temporalio / temporalio/temporal
Causal consistency guarantee in replication
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@yux0 is already working on this.
Since Sep 16, 2022.
enhancement
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Description
Current replication is done at shard level, and each shard replicate independently. This could result in causal inconsistency issue after failover. To address that, replication need to be aware of all cross shard events, and guarantee their order before apply events.
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