Run a managed server in MSI Mode weblogic

Oracle Weblogic Server

if you have started the Managed Server at least once while the Administration Server was running, msi-config.xml and SerializedSystemIni.dat will already be in the server’s root directory. The file is not replicated. If it is not already in the Managed Server’s root directory, you must create one.

If msi-config.xml and SerializedSystemIni.dat are not in the root directory, you can either:

– Copy config.xml and SerializedSystemIni.dat from the Administration Server’s root directory (or from a backup) to the Managed Server’s root directory. Then, rename the configuration file to msi-config.xml, or
– Use the -Dweblogic.RootDirectory=path startup option to specify a directory that already contains these files.

MSI Mode and the Domain Log File

Each WebLogic Server instance writes log messages to its local log file and a domain-wide log file. The domain log file provides a central location from which to view messages from all servers in a domain.

Usually, a Managed Server forwards messages to the Administration Server, and the Administration Server writes the messages to the domain log file. However, when a Managed Server runs in MSI mode, it assumes the role of writing to the domain log file.

By default, the pathnames for local log files and domain log files are relative to the Manged Server’s root directory. With these default settings, if a Managed Server is located in its own root directory (and it does not share its root directory with the Administration Server), when it runs in MSI mode the Managed Server will create its own domain log file in its root directory.

If a Managed Server shares its root directory with the Administration Server, or if you specified an absolute pathname to the domain log, the Managed Server in MSI mode will write to the domain log file that the Administration Server created.

Note: The Managed Server must have permission to write to the existing file. If you run the Administration Server and Managed Servers under different operating system accounts, you must modify the file permissions of the domain log file so that both user accounts have write permission.

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