Distributed Message Service for Kafka
Distributed Message Service for Kafka
- What's New
- Function Overview
- Product Bulletin
-
Service Overview
- What Is DMS for Kafka?
- Product Advantages
- Application Scenarios
- Kafka Instance Specifications
- Comparing Single-node and Cluster Kafka Instances
- Comparing Kafka, RabbitMQ, and RocketMQ
- Comparing DMS for Kafka and Open-Source Kafka
- Notes and Constraints
- Related Services
- Basic Concepts
- Permissions
- Billing
- Billing
- Getting Started
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User Guide
- Process of Using Kafka
- Permissions Management
- Buying a Kafka Instance
- Configuring Topics
- Connecting to an Instance
- Managing Messages
- Managing Consumer Groups
- Managing Quotas
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Managing Instances
- Viewing and Modifying Basic Information of a Kafka Instance
- Viewing Kafka Disk Usage
- Viewing Kafka Background Tasks
- Viewing Sample Code of Kafka Production and Consumption
- Modifying Kafka Instance Configuration Parameters
- Configuring Kafka Instance Tags
- Exporting the Kafka Instance List
- Restarting a Kafka Instance
- Deleting Kafka Instances
- Using Kafka Manager
- Modifying Instance Specifications
- Migrating Data
- Testing Instance Performance
- Applying for Increasing Kafka Quotas
- Monitoring and Alarms
- Viewing Kafka Audit Logs
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Best Practices
- Kafka Best Practices
- Improving Kafka Message Processing Efficiency
- Optimizing Consumer Polling
- Interconnecting Logstash to Kafka to Produce and Consume Messages
- Using MirrorMaker to Synchronize Data Across Clusters
- Handling Message Accumulation
- Handling Service Overload
- Handling Uneven Service Data
- Configuring Message Accumulation Monitoring
- Developer Guide
- Performance Whitepaper
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Getting Started
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APIs V2 (Recommended)
- Lifecycle Management
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Instance Management
- Resetting the Password
- Resetting Kafka Manager Password
- Restarting Kafka Manager
- Configuring Automatic Topic Creation
- Modifying the Private IP Address for Cross-VPC Access
- Querying Kafka Cluster Metadata
- Querying Consumer Group Details
- Resetting Consumer Group Offset to the Specified Position
- Querying Coordinator Details of a Kafka Instance
- Adding Partitions to a Topic for a Kafka Instance
- Reassigning Replicas of a Topic for a Kafka Instance
- Querying the Disk Usage Status of Topics
- Querying All Consumer Groups
- Querying a Specific Consumer Group
- Deleting a Consumer Group from a Kafka Instance
- Batch Deleting Consumer Groups of a Kafka Instance
- Specification Modification Management
- Topic Management
- User Management
- Message Query
- Background Task Management
- Tag Management
- Other APIs
- Permissions Policies and Supported Actions
- Out-of-Date APIs
- Appendix
- Change History
- SDK Reference
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FAQs
-
Instances
- Why Can't I Select Two AZs?
- Why Can't I View the Subnet and Security Group Information When Creating a DMS Instance?
- How Do I Select Storage Space for a Kafka Instance?
- How Do I Choose Between High I/O and Ultra-high I/O?
- Which Capacity Threshold Policy Should I Use?
- Which Kafka Versions Are Supported?
- What Is the ZooKeeper Address of a Kafka Instance?
- Are Kafka Instances in Cluster Mode?
- Can I Modify the Port for Accessing a Kafka Instance?
- How Long Are Kafka SSL Certificates Valid for?
- How Do I Synchronize Data from One Kafka Instance to Another?
- How Do I Change the SASL_SSL Setting of a Kafka Instance?
- How Do I Modify the SASL Mechanism?
- Will a Kafka Instance Be Restarted After Its Enterprise Project Is Modified?
- Are Kafka Brokers and ZooKeeper Deployed on the Same VM or on Different VMs?
- Which Cipher Suites Are Supported by Kafka?
- Can I Change Single-AZ Deployment to Multi-AZ Deployment for an Instance?
- Does DMS for Kafka Support Cross-AZ Disaster Recovery? Where Can I Check Whether an Existing Instance is Across-AZs?
- Do Kafka Instances Support Disk Encryption?
- Can I Change the VPC and Subnet After a Kafka Instance Is Created?
- Where Can I Find Kafka Streams Use Cases?
- Can I Upgrade Kafka Instances?
- How Do I Bind an EIP Again?
- Specification Modification
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Connections
- How Do I Select and Configure a Security Group?
- Can I Access a Kafka Instance Over a Public Network?
- How Many Connection Addresses Does a Kafka Instance Have by Default?
- Do Kafka Instances Support Cross-Region Access?
- Do Kafka Instances Support Cross-VPC Access?
- Do Kafka Instances Support Cross-Subnet Access?
- Does DMS for Kafka Support Authentication with Kerberos?
- Does DMS for Kafka Support Password-Free Access?
- How Do I Obtain the Public Access Address After Public Access Is Enabled?
- Does DMS for Kafka Support Authentication on Clients by the Server?
- Can I Use PEM SSL Truststore When Connecting to a Kafka Instance with SASL_SSL Enabled?
- What Are the Differences Between JKS and CRT Certificates?
- Which TLS Version Does DMS for Kafka Support?
- Is There a Limit on the Number of Client Connections to a Kafka Instance?
- How Many Connections Are Allowed from Each IP Address?
- Can I Change the Private Network Addresses of a Kafka Instance?
- Is the Same SSL Certificate Used for Different Instances?
- Why Is It Not Recommended to Use a Sarama Client for Messaging?
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Topics and Partitions
- Is There a Limit on the Number of Topics in a Kafka Instance?
- Why Is Partition Quantity Limited?
- Can I Reduce the Partition Quantity?
- Why Do I Fail to Create Topics?
- Do Kafka Instances Support Batch Importing Topics or Automatic Topic Creation?
- Why Do Deleted Topics Still Exist?
- Can I View the Disk Space Used by a Topic?
- Can I Add ACL Permissions for Topics?
- What Should I Do If Kafka Storage Space Is Used Up Because Retrieved Messages Are Not Deleted?
- How Do I Increase the Partition Quantity?
- Will a Kafka Instance Be Restarted After Its Automatic Topic Creation Setting Is Modified?
- What Can I Do If a Consumer Fails to Retrieve Messages from a Topic Due to Insufficient Permissions?
- Why Does an Instance Contain Default Topics __trace and __consumer_offsets?
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Consumer Groups
- Do I Need to Create Consumer Groups, Producers, and Consumers for Kafka Instances?
- Will a Consumer Group Without Active Consumers Be Automatically Deleted in 14 Days?
- Why Do I See a Deleted Consumer Group on Kafka Manager?
- Why Does a Deleted Consumer Group Still Exist?
- Why Can't I View Consumers When Instance Consumption Is Normal?
- Can I Delete Unnecessary Topics in a Consumer Group?
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Messages
- What Is the Maximum Size of a Message that Can be Created?
- Why Does Message Poll Often Fail During Rebalancing?
- Why Can't I Query Messages on the Console?
- What Can I Do If Kafka Messages Are Accumulated?
- Why Do Messages Still Exist After the Retention Period Elapses?
- Do Kafka Instances Support Delayed Message Delivery?
- How Do I View the Number of Accumulated Messages?
- Why Is the Message Creation Time Displayed as Year 1970?
- How Do I Modify message.max.bytes?
- Why Are Offsets Not Continuous?
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Kafka Manager
- Can I Configure a Kafka Manager Account to Be Read-Only?
- Why Can't I See Broker Information After Logging In to Kafka Manager?
- Yikes! Insufficient partition balance when creating topic : projectman_project_enterprise_project Try again.
- Can I Query the Body of a Message by Using Kafka Manager?
- Can I Change the Port of the Kafka Manager Web UI?
- Which Topic Configurations Can Be Modified on Kafka Manager?
- Why Is Information Displayed on Kafka Manager Inconsistent with Cloud Eye Monitoring Data?
- How Do I Change a Partition Leader for a Topic in Kafka Manager?
- Why Is the Version on the Console Different from That in Kafka Manager?
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Monitoring & Alarm
- Why Can't I View the Monitoring Data?
- Why Is the Monitored Number of Accumulated Messages Inconsistent with the Message Quantity Displayed on the Kafka Console?
- Why Is a Consumer Group Still on the Monitoring Page After Being Deleted?
- Why Do Metrics Fluctuate Significantly (Disk Read/Write Speed, Average Disk Read/Write Time, and CPU Usage)?
- Why Does JVM Heap Memory Usage of JVM Fluctuate Significantly?
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Instances
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Troubleshooting
- Troubleshooting Kafka Connection Exceptions
- Troubleshooting 6-Min Latency Between Message Creation and Retrieval
- Troubleshooting Message Creation Failures
- Troubleshooting Topic Deletion Failures
- Troubleshooting Failure to Log In to Kafka Manager in Windows
- Troubleshooting Error "Topic {{topic_name}} not present in metadata after 60000 ms" During Message Production or Consumption
- Videos
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Distributed Message Service for Kafka/
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Why Is the Message Creation Time Displayed as Year 1970?
Why Is the Message Creation Time Displayed as Year 1970?
Updated on 2022-09-14 GMT+08:00
The message creation time is specified by CreateTime when a producer creates messages. If this parameter is not set during message creation, the message creation time is year 1970 by default.
Parent topic: Messages
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