polaris-java-agent

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• Introduction
• Architecture
• ConfigDescription
• User-Guide

Introduction

polaris-java-agent provides a non-invasive way for Java applications to connect with polaris for service management, and provides the following functions:

• Service registration discovery
• Dynamic routing and load balancing
• The faulty node is blown
• Service throttling

Currently, Java applications developed based on the following frameworks are supported for access:

• dubbox(version >= 2.8.4)
• dubbo(version >= 2.7.0)
• spring-cloud(version >= 2020.0.0)

This document describes how to use polaris-java-agent to access polaris service governance.

Architecture

polaris-java-agent injects interceptors into applications through Java bytecode enhancement technology to realize the docking of Polaris service governance capabilities.

ConfigDescription

polaris-java-agent provides the following configuration items, all of which can be configured through files (polaris.config) and system variables (-D parameters).

Configuration item	Meaning	Required	Default value
agent.application.namespace	namespace for the service	no	default
agent.application.name	application name, used for monitoring display	yes	no
agent.polaris.registry	Polaris server IP address	Yes	No
agent.application.healthcheck.ttl	Service check check TTL, in seconds	no	5
agent.consumer.refresh.interval	Service list refresh interval, in seconds	No	2

Guide

• dubbo2 access
• dubbox access