<p dir="auto">On Elasticsearch 1.2.1, running the command</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="PUT /vd-rsa-2014-06-10-17/_settings
{
    &quot;index&quot; : {
        &quot;cache.filter.expire&quot; : &quot;5m&quot;
    }
}"><pre class="notranslate"><code class="notranslate">PUT /vd-rsa-2014-06-10-17/_settings
{
    "index" : {
        "cache.filter.expire" : "5m"
    }
}
</code></pre></div>
<p dir="auto">returns:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="{
   &quot;error&quot;: &quot;ElasticsearchIllegalArgumentException[Can't update non dynamic settings[[index.cache.filter.expire]] for open indices[[vd-rsa-2014-06-10-17]]]&quot;,
   &quot;status&quot;: 400
}"><pre class="notranslate"><code class="notranslate">{
   "error": "ElasticsearchIllegalArgumentException[Can't update non dynamic settings[[index.cache.filter.expire]] for open indices[[vd-rsa-2014-06-10-17]]]",
   "status": 400
}
</code></pre></div>
<p dir="auto">This should have worked, according to the documentation on the site and <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="798387" data-permission-text="Title is private" data-url="https://github.com/elastic/elasticsearch/issues/874" data-hovercard-type="issue" data-hovercard-url="/elastic/elasticsearch/issues/874/hovercard" href="https://github.com/elastic/elasticsearch/issues/874">#874</a></p>
<p dir="auto">On Elasticsearch 1.2.1, running the command</p>
<p dir="auto">PUT /vd-rsa-2014-06-10-17/_settings<br>
{<br>
"index" : {<br>
"cache.filter.expire" : "5m"<br>
}<br>
}</p>
<p dir="auto">gives mes:</p>
<p dir="auto">{<br>
"error": "ElasticsearchIllegalArgumentException[Can't update non dynamic settings[[index.cache.filter.expire]] for open indices[[vd-rsa-2014-06-10-17]]]",<br>
"status": 400<br>
}</p>
<p dir="auto">This should have worked, according to the documentation on the site and <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="798387" data-permission-text="Title is private" data-url="https://github.com/elastic/elasticsearch/issues/874" data-hovercard-type="issue" data-hovercard-url="/elastic/elasticsearch/issues/874/hovercard" href="https://github.com/elastic/elasticsearch/issues/874">#874</a></p>