he rule directs Mixer to send all <code>doublerequestcount.metric</code> instances to the <code>doublehandler.prometheus</code> handler. Because there is no <code>match</code> clause in the rule, and because the rule is in the configured default configuration namespace (<code>istio-system</code>), the rule is executed for all requests in the mesh.</p><h3 id="understanding-the-logs-configuration">Understanding the logs configuration</h3><p>The logs configuration directs Mixer to send log entries to stdout. I