/tags/events/Recent content in Events on ClusterCockpitHugoen/docs/explanation/lineprotocol/Mon, 01 Jan 0001 00:00:00 +0000/docs/explanation/lineprotocol/<h2 id="overview">Overview</h2> <p>ClusterCockpit uses an <a href="https://docs.influxdata.com/influxdb/v2.1/reference/syntax/line-protocol/">InfluxData line-protocol</a> flavor for transferring messages between its components. All messages share the same text-based format:</p> <div class="highlight"><pre tabindex="0" style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-text" data-lang="text"><span style="display:flex;"><span>&lt;measurement&gt;,&lt;tag_set&gt; &lt;field_set&gt; &lt;timestamp&gt; </span></span></code></pre></div><p>Where <code>&lt;tag_set&gt;</code> and <code>&lt;field_set&gt;</code> are comma-separated lists of <code>key=value</code> entries. The timestamp is Unix epoch time in <strong>seconds</strong>.</p> <div class="alert alert-primary" role="alert"> <h4 class="alert-heading">Backward Compatibility</h4> Initially only metrics (number values) were sent. The specification was extended to support messages with different purposes (events, controls). This extension is backward-compatible — metric messages are unchanged. </div> <h2 id="message-categories">Message Categories</h2> <p>Three message categories are distinguished by their field key:</p>