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docs(ds): Update README

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ieQu1 2024-04-13 21:38:45 +02:00
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apps/emqx_durable_storage/README.md
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@ -13,7 +13,7 @@ This makes the storage disk requirements very predictable: only the number of _p
DS _backend_ is a callback module that implements `emqx_ds` behavior. DS _backend_ is a callback module that implements `emqx_ds` behavior.
EMQX repository contains the "builtin" backend, implemented in `emqx_ds_replication_layer` module, that uses RocksDB as the main storage. EMQX repository contains the "builtin" backend, implemented in `emqx_ds_replication_layer` module, that uses Raft algorithm for data replication, and RocksDB as the main storage.
Note that builtin backend introduces the concept of **site** to alleviate the problem of changing node names. Note that builtin backend introduces the concept of **site** to alleviate the problem of changing node names.
Site IDs are persistent, and they are randomly generated at the first startup of the node. Site IDs are persistent, and they are randomly generated at the first startup of the node.
@ -95,10 +95,10 @@ Consumption of messages is done in several stages:
# Limitation # Limitation
- Builtin backend currently doesn't replicate data across different sites
- There is no local cache of messages, which may result in transferring the same data multiple times - There is no local cache of messages, which may result in transferring the same data multiple times
# Documentation links # Documentation links
TBD TBD
# Usage # Usage