Dashboard Client communicates with the Repository, Runtime and Historical databases using Java™ Database Connectivity (JDBC), which manages reusable pools of database connections.
There must be sufficient connections in these pools to accommodate multiple simultaneous Dashboard sessions. If there are no sufficient connections in each of these pools, you may experience long, unexpected and unpredictable delays in their Dashboard activities. The recommended initial maximum connection pool size is 100. If long delays are experienced, check that the maximum size of each pool is 100. If delays persist, try increasing the maximum size of each pool. If delays persist after increasing the pool sizes, look for solutions elsewhere
The data pool maximum sizes are set from the WebSphere® Application Server administrative console. To increase the maximum size of the databases connection for each of the above data sources: