared state SCO|COL|DEAD but without an entry in the pending transaction tables.

i.e The transaction shows as 'PREPARED' on table x$ktuxe but there are no entries associated to it in dba_2pc_pending view.

The transaction also cannot be cleaned manually by inserting dummy entries in the pending transactions and pending sessions tables and executing a commit force
or rollback force of it and then purging the transaction.

Changes

 

Cause

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