thepraandClaude Opus 5.5
d1a91c40c4
The single serial DeliveryWorker is replaced by Infrastructure/Jobs: - Job rows are leased with one FindOneAndUpdate (oldest RunAt first, a two-minute lease) and a reaper returns expired leases every 30 s; - enqueueing wakes the workers, which otherwise poll every five seconds; - delivery runs eight at a time with at most two per host, so a slow or dead server holds two slots, not the queue; - a failure waits n^4 + 15 + jitter seconds (Mastodon's curve) for up to 16 attempts; a 4xx other than 408/429 is final, a 429 honours Retry-After; - RemoteInstance is a per-host circuit breaker: ten consecutive failures quarantine a host for an hour, doubling to a week, and its jobs wait without spending attempts; - a delivery is queued once per activity and inbox (unique DedupeKey), and finished jobs expire after seven days (TTL on FinishedAt). Migration _004 moves pending Delivery rows into jobs and marks them abandoned, so a rollback to the old worker cannot send them twice. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
15 lines
370 B
C#
15 lines
370 B
C#
using MongoDB.Entities;
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namespace PrivaPub.Models.Jobs
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{
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public class RemoteInstance : Entity
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{
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public string Host { get; set; }
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public int ConsecutiveFailures { get; set; }
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public DateTime? UnavailableUntil { get; set; }
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public DateTime? LastSuccessAt { get; set; }
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public DateTime? LastFailureAt { get; set; }
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public string LastError { get; set; }
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}
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}
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