volume mounts preventing startup in container

I am able to start Cassandra in a docker container fine, but when I add a volume mount to the run command, Cassandra won’t start and hangs. I am using the official latest Apache Cassandra image (v 3.10), running Docker version 17.04.0-ce.

This starts ok:

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  • docker run -d -P --name=cassandra --net=host cassandra
    

    This hangs:

    docker run -P -v /home/joe/apache-cassandra/data:/var/lib/cassandra --name=cassandra --net=host cassandra
    

    When it hangs, the last line in the Cassandra log is:

    INFO  [main] 2017-05-29 16:16:48,567 ColumnFamilyStore.java:406 - Initializing system.IndexInfo
    

    I suspect it’s a permission problem, so here’s what the permissions look like for the host directory

    /home/joe/apache-cassandra/data:
    
    0 drwxrwx--- 1 root vboxsf 0 May 29 14:36 commitlog 
    0 drwxrwx--- 1 root vboxsf 0 May 29 14:36 data 
    0 drwxrwx--- 1 root vboxsf 0 May 29 12:14 hints 
    0 drwxrwx--- 1 root vboxsf 0 May 29 12:44 saved_caches
    

    When the container runs without the volume mount, I notice the equivalent directories within the container are owned by “cassandra” and not “vboxsf”.

    Any idea how to fix the issue?

    • Joe

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  • One Solution collect form web for “volume mounts preventing startup in container”

    To “fix” this issue, run your container with another path, such as /data-cassandra

    The problem is your /home/joe/apache-cassandra/data is mount from your vbox host. Docker can’t change owner or permission of this.

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