Joseph Doherty
30 lines
1.5 KiB
C#
30 lines
1.5 KiB
C#
namespace ZB.MOM.WW.ScadaBridge.AuditLog.Central;
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/// <summary>
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/// Symmetric failure twin of <see cref="AuditLogPurgedEvent"/>. Published on the
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/// actor-system EventStream by <see cref="AuditLogPurgeActor"/> whenever a purge
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/// step throws — a partition switch-out, a per-channel override DELETE, or the
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/// boundary enumeration that precedes them. A silently failing retention job is a
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/// health-surface condition, not just a log line, so this event lets the central
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/// health collector + ops dashboards observe purge failures without coupling to
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/// the actor (arch-review 04, S2).
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/// </summary>
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/// <param name="MonthBoundary">
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/// The pf_AuditLog_Month lower-bound boundary whose switch-out failed. When the
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/// failure occurs BEFORE any specific boundary is selected — i.e. the pre-purge
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/// boundary enumeration threw — this is <see cref="System.DateTime.MinValue"/> as a
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/// sentinel for "enumeration phase, no boundary in hand".
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/// </param>
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/// <param name="Error">
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/// The failure's message (<see cref="System.Exception.Message"/>). The full
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/// exception is logged at Error on the actor's logger; this carries the short form
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/// for surfacing on health/ops without leaking a full stack trace onto the stream.
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/// </param>
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/// <param name="ElapsedMilliseconds">
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/// Wall-clock time spent on the failed step before it threw, in milliseconds.
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/// </param>
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public sealed record AuditLogPurgeFailedEvent(
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DateTime MonthBoundary,
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string Error,
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long ElapsedMilliseconds);
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