[Bug] RocketMQ Go client log dir

[mingzaily]

Before Creating the Bug Report

• I found a bug, not just asking a question, which should be created in GitHub Discussions.

• I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Programming Language of the Client

Go

Runtime Platform Environment

macOS 15.5

RocketMQ Version of the Client/Server

5.1.12

Run or Compiler Version

No response

Describe the Bug

The current RocketMQ Go client initializes its logging system using os.Getenv("user.home") to determine the user's home directory. In certain environments (containers, CI/CD pipelines, or specific IDE debugging sessions), this environment variable may not exist, causing the client to attempt creating a /logs folder in the system root directory, which fails due to permission issues.

Steps to Reproduce

producer, err := golang.NewProducer(&golang.Config{
	Endpoint: cfg.Endpoint,
	Credentials: &credentials.SessionCredentials{
		AccessKey:    cfg.AccessKey,
		AccessSecret: cfg.SecretKey,
	},
})
if err != nil {
	return nil, fmt.Errorf("failed to create rocketmq producer: %w", err)
}

if err := producer.Start(); err != nil {
	return nil, fmt.Errorf("failed to start producer: %w", err)
}

What Did You Expect to See?

normal log file

What Did You See Instead?

2025-06-30 15:11:29.388166 +0800 CST m=+146.273243918 write error: can't make directories for new logfile: mkdir /logs: read-only file system
2025-06-30 15:11:29.388517 +0800 CST m=+146.273595334 write error: can't make directories for new logfile: mkdir /logs: read-only file system
2025-06-30 15:11:29.388639 +0800 CST m=+146.273716834 write error: can't make directories for new logfile: mkdir /logs: read-only file system

Additional Context

No response

[rikugun]

call client.ResetLogger() first

[mingzaily]

call client.ResetLogger() first

Without setting the OS environment variable, even running reset won’t work. The current approach is to use os.Setenv(golang.CLIENT_LOG_ROOT, "../../logs") directly in the code. This doesn’t work out of the box on Mac. If the environment variable isn’t set, the default log path on Mac is /data/logs/rocketmqlogs, but there’s usually no permission to write to that directory.

[rikugun]

Referring to this example, my previous situation was the same as yours. Later, I added this and it was fine.

rmq_client.ResetLogger()