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Handling deleted events in subscription to $all

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难度
4/5
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3-5 天
新手友好度
35/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
停滞
技术栈
csharp
领域
backend

调研方向

The issue points to the $all subscription and the scavenge filter in Event Store Replicator; it does not name files or tests. Read the subscription implementation and how the existing filter keeps stream metadata, then check how metadata updates and reads are handled. Done means an opt-in filter skips deleted events from deleted or truncated streams, disabled by default.

由索引模型根据 Issue 内容生成。

描述

eventstore hold subscriptions

When subscribing to $all in ESDB, the subscription will receive deleted events from deleted or truncated streams. That's a known issue and it won't be fixed until log v3 is fully released.

Event Store Replicator has the scavenge filter, which maintains the stream metadata cache. It would be a good addition here as well, should be opt-in (disabled by default) as it creates some burden for the application (memory for the cache, additional subscription to receive metadata updates, metadata reads, etc).

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  • 阅读贡献指南

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