<p dir="auto">Currently, it's possible to overload a client node during the fetch process by requesting extreme amounts of data. In particular, this is possible to observe by repeating the problem in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="74458766" data-permission-text="Title is private" data-url="https://github.com/elastic/elasticsearch/issues/11070" data-hovercard-type="issue" data-hovercard-url="/elastic/elasticsearch/issues/11070/hovercard" href="https://github.com/elastic/elasticsearch/issues/11070">#11070</a> (e.g., fetching too many things in an aggregation).</p>
<p dir="auto">The bytes from the <code class="notranslate">_source</code> field and highlighting returned during the <code class="notranslate">FETCH</code> phase should be included in the request circuit breaker.</p>