Integrate Software AG Products Using Digital Event Services 10.4 | Integrate Software AG Products Using Digital Event Services | MashZone NextGen Help | Appendix | Administration | MashZone NextGen Repositories | Tuning the MashZone NextGen Repository Connection Pool
 
Tuning the MashZone NextGen Repository Connection Pool
In addition to basic connection configuration, you can configure the connection pools for the MashZone NextGen Repository. In many cases, you need to tune this configuration to optimize your MashZone NextGen environments.
Note: For a complete list of connection properties, see Tomcat Datasource Properties.
To tune the connection pool, you update properties in the <Resource> element for the MashZone NextGen repository in the MashZoneNG-install/apache-tomcat/conf/context.xml file and then restart MashZone NextGen to apply these changes.
Connection Pool Size Properties
initialSize
The initial number of connections to create when the pool starts up. This defaults to 0.
maxWaitMillis
The maximum number of milliseconds that the pool will wait when no connections are available before failing. Defaults to -1 which is an indefinite wait.
Idle Pool Connection Properties
maxIdle
The maximum number of connections that can be idle without connections being released. Defaults to 20. Set this to -1 to prevent any connections being released.
minIdle
The minimum number of idle connections that can exist before new connections are added to the pool. This defaults to 0, indicating no new connections should be created.
testWhileIdle
Whether connections should be tested when idle.
If this is enabled, idle connections are tested using the Validation query. See Move the MashZone NextGen repository to a robust database solution for more information on validation queries.
timeBetweenEvictionRunsMillis
The number of milliseconds between tests of idle connections. This defaults to -1, which prevents all idle connection testing.
numTestsPerEvictionRun
The number of connections to test during any idle connection test run.
minEvictableIdleTimeMillis
The minimum number of milliseconds that a connection can be idle before being tested for eviction. Default is 3 minutes.
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