[jira] [Updated] (HADOOP-12505) ShellBasedUnixGroupMapping should support group names with space

["Wei-Chiu Chuang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-12505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wei-Chiu Chuang updated HADOOP-12505:
-------------------------------------
    Assignee:     (was: Wei-Chiu Chuang)

> ShellBasedUnixGroupMapping should support group names with space
> ----------------------------------------------------------------
>
>                 Key: HADOOP-12505
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12505
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: 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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