Recently we migrated an ADF app from 12.1.3 to 12.2.1 and we faced a problem with the log messages in the application server.
Specifically, the deployed application returned zero log messages when navigating to em>application>Logs>view Log messages.
The log configuration and the search results are as you can see in the following screenshots:
After many checks and dummy applications we found out that this was not a migration issue as we first thought, but a 12.2.1 issue. The cause for this is the entry Weblogic-Application-Version in the MANIFEST.MF file that is used for the versioning of the application. If the deployed project does not include a manifest file, or if this specific entry is missing then the log messages in EM are queried correctly.
For some reason it seems that this entry causes a configuration issue on where EM needs to look for the logs.
Silver lining, the logs are not completely gone! If you check the diagnostic log files of the server you will find all the application logs (depending on how you have configured your loggings).
So, if you are using Weblogic-Application-Version in your Manifest file, you will probably need to configure your weblogic and check the logs from the diagnostic files instead of the provided query page for the application.
In the application development world since 2011. Working with Spring Framework, ADF/SOA/Unified BPM Suite, Oracle Weblogic, Oracle Database.
Hello there, did you find any workaround for this problem ?
I can’t figure out how to configure the logs so it shows my application logs correctly in EM.
Best regards
Bruno
Hi Bruno,
as I say in the post, if you have a manifest file try removing the Weblogic-Application-Version entry. If you do not use one then you should see the logs. If versioning is mandatory for your project and you cannot remove this entry then unfortunately we have not found how to show the logs in EM, but you can still see them in the diagnostic log files.
hello thanks for your reply. For now i’ve got to keep the versionning. I managed to find my logs in the diagnostic file, but it’s a shame we can’t use default EM builtin for this.
Best regards.
Bruno.