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https://issues.apache.org/jira/browse/HDFS-9296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14971252#comment-14971252
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Allen Wittenauer commented on HDFS-9296:
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bq. AD permits group names with space (e.g. "Domain Users").
Yes, but that doesn't mean they are POSIX compliant, which much match this
regex: [_a-z][-0-9_a-z]*\$? .
So a definite -1 on this.
> ShellBasedUnixGroupMapping should support group names with space
> ----------------------------------------------------------------
>
> Key: HDFS-9296
> URL: https://issues.apache.org/jira/browse/HDFS-9296
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
>
> In a typical configuration, group name is obtained from AD through SSSD/LDAP.
> AD permits group names with space (e.g. "Domain Users").
> Unfortunately, the present implementation of ShellBasedUnixGroupMapping
> parses the output of shell command "id -Gn", and assumes group names are
> separated by space.
> This could be achieved by using a combination of shell scripts, for example,
> bash -c 'id -G weichiu | tr " " "\n" | xargs -I % getent group "%" | cut
> -d":" -f1'
> But I am still looking for a more compact form, and potentially more
> efficient one.
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