kvrocks does not start when customised kvrocks.conf is used

[alija83]

Search before asking

• I had searched in the issues and found no similar issues.

Version

Docker Compose version v2.15.1
kvrocks version 2.8.0.

Minimal reproduce step

when using the following docker-compose configs

  kvrocks:
    image: apache/kvrocks:latest
    ports:
      - "6366:6366"
    volumes:
      - ./kvrocks/conf/kvrocks.conf:/etc/kvrocks/conf/kvrocks.conf
    entrypoint: ["kvrocks", "-c", "/etc/kvrocks/conf/kvrocks.conf"]

and the kvrocks.conf file:

dir /tmp/kvrocks

# General
#daemonize yes
port 6366
bind 0.0.0.0

What did you expect to see?

I expected the service to start...normally and I am able to connect with redis-cli -p 6366

What did you see instead?

⠿ Container microservices-kvrocks-1 Created 0.0s
Attaching to microservices-kvrocks-1
microservices-kvrocks-1 | E20240614 15:41:22.642987 1 main.cc:180] Failed to start server: rename file encounter error: Resource busy

Anything Else?

A quick solution is to mount the directory which contains the configuration file as follows:

    volumes:
      - ./kvrocks/conf:/etc/kvrocks/conf

Are you willing to submit a PR?

• I'm willing to submit a PR!

[git-hulk]

@alija83 Thanks for your report. This issue should involve two problems:

• No need to rewrite the configuration file while starting in most scenarios. And it has been fixed in fix(config): avoid rewriting the config file if it's unnecessary #2347
• Must mount a writable volume if you would like to rewrite the config. And what you do is correct, another workaround is to mount the /var/lib/kvrocks volume, please refer to: https://github.com/apache/kvrocks/blob/unstable/Dockerfile#L35

[git-hulk]

@alija83 Feel free to reopen if you have any further questions.