Finally Sun seems is learning something from MySQL, they are selling added-value tools for paying customers.
"GlassFish Enterprise Server subscribers are entitled to Enterprise Manager, which delivers improved management and performance monitoring features."
Before the Enterprise Manager was available only for Java CAPS. The new version seems to be a lot improved anyway:
- SNMP monitoring: Leverages existing SNMP infrastructure to monitor GlassFish
- Performance Advisor: Proactively monitors key performance indicators and automatically tunes JDBC connection pools.
- Performance Monitor: Diagnoses performance bottlenecks with visibility into key GlassFish performance metrics.
From my point of view Glassfish ESB is not an opensource product with optional commercial support, it is a commercial product with the additional benefit of being opensource. Putting words in the right order makes a lot of difference sometimes.