Download Apache ShardingSphere from GitHub,Then compile.
git clone --depth 1 https://github.com/apache/shardingsphere.git
cd shardingsphere
mvn clean install -Dmaven.javadoc.skip=true -Dcheckstyle.skip=true -Drat.skip=true -Djacoco.skip=true -DskipITs -DskipTests -Prelease
Output directory: shardingsphere-agent/shardingsphere-agent-distribution/target/apache-shardingsphere-${latest.release.version}-shardingsphere-agent-bin.tar.gz
Directory structure
Create agent directory, and unzip agent distribution package to the directory.
mkdir agent
tar -zxvf apache-shardingsphere-${latest.release.version}-shardingsphere-agent-bin.tar.gz -C agent
cd agent
tree
.
├── conf
│ ├── agent.yaml
│ └── logback.xml
├── plugins
│ ├── shardingsphere-agent-logging-base-${latest.release.version}.jar
│ ├── shardingsphere-agent-metrics-prometheus-${latest.release.version}.jar
│ ├── shardingsphere-agent-tracing-jaeger-${latest.release.version}.jar
│ ├── shardingsphere-agent-tracing-opentelemetry-${latest.release.version}.jar
│ ├── shardingsphere-agent-tracing-opentracing-${latest.release.version}.jar
│ └── shardingsphere-agent-tracing-zipkin-${latest.release.version}.jar
└── shardingsphere-agent.jar
agent.yaml is a configuration file. The plug-ins include Jaeger, opentracing, Zipkin, opentelemetry, logging and Prometheus. Remove the corresponding plug-in in ignoredpluginnames to start the plug-in.
applicationName: shardingsphere-agent
ignoredPluginNames:
- Jaeger
- OpenTracing
- Zipkin
- OpenTelemetry
- Logging
- Prometheus
plugins:
Prometheus:
host: "localhost"
port: 9090
props:
JVM_INFORMATION_COLLECTOR_ENABLED : "true"
Jaeger:
host: "localhost"
port: 5775
props:
SERVICE_NAME: "shardingsphere-agent"
JAEGER_SAMPLER_TYPE: "const"
JAEGER_SAMPLER_PARAM: "1"
Zipkin:
host: "localhost"
port: 9411
props:
SERVICE_NAME: "shardingsphere-agent"
URL_VERSION: "/api/v2/spans"
SAMPLER_TYPE: "const"
SAMPLER_PARAM: "1"
OpenTracing:
props:
OPENTRACING_TRACER_CLASS_NAME: "org.apache.skywalking.apm.toolkit.opentracing.SkywalkingTracer"
OpenTelemetry:
props:
otel.resource.attributes: "service.name=shardingsphere-agent"
otel.traces.exporter: "zipkin"
Logging:
props:
LEVEL: "INFO"
| Name | Description | Value range | Default value |
|---|---|---|---|
| JVM_INFORMATION_COLLECTOR_ENABLED | Start JVM collector | true, false | true |
| SERVICE_NAME | Tracking service name | Custom | shardingsphere-agent |
| JAEGER_SAMPLER_TYPE | Jaeger sample rate type | const, probabilistic, ratelimiting, remote | const |
| JAEGER_SAMPLER_PARAM | Jaeger sample rate parameter | const:0, 1, probabilistic:0.0 - 1.0, ratelimiting: > 0, Customize the number of acquisitions per second, remote：need to customize the remote service addres,JAEGER_SAMPLER_MANAGER_HOST_PORT | 1 (const type) |
| SAMPLER_TYPE | Zipkin sample rate type | const, counting, ratelimiting, boundary | const |
| SAMPLER_PARAM | Zipkin sampling rate parameter | const:0, 1, counting:0.01 - 1.0, ratelimiting: > 0, boundary:0.0001 - 1.0 | 1 (const type) |
| otel.resource.attributes | opentelemetry properties | String key value pair (, split) | service.name=shardingsphere-agent |
| otel.traces.exporter | Tracing expoter | zipkin, jaeger | zipkin |
| otel.traces.sampler | Opentelemetry sample rate type | always_on, always_off, traceidratio | always_on |
| otel.traces.sampler.arg | Opentelemetry sample rate parameter | traceidratio：0.0 - 1.0 | 1.0 |
Configure the absolute path of shardingsphere-agent.jar to the start.sh startup script of shardingsphere proxy.
nohup java ${JAVA_OPTS} ${JAVA_MEM_OPTS} \
-javaagent:/xxxxx/agent/shardingsphere-agent.jar \
-classpath ${CLASS_PATH} ${MAIN_CLASS} >> ${STDOUT_FILE} 2>&1 &
bin/start.sh
After normal startup, you can view the startup log of the plugin in the shardingsphere proxy log, and you can view the data at the configured address.