Help Center/ Config/ User Guide/ Resource Compliance/ Built-In Policies/ MapReduce Service/ MRS Clusters Are Deployed Across AZs
Updated on 2025-08-25 GMT+08:00
View PDF
Share

MRS Clusters Are Deployed Across AZs

Rule Details

Table 1 Rule details

Parameter

Description

Rule Name

mrs-cluster-multiAZ-deployment

Identifier

MRS Clusters Are Deployed Across AZs

Description

If an MRS cluster is deployed in a single AZ, this cluster is non-compliant.

Tag

mrs

Trigger Type

Configuration change

Filter Type

mrs.mrs

Rule Parameters

None

Application Scenarios

An AZ is a physical location that uses independent power supply and networks. AZs in the same region can communicate with each other over an intranet. If your business requires cross-AZ DR or is not sensitive to cross-AZ latency, you are advised to deploy it across AZs.

Solution

Currently, an MRS cluster cannot be deployed across AZs. For details, see the availability_zone field in the API for creating a cluster in Creating a Cluster. Non-compliant result of this rule cannot be remediated.

Rule Logic

  • If an MRS cluster is deployed in a single AZ, this cluster is non-compliant.
  • If an MRS cluster is deployed in at least two AZs, this cluster is compliant.
Parent topic: MapReduce Service