MGW agent fails to start with ORA-01034 ORA-27101
(Doc ID 880523.1)
Last updated on APRIL 09, 2020
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 9.2 to 11.2]
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
The instance that the MGW agent is meant to connect to is available.
The MGW agent does not use a tns alias to connect to the database.
However, the MGW agent fails to start with the following errors:
oracle.mgw.admin.MgwAdminException:  Failed to connect to database. SQL error: 1034, connect string: jdbc:oracle:oci8:@
java.sql.SQLException: ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
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