unkin-agent
3b416c7fb2
Timer-driven library tasks fire on every replica, so a library refresh or a database optimise runs once per pod against the same shared library. - add IScanLeaderLease with a Redis TTL implementation and a no-op default - skip timer-driven runs of the gated tasks on instances without the lease - treat an unreachable Redis as holding the lease so tasks never stop running - leave manual and API-triggered runs ungated
38 lines
1.3 KiB
C#
38 lines
1.3 KiB
C#
namespace MediaBrowser.Controller.ScheduledTasks;
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/// <summary>
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/// Configuration options for scan-leader election, which gates periodic library-mutating
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/// scheduled tasks to a single leader instance in a multi-pod deployment.
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/// </summary>
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public sealed class ScanLeaderOptions
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{
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/// <summary>
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/// Gets or sets a value indicating whether scan-leader election is enabled. When disabled,
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/// every instance runs its periodic tasks as before.
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/// </summary>
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public bool Enabled { get; set; }
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/// <summary>
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/// Gets or sets the duration in seconds for which the scan-leader lease is held before it must
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/// be renewed. A leader that stops renewing loses the lease after this duration.
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/// </summary>
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public int LeaseDurationSeconds { get; set; } = 60;
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/// <summary>
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/// Gets or sets the set of scheduled task keys whose periodic (timer-driven) execution is gated
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/// to the scan leader. Tasks not listed here run on every instance, and manual or API-triggered
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/// runs are never gated.
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/// </summary>
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public string[] GatedTaskKeys { get; set; } =
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{
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"RefreshLibrary",
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"RefreshPeople",
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"RefreshChapterImages",
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"AudioNormalization",
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"TaskExtractMediaSegments",
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"KeyframeExtraction",
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"CleanupUserDataTask",
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"OptimizeDatabaseTask"
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};
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}
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