EventStoreDB Ideas Portal

Ideas for improvements and new features in EventStoreDB, client libraries, and database extensions.

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Performance

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Chained replicas

Current implementation of read-only replicas require them to be connected to the cluster. It means that every new replica adds some overhead to the operational cluster nodes, particularly its leader. It creates limitation of the feature as one mig...
Alexey Zimarev about 2 months ago in EventStoreDB / Performance / Stability 0

Read only replicas with single-node databases

Consider allowing read only replicas to connect to single node deployments. Currently, this is not possible because replication is disabled on single node databases.
Faheem Muhammad Ramjaun 4 months ago in EventStoreDB / Operations / Performance 0

Projections next-gen

Move custom and standard projections to Connectors.
Alexey Zimarev 9 months ago in EventStoreDB / Performance / Stability 0 Planned

Persistent subscriptions next-gen

Seems like persistent subscriptions aim to solve two problems: Server-side checkpointing for use cases when events are being forwarded to a place that doesn't have the ability to store checkpoints (message brokers), or users just don't want to dea...
Alexey Zimarev 9 months ago in EventStoreDB / Dev experience / Performance / Stability 0

Chunk format optimised for reading

The idea is to rewrite the chunk file after it stops accepting writes, so it can handle reads better. Re-sort events in closed chunks to group events of the same stream together for efficient IOPS use. Could also save having to repeat the stream n...
Tim Coleman 10 months ago in EventStoreDB / Performance 0

Tiered Storage and Archive

Introduction In today's data-driven world, the storage and management of events play a crucial role in various industries. However, storing all events indefinitely can be both space-intensive and costly. To address this challenge, we propose the i...
Alexey Zimarev 10 months ago in EventStoreDB / Operations / Performance 0

Configurable write guarantees

Allow clients to control write guarantees. Right now, ESDB confirms the write when the leader has flushed data to disk, and the majority has the data in memory. Possible additional options: All followers have data in memory so they can do consiste...
Alexey Zimarev 10 months ago in EventStoreDB / Performance 0