diff --git a/docs/cloud/features/05_infrastructure/warehouses.md b/docs/cloud/features/05_infrastructure/warehouses.md index 413c4ed65fe..0519a8bb845 100644 --- a/docs/cloud/features/05_infrastructure/warehouses.md +++ b/docs/cloud/features/05_infrastructure/warehouses.md @@ -112,7 +112,7 @@ Services can be one of: - Can export data externally - **read-only** - Can only read data; it cannot write or modify data in ClickHouse - - Does not perform background merge operations, so its resources are fully dedicated to read queries + - Doesn't perform background merge operations outside of system tables, so its resources are fully dedicated to read queries - Can still export data externally (e.g., via table functions), but cannot change data inside ClickHouse - Idles without delay, unlike read-write services which may be kept awake by background merges. @@ -184,7 +184,8 @@ SETTINGS distributed_ddl_task_timeout=0 If you manually stop a service, you will need to start it up again in order for queries to be executed. - **There is currently a soft limit of 5 services per warehouse.** Contact the support team if you need more than 5 services in a single warehouse. -- **Primary services cannot have only one replica** While secondary services can have one replica, the primary service must have at least 2. +- **One replia Primary Sservice** Today, the default behavior is the secondary services can have one replica, the primary service must have at least 2. + To enable single replica primary services, please contact support. This behavior will be enabled by default in Q2 2026. - **Primary service idling** Today, the default behavior is that the primary service cannot auto-idling. It is disabled once the secondary service is created. To enable this, contact support to enable parent service idling. Parent service auto-idling will be enabled by default in Q2 2026 (existing services will have access to the feature, new services will have it enabled by default). ## Pricing {#pricing}