이 페이지는 현재 영어 만 지원하며보고있는 언어를 준비 중입니다.
关闭
TDMQ for CKafka
- Release Notes and Announcements
- Product Introduction
- Technical Principles
- High Availability
- Purchase Guide
- Billing Overview
- Getting Started
- Obtaining Access Permission
- VPC Access
- Step 4. Send/Receive Messages
- Access via Public Domain Name
- Step 5. Send/Receive Messages
- Development Guide
- Operation Guide
- Instance Management
- Topic Management
- Instance Topic
- Elastic Topic
- Consumer Group
- Monitoring and Alarms
- Smart Ops
- Permission Management
- Migration to Cloud
- CKafka Connector
- Task Management
- Creating Data Access Task
- Creating Data Distribution Task
- Simple Data Processing
- Practical Tutorial
- Practical Tutorial of CKafka Client
- Connector Practical Tutorial
- Reporting over HTTP
- Querying Subscription to Database Change Info
- Log Access
- Troubleshooting
- Topic Failures
- Consumer Group Failures
- Client Failures
- API Documentation
- Making API Requests
- DataHub APIs
- ACL APIs
- Topic APIs
- Instance APIs
- Other APIs
- SDK Documentation
- SDK for Java
- SDK for Python
- SDK for Node.js
- SDK for Connector
- Elastic Topic Message Sending and Receiving
- General References
- Connector
- Database Change Subscription
- FAQs
Creating Instance
마지막 업데이트 시간:2025-04-14 18:05:03
Overview
This document describes how to create instances and topics in the CKafka console.
Directions
1. Log in to the CKafka console.
2. Click Instance List on the left sidebar and click Create to enter the purchase page.
3. On the instance purchase page, set the configuration information for purchase based on your actual needs.
Configuration Item | Parameter | Required or Optional | Parameter Description |
Basic Configuration | Product form | Yes | Serverful: The classic form of CKafka. Users can purchase clusters of corresponding specifications based on requirements. With the change in business volume, certain attention needs to be paid to the CKafka cluster. Serverless: A brand-new form of CKafka. The goal is to completely release the user's effort and focus more on business logic. Currently in public beta. |
| Billing Mode | Yes | Pro edition instances support two modes: Monthly Subscription and Pay-As-You-Go. Advanced Edition Instances support Monthly Subscription mode. Monthly Subscription: Payment is required in advance to use resources. It is mainly suitable for usage scenarios where the business is relatively stable and used for a long time. Pay-As-You-Go: Use resources first and then pay, mainly suitable for short-term situations with uncertain peak traffic or for testing. |
| Cluster Type | Yes | The professional edition is primarily aimed at production environment customers on a large scale. The advanced edition is mainly targeted at test environment customers in small-scale scenarios. For specific differences, refer to Product Specifications. |
| Region | Yes | Select a region with resources close to those of the client deployment. For the regions currently supported by CKafka, see Regions and Availability Zones. |
Cluster Configuration | Name | No | If not specified, the default is unnamed. When purchasing multiple instances, you can create instance suffix numbers automatically in ascending order and specify pattern string function. For specific operations, refer to Batch sequential naming or naming with specified pattern strings. |
| Series | Yes | Elastic storage: Supported only in the professional edition. In this form, billing by actual usage can be achieved, and theoretically unlimited space is available. Suitable for scenarios where consumption is followed by deletion, with small or fluctuating storage consumption. For details, refer to Elastic storage. Fixed storage: Storage is billed on a monthly subscription basis. Suitable for scenarios with message durability requirements and stable storage consumption. |
| Kafka version | Yes | Choose an appropriate Kafka version according to your business needs. See CKafka version selection suggestion. |
| Peak Bandwidth | Yes | Estimate the resource amount of peak bandwidth according to the rule of peak bandwidth of business traffic × number of replicas. CKafka will accumulate the bandwidth consumption of all replicas to calculate the actual peak bandwidth. |
| Elastic bandwidth capability | No | Once enabled, when bandwidth usage exceeds original cluster specifications, elastic space is provided. Elastic bandwidth is billed based on actual usage. For details, please see Elastic Bandwidth. This feature's allowlist is in grayscale. If you need to enable it, please Contact Us. Once enabled, it cannot be disabled. |
| Partition specification | Yes | The Partition limit for a CKafka instance is the cumulative total of number of partitions * number of replicas. The number of partitions included in the package (i.e., the minimum value) is free of charge. Additional partitions are billed in units of 100. Downgrading is not currently supported. |
| Message retention | Yes | Ranges from 24 to 2160 hours. The default message retention time is 72 hours. Messages will be deleted after exceeding the set retention duration to preserve sufficient disk space. CKafka supports automatic adjustment of disk utilization. After the disk utilization reaches the threshold, you can set the Dynamic Message Retention Policy to reduce message retention time or set the Automatic Disk Capacity Expansion to adjust disk space. For details, see Disk Water Level Processing. |
| Cross-AZ Deployment | No | The professional edition supports deployment in a maximum of 4 different availability zones, and the advanced edition supports deployment in a maximum of 2 different availability zones. For how cross-availability zone deployment works, please refer to Cross-AZ Deployment. |
Network Configuration | VPC Network | Yes | If users need to connect to other private networks, please refer to Add routing policy to modify the routing access rules. |
| Custom SSL Certificates | No | When the access method is SSL, the SSL certificate is provided by the server by default. If you need to select a custom certificate, you can enable it. For the specific applicable method, refer to Custom SSL Certificates. |
Other configuration | Tag | No | Tags are used to manage resources by category from different dimensions. For the method of use, please see Tag Management. |
| Automatic Renewal | No | After checking, when the account balance is sufficient, instances and public network bandwidth will be auto-renewed monthly after expiration. |
4. When the mouse is placed in the configuration costs in the bottom-right corner, you can view the billing item details.
5. Confirm the fee and then click Buy Now. Wait for 3 - 5 minutes to complete instance creation.
Health Status Description
CKafka has an inspection program for each instance. The inspection program checks the number of connections, disk usage percentage, production peak bandwidth, and consumption peak bandwidth of the instance. When these metrics exceed certain thresholds, different health statuses will be generated. The note is as follows:
Metric | Threshold (N) | Status Description |
Number of connections (default maximum value 5,000) | N ≤ 80% | Healthy |
| 80% < N ≤ 95% | Alarm |
| N > 95% | Abnormal |
Disk usage percentage | N ≤ 80% | Healthy |
| 80% < N ≤ 95% | Alarm |
| N > 95% | Abnormal |
Production peak bandwidth (excluding replica bandwidth) | N ≤ 80% | Healthy |
| 80% < N ≤ 100% | Alarm |
| N > 100% | Abnormal |
Consumption peak bandwidth | N ≤ 80% | Healthy |
| 80% < N ≤ 100% | Alarm |
| N > 100% | Abnormal |
Note：
The default maximum number of connections is 5000. Threshold judgment is based on the percentage of the maximum value. Exceeding the maximum number of connections for an instance will cause the client to be unable to create new connections. If you consider this maximum value unreasonable in actual business, you can contact us to apply for an increase.