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--- | |
layout: "docs" | |
page_title: "Convergence Simulator" | |
sidebar_current: "docs-internals-simulator" | |
description: |- | |
The graph below shows the expected time to reach various states of convergence | |
depending on the settings which are tunable below the graph. Below the graph, | |
the estimated maximum bandwidth usage is shown per node in kilobits per | |
second. | |
--- | |
<h1>Serf Convergence Simulator</h1> | |
<p> | |
The graph below shows the expected time to reach various states of convergence | |
depending on the settings which are tunable below the graph. Below the graph, | |
the estimated maximum bandwidth usage is shown per node in <em>kilobits</em> | |
per second. | |
</p> | |
<p> | |
The default values in the boxes are also the default values that Serf | |
is configured with, where applicable. | |
</p> | |
<div class="row"> | |
<div id="graph"></div> | |
</div> | |
<div class="row"> | |
<div class="col-md-12"> | |
<h4>Estimated max bandwidth: <span id="bytes">0</span> kbps/node</h4> | |
</div> | |
</div> | |
<div class="row"> | |
<div class="col-sm-6"> | |
<h5>Gossip Interval</h5> | |
<p>The gossip interval controls how often messages are gossiped to other nodes</p> | |
<input type="text" id="interval" value="0.2" class="simulator-input"> seconds | |
</div> | |
<div class="col-sm-6"> | |
<h5>Gossip Fanout</h5> | |
<p>The gossip fanout controls how many nodes we gossip with</p> | |
<input type="text" id="fanout" value="3" class="simulator-input"> nodes | |
</div> | |
</div> | |
<div class="row"> | |
<div class="col-sm-6"> | |
<h5>Nodes</h5> | |
<p>This controls how many simulated nodes are in the cluster</p> | |
<input type="text" id="nodes" value="30" class="simulator-input"> | |
</div> | |
<div class="col-sm-6"> | |
<h5>Packet Loss</h5> | |
<p>This controls the amount of simulated packet loss [0, 100)</p> | |
<input type="text" id="packetloss" value="0" class="simulator-input"> % lost packets | |
</div> | |
</div> | |
<div class="row"> | |
<div class="col-sm-6"> | |
<h5>Node failures</h5> | |
<p>This controls what percent of simulated nodes are failed</p> | |
<input type="text" id="failed" value="0" class="simulator-input"> % failed | |
</div> | |
<div class="col-sm-6"> | |
</div> | |
</div> |