</h2><p>You can configure the following tracing options in Istio:</p><ol><li><p>Random sampling rate for percentage of requests that will be selected for trace
generation.</p></li><li><p>Maximum length of the request path after which the path will be truncated for
reporting. This can be useful in limiting trace data storage specially if you&rsquo;re
collecting traces at ingress gateways.</p></li><li><p>Adding custom tags in spans. These tags can be added based on static literal
values, environment values or