Instance Architecture

Last updated:2024-01-06 17:31:28

Instance Architecture

Last updated: 2024-01-06 17:31:28

InnoDB engine
Note: 
As the database audit feature is being refactored and upgraded, it is not available for newly purchased instances during this period.
Instance Architecture
Definition
Node
Feature
Standard Edition (one source and one replica)
Each shard provides a high-availability architecture based on source/replica active-active deployment.
Two nodes: One source node and one replica node
Supports read-only replicas.
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In the 1-source-1-replica architecture, the read-only replica feature can only be used for low-load read-only tasks. Avoid high-load tasks such as large transactions, as they affect the backup tasks and availability of the replica server.
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Automatic node failover.
Default sampling granularity for monitoring: Once every 5 minutes.
Maximum backup time: 7 days.
Operation log backup time: 7 days.
Supports database audit where audit logs can be retained for 15 days and an unlimited number of rules which can be configured.
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Standard Edition (one source and two replicas)
Each shard provides a high-availability architecture based on source/replica multi-site active-active deployment.
Three nodes: One source node and two replica nodes
Finance Edition (one source and one replica)
Each shard provides a high-availability architecture based on source/replica active-active deployment.
Two nodes: One source node and one replica node
Supports other deployment schemes. To use other schemes, contact your Tencent Cloud sale rep.
Supports read-only replicas and implements intelligent load scheduling for read-only replicas.
Automatic node failover.
Default sampling granularity for monitoring: Once every 1 minute.
Maximum backup time: 3,650 days. You need to submit a ticket for application.
Operation log backup time: 60 days by default (1 year for archive storage).
Supports database audit where audit logs can be retained for 15 days.
Provides assistance for regulatory compliance.
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Finance Edition (one source and two replicas)
Each shard provides a high-availability architecture based on source/replica multi-site active-active deployment.
Three nodes: One source node and two replica nodes
TDStore engine
In the beta test phase, the TDStore engine adopts a high-availability architecture of three nodes: one source node and two replica nodes.

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Instance Architecture	Definition	Node	Feature
Standard Edition (one source and one replica)	Each shard provides a high-availability architecture based on source/replica active-active deployment.	Two nodes: One source node and one replica node	Supports read-only replicas. In the 1-source-1-replica architecture, the read-only replica feature can only be used for low-load read-only tasks. Avoid high-load tasks such as large transactions, as they affect the backup tasks and availability of the replica server. Automatic node failover. Default sampling granularity for monitoring: Once every 5 minutes. Maximum backup time: 7 days. Operation log backup time: 7 days. Supports database audit where audit logs can be retained for 15 days and an unlimited number of rules which can be configured.
	Standard Edition (one source and two replicas)	Each shard provides a high-availability architecture based on source/replica multi-site active-active deployment.		Three nodes: One source node and two replica nodes
Finance Edition (one source and one replica)	Each shard provides a high-availability architecture based on source/replica active-active deployment.	Two nodes: One source node and one replica node	Supports other deployment schemes. To use other schemes, contact your Tencent Cloud sale rep. Supports read-only replicas and implements intelligent load scheduling for read-only replicas. Automatic node failover. Default sampling granularity for monitoring: Once every 1 minute. Maximum backup time: 3,650 days. You need to submit a ticket for application. Operation log backup time: 60 days by default (1 year for archive storage). Supports database audit where audit logs can be retained for 15 days. Provides assistance for regulatory compliance.
	Finance Edition (one source and two replicas)	Each shard provides a high-availability architecture based on source/replica multi-site active-active deployment.		Three nodes: One source node and two replica nodes

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InnoDB engine

TDStore engine