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Data Source Interceptors
Column Display Related Tasks Related Topics
A data source interceptor intercepts dynamic cluster scale up operations to validate that the scaling operation will not overload the database.
During dynamic cluster scale up operations, new dynamic server instances in a dynamic cluster are started. If data sources are targeted to the dynamic cluster, this may result in the creation of additional connections to the databases, which may result in exceeding database capacities. An interceptor intercepts a scaling action. A data source interceptor intercepts a dynamic cluster scale up operation to validate that the scaling operation will not overload the database.
Column Display
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The following table lists all of the data points that you can display in columns on this page.
Name Description Name The alphanumeric name for this data source interceptor.
MBean Attribute:
DatasourceInterceptorMBean.NameChanges take effect after you redeploy the module or restart the server.
URLs Pattern The regular expression for the connection URLs
The regex pattern for the connection URLs. The URL pattern may cover multiple databases in case such databases are actually running on the same database machine.
MBean Attribute:
DatasourceInterceptorMBean.ConnectionUrlsPatternConnection Quota Maximum number of connections allowed for the database matching the URL pattern
MBean Attribute:
DatasourceInterceptorMBean.ConnectionQuotaPriority The priority of this intercepted method in the interceptor chain. An interceptor with a higher priority will be executed earlier than an interceptor with a lower priority.
Note: 1073741823 is actually Integer.MAX_VALUE / 2 as defined in InterceptorPriorities.
MBean Attribute:
DatasourceInterceptorMBean.Priority
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