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								<p>as always, thank you for responding!</p>
<p>i went to get some timing for my code on Ash 2.0, and when I switched back to the V3 stuff and recompiled I got a deadlock. After a few hours of narrowing down the culprit, it seems to be specifying the domain on an embedded resource. If I wipe out my _build folder and compile without the domain specified on the 2 embedded resources, things compile, but then obviously the forms that use those fail since a domain isn’t specified (even though the parent resource has a domain set!).</p>
<p>Once compile fails, I can go back to main resource, change the embedded attributes to be <code>{:array, :map}</code>, and compile works. i can then revert back to the embedded type <code>{:array, MyEmbeddedResource}</code> with a domain specified in it, and compile now works.</p>
<p>I don’t know the erlang/elixir compile process well, but I point this out because people should probably wipe out their <code>_build</code> folder before thinking things are ok!</p>
<p>happy to move triaging this to another location, discord? but i am kind dead in the water with ash 3 right now.</p>
<p>This makes no mention of the embedded resources, but they are it afaik:</p>
<pre data-code-wrap="elixir"><code class="lang-elixir">== Compilation error in file lib/my_app/scheduling/main_resource.ex ==
** (CompileError) deadlocked waiting on module MyApp.Scheduling
    (spark 2.1.16) lib/spark/dsl/extension.ex:128: Spark.Dsl.Extension.persisted!/3
    (spark 2.1.16) lib/spark/dsl/extension.ex:282: Spark.Dsl.Extension.get_opt_config/3
    (spark 2.1.16) lib/spark/dsl/extension.ex:240: Spark.Dsl.Extension.fetch_opt/4
    (spark 2.1.16) lib/spark/dsl/extension.ex:208: Spark.Dsl.Extension.get_opt/5
    (ash 3.0.0-rc.18) lib/ash/actions/helpers.ex:181: Ash.Actions.Helpers.add_actor/3
    (ash 3.0.0-rc.18) lib/ash/actions/helpers.ex:111: Ash.Actions.Helpers.set_opts/3

== Compilation error in file lib/my_app/scheduling.ex ==
** (CompileError) deadlocked waiting on struct MyApp.Scheduling.MainResource
    (elixir 1.16.2) src/elixir_fn.erl:17: anonymous fn/4 in :elixir_fn.expand/4

Compilation failed because of a deadlock between files.
The following files depended on the following modules:

  lib/my_app/scheduling/main_resource.ex =&gt; MyApp.Scheduling
            lib/my_app/scheduling.ex =&gt; MyApp.Scheduling.MainResource
</code></pre> 
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								<p>There is no need to specify a domain for embedded resources. Does omitting that resolve the issue?</p> 
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								<p>Sorry, just read further. Okay, this is a bug in ash_phoenix then. Will fix!</p> 
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								<p>Okay, so I’ve just pushed what <em>might</em> be a fix up to <code>ash_phoenix</code> main. I can see places where we weren’t threading the <code>domain</code> down to nested forms that were created. I’ve cleaned all of those up, but don’t have time to test it myself until tomorrow. If you could please try out main</p>
<p><code>{:ash_phoenix, github: "ash-proejct/ash_phoenix", override: true}</code> and see if that resolves your issue, that would be great.</p>
<p>If it does, let me know and I will cut a release first thing. If it doesn’t, please log an issue on the <code>ash_phoenix</code> GitHub repo.</p>
<p>It makes sense that the embedded resource declaring a domain would cause a circular compilation issue, but I hand’t thought of it before. I will add a compile time error tomorrow preventing the <code>domain</code> option from being present on embedded resources. The basic problem is <code>domain -&gt; resource -&gt; embedded resource -&gt; domain</code>.</p>
<p>In Ash, resources have compile time dependencies on types, and not relationships. Since <code>:embedded</code> resources are treated as types, that causes this issue.</p> 
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								<p>Fixed! Thank you so much!</p>
<p>(I had a temp fix of just defining a domain for embedded resources <img src="https://forum.elixirforum.com/images/emoji/apple/person_shrugging.png?v=15" title=":person_shrugging:" class="emoji" alt=":person_shrugging:" loading="lazy" width="20" height="20">)</p>
<p>Recompile times seem ok now. I editted a bunch rapidly to see what happens and they are back to at least feeling as long as Ash 2.</p>
<p><code>mix xref graph --format cycles</code> is basically the same as from Ash 2.0</p>
<p>Just about every (or maybe every) resource has a cycle of length 3:</p>
<pre><code>lib/my_app/domain/resource_a.ex
lib/my_app/domain.ex
lib/my_app/domain/resource_a.ex
</code></pre>
<p>Nothing can be done about that, right? Seems expected, and not sure it even matters.</p> 
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								<p>Actually, that is interesting… I think I can make that better <img src="https://forum.elixirforum.com/images/emoji/apple/slight_smile.png?v=15" title=":slight_smile:" class="emoji" alt=":slight_smile:" loading="lazy" width="20" height="20"> Will let you know.</p> 
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								<p>Actually, I’m not seeing those same cycles. Do you have things like anonymous functions in your resources that call functions defined in your domain? Would be worth looking into <img src="https://forum.elixirforum.com/images/emoji/apple/slight_smile.png?v=15" title=":slight_smile:" class="emoji" alt=":slight_smile:" loading="lazy" width="20" height="20"> Perhaps lets start a new topic for it though.</p>
<p>EDIT: <a class="mention" href="/u/lardcanoe" rel="nofollow">@lardcanoe</a> maybe try <code>mix xref graph --format cycles --label compile</code>? runtime cycles are not really a problem.</p> 
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								<p>Setting <code>domain</code> on an embedded resource is now a compile error, to prevent folks from accidentally having a confusing circular dependency.</p> 
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								<p>Reading about your experience makes me feel like the RC is pretty stable.</p>
<p>I’ve been waiting to take Ash for a proper spin for quite a while! I kicked the tires a bit when Ash v2 was newer but other projects ended up taking up all of my time.</p> 
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<img alt="" width="24" height="24" src="https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/zachdaniel/48/31980_2.png" class="avatar"> zachdaniel:</div>
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<p>mix xref graph --format cycles --label compile</p>
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<p>OH! Very cool. No cycles. Did NOT realize that tool had a distinction between runtime and compile. Thank you!</p> 
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