<p></p>
<blockquote>
<p dir="auto"><a href="https://edgeapi.rubyonrails.org/classes/ActiveJob/DeserializationError.html" rel="nofollow">The docs for <code class="notranslate">ActiveJob:DeserializationError</code></a> suggest that the original error is available wrapped within that one, so perhaps it might be possible to discard only the jobs that raise a NotFound error during deserialization?</p>
</blockquote>
<p dir="auto">I was starting to think that it wasn't possible because there's no way to attach a condition to <code class="notranslate">on_discard</code> to inspect the contents but then I looked at how it's implemented and it comes down to <a href="https://github.com/rails/rails/blob/6b93fff8af32ef5e91f4ec3cfffb081d0553faf0/activesupport/lib/active_support/rescuable.rb#L90">https://github.com/rails/rails/blob/6b93fff8af32ef5e91f4ec3cfffb081d0553faf0/activesupport/lib/active_support/rescuable.rb#L90</a> which, if it doesn't find a handle for <code class="notranslate">exception</code> will look for one for <code class="notranslate">exception.cause</code> instead which is just what we need!</p>

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