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https://issues.apache.org/jira/browse/HADOOP-12576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010627#comment-15010627
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Kai Sasaki commented on HADOOP-12576:
-------------------------------------
[~wheat9]
Thank you for comment. Docker daemon always run as root user because it uses
Unix socket. So it requires us to use sudo when we use docker command. There is
a way to avoid this to create docker unix group and add user as describe below
document.
http://docs.docker.com/engine/installation/ubuntulinux/#giving-non-root-access
But I think it is useful to build with sudo in such case when we only want to
build hadoop source code.
> Same owner of maven repository on Docker container to build user
> ----------------------------------------------------------------
>
> Key: HADOOP-12576
> URL: https://issues.apache.org/jira/browse/HADOOP-12576
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Kai Sasaki
> Assignee: Kai Sasaki
> Priority: Trivial
> Labels: docker
> Attachments: HADOOP-12576.01.patch
>
>
> When local maven repository has not yet created, docker container launched by
> {{start-build-env.sh}} create it owned by launching user. {{docker}} command
> ofter be run by root user unless manipulating docker unix groups.
> In that case, maven local repository is created by root user and building
> process inside container fails.
> It is better to make sure to create maven local repository by just the user
> who trying to build before launching docker container if not exist maven
> local repository.
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