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docs/en/Debug_In_Idea.md

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How to Debug RocketMQ in Idea

Step0: Resolve dependencies

  1. To download the Maven dependencies required for running RocketMQ, you can use the following command:mvn clean install -Dmaven.test.skip=true
  2. Ensure successful local compilation.

Step1: Start NameServer

  1. The startup class for NameServer is located in org.apache.rocketmq.namesrv.NamesrvStartup.
  2. Add environment variable ROCKETMQ_HOME=<rocketmq repository directory> in Idea-Edit Configurations.
  3. Run NameServer and if the following log output is observed, it indicates successful startup.
shell
The Name Server boot success. serializeType=JSON, address 0.0.0.0:9876

Step2: Start Broker

  1. The startup class for Broker is located inorg.apache.rocketmq.broker.BrokerStartup
  2. Create the /rocketmq/conf/broker.conf file or simply copy it from the official release package.
shell
# broker.conf

brokerClusterName = DefaultCluster
brokerName = broker-a
brokerId = 0
deleteWhen = 04
fileReservedTime = 48
brokerRole = ASYNC_MASTER
flushDiskType = ASYNC_FLUSH
namesrvAddr = 127.0.0.1:9876
  1. Add the runtime parameter -c /Users/xxx/rocketmq/conf/broker.conf and the environment variable ROCKETMQ_HOME=<rocketmq repository directory> in Idea-Edit Configurations.
  2. Run the Broker and if the following log is observed, it indicates successful startup.
shell
The broker[broker-a,192.169.1.2:10911] boot success...

Step3: Send or Consume Messages

RocketMQ startup is now complete. You can use the examples provided in /example to send and consume messages.

Additional: Start the Proxy locally.

  1. RocketMQ 5.x introduced the Proxy mode. Using the LOCAL mode eliminates the need for Step2. The startup class is located at org.apache.rocketmq.proxy.ProxyStartup.
  2. Add the environment variable ROCKETMQ_HOME=<rocketmq repository directory> in Idea-Edit Configurations.
  3. Create a new configuration file named rmq-proxy.json in the /conf/ directory.
json
{
  "rocketMQClusterName": "DefaultCluster",
  "nameSrvAddr": "127.0.0.1:9876",
  "proxyMode": "local"
}
  1. Run the Proxy, and if the following log is observed, it indicates successful startup.
shell
Sat Aug 26 15:29:33 CST 2023 rocketmq-proxy startup successfully