specifies whether to
accept or deny the log event when the log event message is identical
to the last message processed by the appender. Valid values are TRUE
or FALSE:
TRUE
specifies to accept
the log event.
FALSE
specifies to deny the
log event.
Details
This filter compares
only the last message processed by this appender with the current
log event message.
As a best practice,
you can use this filter as the first filter in appender filtering
policies to discard repeated messages.
Example
The following filter
definition does not accept log events if a log event message has already
been logged by this appender: