Dbms_refresh.refresh Locks The Database Instance

(Doc ID 2402875.1)

Last updated on JULY 05, 2018

Applies to:

Oracle SOA Suite - Version 11.1.1.3.0 and later
Information in this document applies to any platform.

Symptoms

After migrating the DB from 11g to 12c RAC, dbms_refresh.refresh intermittently locks the database instance and only blocking the sys.mlog$ session then all others session terminate successfully.

Changes

 Migration of the database to 12C

Cause

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