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<!DOCTYPE html>
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<title>Zabbix Running on Low Memory Mode - Sipmann</title>
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<meta name="description" content="How to solve Zabbix Health logging *value cache working in low memory mode*">
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<h1><b><a href="https://www.sipmann.com/zabbix-running-on-low-memory-mode.html" title="Permalink to Zabbix Running on Low Memory Mode">Zabbix Running on Low Memory Mode</a></b></h1>
<h5>
<i class="fa fa-calendar"></i><time class="w3-opacity" datetime="2020-10-20T19:00:00-03:00"> Tue 20 October 2020</time>
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<p><p>Hey folks, another Zabbix post today. This one it's about increasing the Zabbix Server Cache. It's pretty common (if you have the default settings only) get a warning about your <code>Zabbix value cache running on low memory mode</code> at your dashboard or logs.</p>
<p><img alt="Zabbix Dashboard warning about the memory problem" src="/images/zabbix_low_memory_mode.png">
<img alt="Zabbix Dashboard cache graph 70% used" src="/images/zabbix_cache_filling.png"></p>
<p>To solve, go back to your Zabbix config file (<code>zabbix_server.conf</code>) and look for the tag <em>CacheSize</em>. Uncomment it and set to a value bigger than 8M (8M it's the default value). In my case, we set a cache of 100M. After the change, restart the service.</p>
<div class="highlight"><pre><span></span><code><span class="c1">### Option: CacheSize</span>
<span class="c1"># Size of configuration cache, in bytes.</span>
<span class="c1"># Shared memory size for storing host, item and trigger data.</span>
<span class="c1">#</span>
<span class="c1"># Mandatory: no</span>
<span class="c1"># Range: 128K-64G</span>
<span class="c1"># Default:</span>
<span class="na">CacheSize</span><span class="o">=</span><span class="s">100M #uncomment this line</span>
</code></pre></div>
<p><img alt="Zabbix Dashboard resolved memory problem" src="/images/zabbix_low_memory_solved.png"></p>
<p>See ya folks.</p></p>
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<li><a href="../pt/zabbix-running-on-low-memory-mode.html">pt - Zabbix Running on Low Memory Mode</a></li>
</ul>
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