Compute
Elastic Cloud Server
Huawei Cloud Flexus
Bare Metal Server
Auto Scaling
Image Management Service
Dedicated Host
FunctionGraph
Cloud Phone Host
Huawei Cloud EulerOS
Networking
Virtual Private Cloud
Elastic IP
Elastic Load Balance
NAT Gateway
Direct Connect
Virtual Private Network
VPC Endpoint
Cloud Connect
Enterprise Router
Enterprise Switch
Global Accelerator
Management & Governance
Cloud Eye
Identity and Access Management
Cloud Trace Service
Resource Formation Service
Tag Management Service
Log Tank Service
Config
OneAccess
Resource Access Manager
Simple Message Notification
Application Performance Management
Application Operations Management
Organizations
Optimization Advisor
IAM Identity Center
Cloud Operations Center
Resource Governance Center
Migration
Server Migration Service
Object Storage Migration Service
Cloud Data Migration
Migration Center
Cloud Ecosystem
KooGallery
Partner Center
User Support
My Account
Billing Center
Cost Center
Resource Center
Enterprise Management
Service Tickets
HUAWEI CLOUD (International) FAQs
ICP Filing
Support Plans
My Credentials
Customer Operation Capabilities
Partner Support Plans
Professional Services
Analytics
MapReduce Service
Data Lake Insight
CloudTable Service
Cloud Search Service
Data Lake Visualization
Data Ingestion Service
GaussDB(DWS)
DataArts Studio
Data Lake Factory
DataArts Lake Formation
IoT
IoT Device Access
Others
Product Pricing Details
System Permissions
Console Quick Start
Common FAQs
Instructions for Associating with a HUAWEI CLOUD Partner
Message Center
Security & Compliance
Security Technologies and Applications
Web Application Firewall
Host Security Service
Cloud Firewall
SecMaster
Anti-DDoS Service
Data Encryption Workshop
Database Security Service
Cloud Bastion Host
Data Security Center
Cloud Certificate Manager
Edge Security
Managed Threat Detection
Blockchain
Blockchain Service
Web3 Node Engine Service
Media Services
Media Processing Center
Video On Demand
Live
SparkRTC
MetaStudio
Storage
Object Storage Service
Elastic Volume Service
Cloud Backup and Recovery
Storage Disaster Recovery Service
Scalable File Service Turbo
Scalable File Service
Volume Backup Service
Cloud Server Backup Service
Data Express Service
Dedicated Distributed Storage Service
Containers
Cloud Container Engine
SoftWare Repository for Container
Application Service Mesh
Ubiquitous Cloud Native Service
Cloud Container Instance
Databases
Relational Database Service
Document Database Service
Data Admin Service
Data Replication Service
GeminiDB
GaussDB
Distributed Database Middleware
Database and Application Migration UGO
TaurusDB
Middleware
Distributed Cache Service
API Gateway
Distributed Message Service for Kafka
Distributed Message Service for RabbitMQ
Distributed Message Service for RocketMQ
Cloud Service Engine
Multi-Site High Availability Service
EventGrid
Dedicated Cloud
Dedicated Computing Cluster
Business Applications
Workspace
ROMA Connect
Message & SMS
Domain Name Service
Edge Data Center Management
Meeting
AI
Face Recognition Service
Graph Engine Service
Content Moderation
Image Recognition
Optical Character Recognition
ModelArts
ImageSearch
Conversational Bot Service
Speech Interaction Service
Huawei HiLens
Video Intelligent Analysis Service
Developer Tools
SDK Developer Guide
API Request Signing Guide
Terraform
Koo Command Line Interface
Content Delivery & Edge Computing
Content Delivery Network
Intelligent EdgeFabric
CloudPond
Intelligent EdgeCloud
Solutions
SAP Cloud
High Performance Computing
Developer Services
ServiceStage
CodeArts
CodeArts PerfTest
CodeArts Req
CodeArts Pipeline
CodeArts Build
CodeArts Deploy
CodeArts Artifact
CodeArts TestPlan
CodeArts Check
CodeArts Repo
Cloud Application Engine
MacroVerse aPaaS
KooMessage
KooPhone
KooDrive

Modifying Instance Specifications

Updated on 2023-05-06 GMT+08:00

Scenario

After creating a Kafka instance, you can increase its storage space, bandwidth (only for old specifications), and broker quantity (only for new specifications).

Distinguishing between old and new specifications:

  • Old specifications: In the instance list, the instance specification is displayed as bandwidth (for example, 100 MB/s).
  • New specifications: In the instance list, the instance specification is displayed as the ECS flavor multiplied by the number of brokers (for example, c6.2u4g.cluster*4 brokers).
Figure 1 Instance list

Notes and Constraints

  • You can expand the storage space 20 times.
  • If you increase the bandwidth or add brokers, the maximum number of partitions will also be increased. When you increase the bandwidth or change the broker quantity, the storage space is proportionally expanded based on the current disk space. For example, assume that the original number of brokers of an instance is 3 and the disk size of each broker is 200 GB. If the broker quantity changes to 10 and the disk size of each broker is still 200 GB, the total disk size becomes 2000 GB.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner to select a region.

    NOTE:

    Select the region where your Kafka instance is located.

  3. Click and choose Application > Distributed Message Service for Kafka to open the console of DMS for Kafka.
  4. In the row containing the instance for which you want to modify the specifications, choose More > Modify Specifications in the Operation column.
  5. Specify the required storage space, number of brokers, or bandwidth.

    To modify old specifications, perform the following steps:
    • Increase the bandwidth.

      Specify a new bandwidth and click Next. Confirm the configurations and click Submit.

      View the new bandwidth of the instance in the Specifications column in the instance list.

      NOTE:
      • Bandwidth is increased by scaling out brokers. The original brokers and services are not affected.
      • New topics are created on new brokers. After the bandwidth is increased, the original topics are still on the original brokers. To use new brokers, migrate the topics by using Kafka Manager or create new topics.
      • If public access is enabled and EIPs are configured for the instance, configure EIPs for the new brokers when expanding the bandwidth.
    • Expand the storage space.

      Specify a new storage space and click Next. Confirm the configurations and click Submit.

      View the new storage space in the Used/Available Storage Space (GB) column in the instance list.

      NOTE:
      • Storage space expansion does not affect services.
      • Available storage space = Actual storage space – Storage space for storing logs and ZooKeeper data – Disk formatting loss

        For example, if the storage space is expanded to 700 GB, the storage space for storing logs and ZooKeeper data is 100 GB, and the disk formatting loss is 7 GB, then the available storage space after capacity expansion will be 593 GB.

    To modify new specifications, perform the following steps:

    • Expand the storage space.

      For Modify By, select Storage. For Storage Space per Broker, specify a new storage space, and click Next. Confirm the configurations and click Submit.

      View the new storage space (Storage space per broker x Number of brokers) in the Used/Available Storage Space (GB) column in the instance list.

      NOTE:
      • Storage space expansion does not affect services.
      • Available storage space = Actual storage space – Storage space for storing logs and ZooKeeper data – Disk formatting loss

        For example, if the storage space is expanded to 700 GB, the storage space for storing logs and ZooKeeper data is 100 GB, and the disk formatting loss is 7 GB, then the available storage space after capacity expansion will be 593 GB.

    • Add brokers.

      For Modify By, select Brokers. Then, enter the number of brokers and click Next. Confirm the configurations and click Submit.

      View the number of brokers in the Specifications column in the instance list.

      NOTE:
      • Adding brokers does not affect the original brokers or services.
      • New topics are created on new brokers. After the bandwidth is increased, the original topics are still on the original brokers. To use new brokers, migrate the topics by using Kafka Manager or create new topics.
      • If public access is enabled and EIPs are configured for the instance, configure EIPs for the new brokers.

We use cookies to improve our site and your experience. By continuing to browse our site you accept our cookie policy. Find out more

Feedback

Feedback

Feedback

0/500

Selected Content

Submit selected content with the feedback