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Related Services

Figure 1 shows the relationship between MRS and other services.
Figure 1 Relationships with other services

Relationships with Other Services

Table 1 Relationships with other services

Service

Relationships

Reference

Virtual Private Cloud (VPC)

MRS clusters are created in the subnets of a VPC. VPCs provide a secure, isolated, and logical network environment for your MRS clusters.

Creating a VPC

Object Storage Service (OBS)

OBS stores the following user data:

  • MRS job input data, such as user programs and data files
  • MRS job output data, such as result files and log files of jobs

In MRS clusters, HDFS, Hive, MapReduce, Yarn, Spark, Flume, and Loader can import or export data from OBS.

MRS uses the parallel file system of OBS to provide services.

Configuring a Cluster with Storage and Compute Separated (Agency)

Accessing OBS Using obs (AKSK)

Accessing OBS by Mapping HDFS Addresses

Elastic Cloud Server (ECS)

MRS uses elastic cloud servers (ECSs) as cluster nodes.

Preparing an Operating Environment

Creating a Cluster

Relational Database Service (RDS)

RDS stores MRS system running data, including MRS cluster metadata and user billing information.

Managing Data Connections

Identity and Access Management (IAM)

IAM provides authentication for MRS.

Creating a User and Granting Permissions

MRS Custom Policies

Synchronizing IAM Users to MRS

Simple Message Notification (SMN)

MRS uses SMN to provide one-to-multiple message subscription and notification over a variety of protocols.

Configuring Job Notification Rules

Cloud Trace Service (CTS)

CTS provides you with operation records of MRS resource operation requests and request results for querying, auditing, and backtracking.

Table 2
Table 2 MRS operations recorded by CTS

Operation

Resource Type

Trace Name

Creating a cluster

cluster_mrs

createCluster

Deleting a cluster

cluster_mrs

deleteCluster

Expanding a cluster

cluster_mrs

scaleOutCluster

Shrinking a cluster

cluster_mrs

scaleInCluster

After you enable CTS, the system starts recording operations on cloud resources. You can view operation records of the last 7 days on the CTS management console. For details, see Cloud Trace Service > Getting Started > Querying Real-Time Traces.