<ul><li>Splunk's 'stats' and 'tstats' operations can cause events to be dropped unexpectedly.</li><li>The problem occurs when there are empty fields on the right side of the 'by' clause.</li><li>To mitigate this, the 'fillnull' command can be used to fill empty fields with a default value.</li><li>For datamodels and 'tstats', it is important to ensure that all fields on the right side are guaranteed to be present.</li></ul>

Making Use of Fillnull and Values() to Increase Rule Resiliency in Splunk

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