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Why IE started to hang when trying to drop Pdb. (Doc ID 2342454.1)

Last updated on JANUARY 10, 2018

Applies to:

Oracle GoldenGate - Version 12.2.0.1.0 and later
Information in this document applies to any platform.

Symptoms

Tried using the command "register extract drop container (<Pdb name>)" to un-register the PDB.
The IE started to hang and shows

EXTRACT CDB1T_EA Last Started 2017-10-06 05:59 Status RUNNING
Checkpoint Lag 25:56:05 (updated 00:00:00 ago)
Process ID 53932
Log Read Checkpoint Oracle Integrated Redo Logs
2017-10-05 11:13:13
SCN 2827.2241954086 (12144114499878)

PDB drop in progress. State: 2 <===============
MDH of the to-be dropped PDBs: 0x80ac7274fae1e

Cause

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