RMAN Duplicate hangs when using DCD and TCPS
(Doc ID 1676197.1)
Last updated on FEBRUARY 25, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
RMAN active duplicate for standby hangs during the datafile copy stage. SSL Oracle Net and Dead Connection Detection (DCD) is in use.
The hang is intermittent - that is, sometimes the duplicate may work. At other times, it may just hang for days until the process is killed from the database and the operating system level. An RMAN debug reveals a repeat of the following message:
The hung processes must be killed from the database and operating system level.
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