5.0 features now documented
Documentation has been added for the following Apama 5.0 features:
Dashboard tree controls, which let you create rich and compact visual presentations of hierarchical data. A tree control is most often used in a multi-panel application for display navigation. A tree control can also be used in any application where hierarchical data is most effectively displayed using expandable/collapsible tree nodes.
TRACE log level, which generates the most verbose output. You can specify
TRACE anywhere you can specify the log levels provided in earlier releases:
OFF,
CRIT,
FATAL,
ERROR,
WARN,
INFO,
DEBUG and it applies to the correlator, router, IAF and sentinel agent.
New fields in the status lines the correlator logs periodically. The
lcn,
lcq, and
lct fields provide metrics about the most backed up queue, and the
runq field indicates the number of contexts that have work to do but are not currently running.
The EPL utility event that provides access to the correlator Management interface has additional actions that return information about the correlator that the Management interface is running in. These actions are defined in the
com.apama.correlator.Component event. There are
engine_management utility options that provide similar behavior. The correlator logs all of these values in its log file at start up. The available actions are:
getHostname() - Returns the host name of the host the correlator is running on. The host name is dependent on the environment's name resolution configuration, and the name can be used only if the name resolution is correctly configured. The name is the same as that logged in the correlator log file, for example,
dev3.acme.com.
getComponentPort() - Returns the port the correlator is running on.
getComponentPhysicalId() - Returns the physical ID of the correlator.
getComponentLogicalId() - Returns the logical ID of the correlator.
getComponentName() - Returns the name that is used to identify the correlator. You can set this name by specifying the
-N correlator command line flag (or by means of the
extraArgs attribute in the Ant macros). The default name of the correlator is
correlator.
To use the Management interface, add the Correlator Management bundle to your Apama project. Alternatively, you can directly use the EPL interfaces provided in APAMA_HOME\monitors\Management.mon.
