Messaging engine cannot be started as there is no runtime initialized for it yet

I sometimes have issues with message engine not running. Usually I'll just try to restart the whole system and hope that it goes away.

If it doesn't work, in most cases, it is caused by a corrupted file store used by the message engine and the suggestion from the Internet is to delete these files, which seems to work fine.

Sometimes, with the message engine uses a database store, I had a very similar issue. I find it quite hard to find out the exact root cause. So I chose the easier path by simply deleting the whole message engine, create a new one, giving a new schema name for the data store. This ensures it creates new tables when message engine is initialized the first time. 

Creating a new message engine and re-assigning bus destinations usually take less than 5 minutes, and it seems a lot easier than troubleshooting and finding the root cause of the issue.

JDBC Connection fails due to SQL Server allows TLS1.2 only

In a recent upgrade, I had to get Maximo 7.6.1.2 to work with SQL Server 2019 (15.0.4198.2 - Jan/2022). 

Initially, I thought I needed to replace the JDBC driver that comes with Maximo with the latest JDBC driver version (10.2). However it doesn't solve the issue.

After searching the Web, I came across this page which suggests the problem is due to SSL protocol TLS 1.2 is required.

Thus, I managed to fix the issue by adding this parameter to the end of the jdbc connections string: sslProtocol=TLSv1.2;

The full connection string will look as follows:

mxe.db.url=jdbc:sqlserver://;serverName=[SERVERNAME];databaseName=[DBNAME];portNumber=1433;integratedSecurity=false;sendStringParametersAsUnicode=false;sslProtocol=TLSv1.2;

The other method that seems to work is adding this parameter: -Dcom.ibm.jsse2.overrideDefaultTLS=true to the JVM argument of the Application server, or execution command of any tools running java. For example, for the integrityui.bat tool, I edit the file and update it as below:

@..\java\jre\bin\java -Dcom.ibm.jsse2.overrideDefaultTLS=true -Dswing.handleTopLevelPaint=false -classpath %MAXIMO_CLASSPATH% psdi.configure.UpgradeUI -i