derby.storage.indexStats.trace

Function

This property allows you to enable more detailed logging of index cardinality statics than the derby.storage.indexStats.log property provides. It also allows you to specify where the tracing output should appear. Valid values are as follows:

• off

  Tracing is disabled (the default).

• log

  Tracing output goes to the log file, derby.log.

• stdout

  Tracing output goes to standard output.

• both

  Tracing output goes to both derby.log and standard output.

For more information about index statistics, see "Working with cardinality statistics" in Tuning Derby.

Syntax

derby.storage.indexStats.trace=
    { off | log | stdout | both }

Default

off.

Dynamic or static

Static. For system-wide properties, you must reboot Derby for the change to take effect. For database-wide properties, you must reboot the database for the change to take effect.