Using InfluxDB for real-time monitoring in Jmeter

Using InfluxDB for
real-time monitoring
in JMeter
Nicky Mardaraj
Senior Software Consultant (Test Automation)

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1. Introduction
 Overview of JMeter
 Importance of Real-Time Monitoring
2. InfluxDB
 What is InfluxDB
 Why InfluxDB
3. Benefits of Integrating InfluxDB with JMeter
4. Setting Up InfluxDB
 Step-by-Step Installation
5. Configuring JMeter to Use InfluxDB
6. Running Test and Collecting Data
 Executing JMeter Test
 Monitoring Data using influx CLI
7. Visualizing Data with Grafana
 What is Grafana
 Setting Up Grafana
 Creating Dashboards
8. DEMO
9. Best Practices
10. Conclusion

Overview of JMeter
 Introduction:
Apache JMeter is a powerful, open-source tool designed for performance and load testing of web
applications.
 Key Features:
o Simulates User Load
o Supports various Protocols
o Extensible
o User-Friendly GUI

Importance of Real-Time Monitoring
 Immediate Issue Detection
o Identify performance bottlenecks and errors as they occur.
 Rapid Response
o Allows quick troubleshooting and resolution of problems during testing.
 Continuous Feedback
o Provides ongoing insights into system performance, enabling continuous improvement.
 Proactive Performance Tuning
o Adjust and optimize system configurations based on real-time data to improve performance.
 Resource Management
o Monitor resource usage (CPU, memory, network) in real-time to ensure optimal resource allocation.
 Data-Driven Decisions
o Empower teams to make informed decisions with up-to-date performance metrics and analytics.

What is InfluxDB
 Definition:
InfluxDB is a high-performance, open-source time-series database specifically designed for handling time-
series data, including metrics and events.
 Key Features:
o Time-Series Data Storage: Optimized for fast storage and retrieval of time-stamped data.
o SQL-like Query Language: Uses InfluxQL for querying data, like SQL.
o High Availability: Designed to be scalable and available for handling large volumes of data.
o Retention Policies: Allows for automatic management of data retention.

Why InfluxDB and not any other DB
 Specialized for Time-Series Data
o Efficient Storage
o Granular Time Precision
 Performance
o High Write Throughput
o Fast Queries
 Ease of Integration
o Native Support
o Seamless Integration with Grafana
 Community and Ecosystem
o Active Community
o Extensive Documentation
 Scalability
o Horizontal Scalability
o Retention and Downsampling

 Real-Time Data Analysis
o Immediate insights into performance test results
 Enhanced Visualization
o Integration with Grafana for detailed dashboards and visualizations
 Scalability
o Efficient handling of large datasets over extended periods
 Ease of Use
o Simple setup and integration process

Setting Up Backend Listener:
o Add a "Backend Listener" to your JMeter test plan
o Configure the Backend Listener with following settings:
 InfluxDB URL: `http://<influxdb_host>:8086`
 Database: Name of your InfluxDB database
 Measurement: Name for your JMeter metrics
 Custom Tags: (Optional) Any additional tags for filtering data

Executing JMeter Test
Running JMeter Test
o Starting Your Test Plan:
 Open JMeter and load your test plan
 Ensure the Backend Listener configured for InfluxDB is active
Verifying Data Transmission
o Check JMeter Logs:
 Monitor JMeter's log file for any errors related to data transmission to InfluxDB
 Look for confirmation messages indicating successful data submission

Monitoring Data using influx CLI
 Access InfluxDB's command-line interface using `influx`.
 Verify that the data is being written to the database.
 Example query to check recent data:
SELECT * FROM jmeter_metrics ORDER BY time DESC LIMIT 5;
 Example query to view response times in the last 5 minutes:
SELECT mean("respone_time") FROM "jmeter_metrics" WHERE time > now() - 5m GROUP BY time(1s);

What is Grafana
 Introduction:
Grafana is an open-source platform for monitoring and observability. It enables the creation of customizable
and interactive dashboards
 Key Features:
o Customizable Dashboards
o Wide Range of Visualization Options
o Alerting
o Annotations
o Templating
o Panel Plugins
o Data Source Agnostic
o User Management

Setting Up Grafana
Installation Steps:
o Download and install Grafana from the official website
o Start Grafana using the command `sudo service grafana-server start`
o Access Grafana via your web browser at `http://localhost:8080`
Configuration Steps:
o Log in to Grafana with default credentials (admin/admin)
o Navigate to Configuration > Data Sources
o Click Add data source and select InfluxDB
o Enter the following details:
 URL: `http://<influxdb_host>:8086`
 Database: InfluxDB database name
 User and Password: If authentication is enabled
o Click Save & Test to ensure the connection is successful

Creating Dashboards
Dashboard Creation:
o Navigate to Create > Dashboard
o Add a new panel by clicking Add new panel
o Select InfluxDB as data source
Building Queries:
o Use the query builder to fetch data from InfluxDB
o Example query for average response time:
SELECT mean("respone_time") FROM "jmeter_metrics" WHERE $timefilter GROUP BY time($interval)
Visualization Options:
o Choose from various visualization types such as graphs, gauges, tables, and heatmaps
o Customize the appearance and layout to best represent your data

Using InfluxDB for real-time monitoring in Jmeter

 Data Retention Policies
o Configure Retention
 Query Optimization
o Efficient Queries
o Indexing
 Regular Maintenance
o Database Maintenance
o JMeter Maintenance
 Security Measures
o Secure Connections
o User Management

 Monitoring and Alerting
o Set Up Alerts
o Regular Monitoring
 Data Organization
o Tagging
o Measurement Naming
 Documentation and Training
o Comprehensive Documentation
o Team Training

Summary
o Integration Benefits
o Enhanced Monitoring
Key Takeaways
o Efficiency
o Scalability
o Actionable Insights

Using InfluxDB for real-time monitoring in Jmeter

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