ia-label="Customizing tracing tag length"><a href=#customizing-tracing-tag-length>Customizing tracing tag length</a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><p>Istio provides the ability to configure advanced tracing options,
such as sampling rate and adding custom tags to reported spans.
Sampling is a beta feature, but adding custom tags and tracing tag length are
considered in-development for this release.</p><h2 id=before-you-begin>Before you begin</h2><