- Release Notes and Announcements
- User Guide
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Resource Management
- Permission Management
- Log Collection
- Collection Overview
- Collecting Logs in Self-Built Kubernetes Cluster
- Collecting Syslog
- Collection by LogListener
- Collecting Text Log
- Uploading Log over Kafka
- Uploading Logs via Anonymous Write
- Uploading Logs via Logback Appender
- Uploading Logs via Log4j Appender
- Uploading Log via SDK
- Uploading Log via API
- Importing Data
- Tencent Cloud Service Log Access
- Metric Collection
- Log Storage
- Metric Storage
- Search and Analysis (Log Topic)
- Overview of Search and Analysis
- Syntax and Rules
- Statistical Analysis (SQL)
- Quick Analysis
- SQL Syntax
- SQL Functions
- String Function
- Date and Time Functions
- IP Geographic Function
- URL Function
- Mathematical Calculation Functions
- Mathematical Statistical Function
- General Aggregate Function
- Geospatial Function
- Binary String Function
- Estimation Function
- Type Conversion Function
- Logical Function
- Operators
- Bitwise Operation
- Regular Expression Function
- Lambda Function
- Conditional Expressions
- Array Functions
- Interval-Valued Comparison and Periodicity-Valued Comparison Functions
- JSON Functions
- Window Functions
- Sampling Analysis
- Configuring Indexes
- Reindexing
- Multi-Topic Search
- Context Search and Analysis
- Custom Redirect
- Downloading Log
- Search and Analysis (Metric Topic)
- Dashboard
- Data Processing documents
- Data Processing
- Data Processing Overview
- Creating Processing Task
- Viewing Data Processing Details
- Data Processing Functions
- Function Overview
- Key-Value Extraction Functions
- Enrichment Functions
- Flow Control
- Row Processing Functions
- Field Processing Functions
- Value Structuring Functions
- Regular Expression Processing Functions
- Time Value Processing Functions
- String Processing Functions
- Type Conversion Functions
- Logical and Mathematical Functions
- Encoding and Decoding Functions
- IP Parsing Functions
- Processing Cases
- Scheduled SQL Analysis
- SCF
- Data Processing
- Shipping and Consumption
- Monitoring Alarm
- Historical Documentation
- Practical Tutorial
- Developer Guide
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Topic Management APIs
- Log Set Management APIs
- Index APIs
- Topic Partition APIs
- Machine Group APIs
- Collection Configuration APIs
- Log APIs
- Metric APIs
- Alarm Policy APIs
- Data Processing APIs
- Kafka Protocol Consumption APIs
- CKafka Shipping Task APIs
- Kafka Data Subscription APIs
- COS Shipping Task APIs
- SCF Delivery Task APIs
- Scheduled SQL Analysis APIs
- COS Data Import Task APIs
- Data Types
- Error Codes
- FAQs
- CLS Service Level Agreement
- CLS Policy
- Contact Us
- Glossary
- Release Notes and Announcements
- User Guide
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Resource Management
- Permission Management
- Log Collection
- Collection Overview
- Collecting Logs in Self-Built Kubernetes Cluster
- Collecting Syslog
- Collection by LogListener
- Collecting Text Log
- Uploading Log over Kafka
- Uploading Logs via Anonymous Write
- Uploading Logs via Logback Appender
- Uploading Logs via Log4j Appender
- Uploading Log via SDK
- Uploading Log via API
- Importing Data
- Tencent Cloud Service Log Access
- Metric Collection
- Log Storage
- Metric Storage
- Search and Analysis (Log Topic)
- Overview of Search and Analysis
- Syntax and Rules
- Statistical Analysis (SQL)
- Quick Analysis
- SQL Syntax
- SQL Functions
- String Function
- Date and Time Functions
- IP Geographic Function
- URL Function
- Mathematical Calculation Functions
- Mathematical Statistical Function
- General Aggregate Function
- Geospatial Function
- Binary String Function
- Estimation Function
- Type Conversion Function
- Logical Function
- Operators
- Bitwise Operation
- Regular Expression Function
- Lambda Function
- Conditional Expressions
- Array Functions
- Interval-Valued Comparison and Periodicity-Valued Comparison Functions
- JSON Functions
- Window Functions
- Sampling Analysis
- Configuring Indexes
- Reindexing
- Multi-Topic Search
- Context Search and Analysis
- Custom Redirect
- Downloading Log
- Search and Analysis (Metric Topic)
- Dashboard
- Data Processing documents
- Data Processing
- Data Processing Overview
- Creating Processing Task
- Viewing Data Processing Details
- Data Processing Functions
- Function Overview
- Key-Value Extraction Functions
- Enrichment Functions
- Flow Control
- Row Processing Functions
- Field Processing Functions
- Value Structuring Functions
- Regular Expression Processing Functions
- Time Value Processing Functions
- String Processing Functions
- Type Conversion Functions
- Logical and Mathematical Functions
- Encoding and Decoding Functions
- IP Parsing Functions
- Processing Cases
- Scheduled SQL Analysis
- SCF
- Data Processing
- Shipping and Consumption
- Monitoring Alarm
- Historical Documentation
- Practical Tutorial
- Developer Guide
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Topic Management APIs
- Log Set Management APIs
- Index APIs
- Topic Partition APIs
- Machine Group APIs
- Collection Configuration APIs
- Log APIs
- Metric APIs
- Alarm Policy APIs
- Data Processing APIs
- Kafka Protocol Consumption APIs
- CKafka Shipping Task APIs
- Kafka Data Subscription APIs
- COS Shipping Task APIs
- SCF Delivery Task APIs
- Scheduled SQL Analysis APIs
- COS Data Import Task APIs
- Data Types
- Error Codes
- FAQs
- CLS Service Level Agreement
- CLS Policy
- Contact Us
- Glossary
Machine group
A machine group is a list of machines for which logs need to be collected. In machine groups, CLS manages all servers for which logs are collected using LogListener.
A machine group can contain multiple machines. When an application/service is deployed on multiple machines with the same log file path, the machines can be grouped into a machine group. In this way, you only need to configure the log data collection rule once in the console, and the rule takes effect on all the machines in the machine group in batches.
A machine group can be associated with a log topic. That is, all the logs in the machine group are reported to the same log topic. You can also associate a machine group with multiple log topics. That is, logs of different paths in a machine group are reported to different log topics.
Machine groups can be defined in two ways:
IP address: add an IP address list to a machine group. Then the machines corresponding to the IPs will be automatically added to the machine group.
Label: add labels to machines when installing LogListener. Then the machines with the labels will be automatically added to the machine group.
Examples
An e-commerce project has 6 machines and 3 services (payService, userService, and stockService). The deployment method is as follows:
payService is deployed on 2 machines, and there are 2 log file paths. userService and stockService are deployed on 4 machines, and there are 4 log file paths. Each of the log types (access_log and error_log) of each of the services needs to be reported to an independent log topic.
Machine | Service Deployed | Log File Path |
192.168.1.1 | payService | /data/log/payService/access_log.log /data/log/payService/error_log.log |
192.168.1.2 | payService | /data/log/payService/access_log.log /data/log/payService/error_log.log |
192.168.1.3 | userService,stockService | /data/log/userService/access_log.log /data/log/userService/error_log.log /data/log/stockService/access_log.log /data/log/stockService/error_log.log |
192.168.1.4 | userService,stockService | /data/log/userService/access_log.log /data/log/userService/error_log.log /data/log/stockService/access_log.log /data/log/stockService/error_log.log |
192.168.1.5 | userService,stockService | /data/log/userService/access_log.log /data/log/userService/error_log.log /data/log/stockService/access_log.log /data/log/stockService/error_log.log |
192.168.1.6 | userService,stockService | /data/log/userService/access_log.log /data/log/userService/error_log.log /data/log/stockService/access_log.log /data/log/stockService/error_log.log |
When deploying LogListener on servers, you can add a label for each machine according to the services running on the machine. See the table below.
Machine | Service Deployed | Label |
192.168.1.1 | payService | payService |
192.168.1.2 | payService | payService |
192.168.1.3 | userService,stockService | userService,stockService |
192.168.1.4 | userService,stockService | userService,stockService |
192.168.1.5 | userService,stockService | userService,stockService |
192.168.1.6 | userService,stockService | userService,stockService |
Then create 3 machine groups in the console and define them with labels payService, userService, and stockService. Then, associate the machine groups with log topics and add the corresponding collection configuration. By now, log reporting configuration is completed.
Log Topic | Associated Machine Group | Collection Path |
payService_access_log_topic | payService | /data/log/payService/access_log.log |
payService_error_log_topic | payService | /data/log/payService/error_log.log |
userService_access_log_topic | userService | /data/log/userService/access_log.log |
userService_error_log_topic | userService | /data/log/userService/error_log.log |
stockService_access_log_topic | stockService | /data/log/stockService/access_log.log |
stockService_error_log_topic | stockService | /data/log/stockService/error_log.log |
If a service needs to be expanded in the future, you only need to add the service label to the machines to be added so that the new machines can be automatically added to the corresponding machine group for log collection, significantly improving Ops and deployment efficiency.
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