You can adjust the buffer size of the Tracer header to increase the limit for unprocessed events. By default, the system saves up to 50,000 items for unprocessed events during a Tracer operation. If the buffer exceeds this limit, Tracer processing ends.
<env name="tracer/queue/type" value="file" /><env name="tracer/queue/file/limit" value="
<env name=" tracer/queue/header/limit" value="nnnnn" /
where nnnnn is a nonnegative integer.
As an alternative to updating the prconfig.xml file, you can use Dynamic System Settings to configure your application.