Just for completeness in case others may run into this same issue.
We believe we have resolved this with considerable help from SAP. (We had also logged this as an SAP message and gotten a response.)
We increased the amount of memory the Java instance starts with.
- Logged into the http://<server>:<port>/nwa Netweaver Administrator
- Path Configuration -> Infrastructure -> Java System Properties, click on tab Memory VM Parameters
- Increased the maxHeapSize making use of more memory on the box (ensure that you have free memory to allocate here)
We then edited the LMS configuration for the Content Player to increase the maximum number of JCO connections it could make. (Followed SAP note 1670274)
- Logged into http://<server>:<port>/lms/mediator/config
- Click Configure for your system.
- Click on the tab JCo Settings
- In our case, we set the Maximum number of JCO connections to 100 from the default 50.
- Restarted the portal (did this to ensure we restarted everything we needed to. Probably could have just restarted some services)
Increasing the memory allocated to the Java instance and doubling the number of JCO connections allowed us to run 12 users all starting the course at the same instant.
We are continuing to experiment with different settings trying to understand what to change to cause what effects.
Thank-you all,
Deb Nugent.
