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Attempting to do a Datapump import into a RAC database results in the following errors being raised:
The root cause of this is that the dumpfile was not on a shared filesystem and this was a 3 node RAC environment. After 11.2 you either need to have the dumpfile on a shared filesystem or specify the CLUSTER=NO IMPDP command line option.
To force Datapump Import to use only the instance where the job is started and to replicate pre-11.2 behavior, specify CLUSTER=NO. This will prevent Datapump from allocating worker processes on the other instances in the RAC cluster.
Set CLUSTER=NO as if using a non-shared destination for the dumpfile. See also the "CLUSTER" command line option definition in the Utilities manual, which specifies:
Purpose: Determines whether Data Pump can use Oracle Real Application Clusters (Oracle RAC) resources and start workers on other Oracle RAC instances.
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