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Alexey Milovidov 2022-09-05 01:02:42 +03:00 committed by GitHub
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docs/en/engines/database-engines/replicated.md
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@ -21,9 +21,7 @@ One ClickHouse server can have multiple replicated databases running and updatin
- `shard_name` — Shard name. Database replicas are grouped into shards by `shard_name`. - `shard_name` — Shard name. Database replicas are grouped into shards by `shard_name`.
- `replica_name` — Replica name. Replica names must be different for all replicas of the same shard. - `replica_name` — Replica name. Replica names must be different for all replicas of the same shard.
:::warning
For [ReplicatedMergeTree](../table-engines/mergetree-family/replication.md#table_engines-replication) tables if no arguments provided, then default arguments are used: `/clickhouse/tables/{uuid}/{shard}` and `{replica}`. These can be changed in the server settings [default_replica_path](../../operations/server-configuration-parameters/settings.md#default_replica_path) and [default_replica_name](../../operations/server-configuration-parameters/settings.md#default_replica_name). Macro `{uuid}` is unfolded to table's uuid, `{shard}` and `{replica}` are unfolded to values from server config, not from database engine arguments. But in the future, it will be possible to use `shard_name` and `replica_name` of Replicated database. For [ReplicatedMergeTree](../table-engines/mergetree-family/replication.md#table_engines-replication) tables if no arguments provided, then default arguments are used: `/clickhouse/tables/{uuid}/{shard}` and `{replica}`. These can be changed in the server settings [default_replica_path](../../operations/server-configuration-parameters/settings.md#default_replica_path) and [default_replica_name](../../operations/server-configuration-parameters/settings.md#default_replica_name). Macro `{uuid}` is unfolded to table's uuid, `{shard}` and `{replica}` are unfolded to values from server config, not from database engine arguments. But in the future, it will be possible to use `shard_name` and `replica_name` of Replicated database.
:::
## Specifics and Recommendations {#specifics-and-recommendations} ## Specifics and Recommendations {#specifics-and-recommendations}