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feat(deploy): warn-only script-compile-cost advisory on deploy

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This commit is contained in:
Joseph Doherty
2026-06-07 15:35:53 -04:00
parent b73ce75402
commit cfbf0b2a17
4 changed files with 142 additions and 2 deletions
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src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane/AdminOperations/AdminOperationsActor.cs
+24 -1
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@@ -10,6 +10,7 @@ using ZB.MOM.WW.OtOpcUa.Configuration.Entities;
using ZB.MOM.WW.OtOpcUa.Configuration.Enums;
using ZB.MOM.WW.OtOpcUa.Configuration.Validation;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
using ZB.MOM.WW.OtOpcUa.Core.Scripting;
namespace ZB.MOM.WW.OtOpcUa.ControlPlane.AdminOperations;
@@ -105,6 +106,28 @@ public sealed class AdminOperationsActor : ReceiveActor
return;
}
// Warn-only compile-cost guardrail (NEVER blocks). Each genuinely-compiled (non-passthrough)
// script costs ~1.66 MiB RSS per node to materialize via Roslyn (measured post-A0; design doc
// 2026-06-07). Passthrough "mirror" scripts compile to ~nothing, so they are excluded; distinct
// sources are counted (the compile cache keys on source, so duplicates collapse to one unit).
// This only surfaces the estimate to the operator — the DraftValidator gate above is the hard
// reject; this advisory rides in the Accepted Message so the UI can show it.
const double PerScriptMiB = 1.66;
var scriptSources = await db.Scripts.AsNoTracking().Select(s => s.SourceCode).ToListAsync();
var compiled = scriptSources
.Where(src => !PassthroughScript.TryMatch(src, out _))
.Distinct(StringComparer.Ordinal)
.Count();
string? advisory = null;
if (compiled > 0)
{
var estMiB = compiled * PerScriptMiB;
_log.Warning(
"StartDeployment: {Compiled} script(s) will compile (~{EstMiB:F0} MiB RSS per node); ensure node mem_limit covers it",
compiled, estMiB);
advisory = $"{compiled} script(s) will compile (~{estMiB:F0} MiB/node)";
}
var artifact = await ConfigComposer.SnapshotAndFlattenAsync(db);
var deploymentId = DeploymentId.NewId();
var revHash = RevisionHash.Parse(artifact.RevisionHash);
@@ -136,7 +159,7 @@ public sealed class AdminOperationsActor : ReceiveActor
StartDeploymentOutcome.Accepted,
deploymentId,
revHash,
Message: null,
Message: advisory,
msg.CorrelationId));
}
catch (Exception ex)
src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane/ZB.MOM.WW.OtOpcUa.ControlPlane.csproj
+3
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@@ -23,6 +23,9 @@
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Cluster\ZB.MOM.WW.OtOpcUa.Cluster.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Configuration\ZB.MOM.WW.OtOpcUa.Configuration.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.Abstractions\ZB.MOM.WW.OtOpcUa.Core.Abstractions.csproj"/>
<!-- Roslyn-free; gives HandleStartDeploymentAsync PassthroughScript.TryMatch to exclude
mirror scripts (which compile to ~nothing) from the deploy compile-cost advisory. -->
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.Scripting.Abstractions\ZB.MOM.WW.OtOpcUa.Core.Scripting.Abstractions.csproj"/>
</ItemGroup>
<ItemGroup>