[jira] [Resolved] (UIMA-3012) DUCC Setup difficulties running ducc_ling in single-user mode.

["Jim Challenger (JIRA)" <de...@uima.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-3012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jim Challenger resolved UIMA-3012.
----------------------------------

    Resolution: Fixed

New '-s' flag added to start_ducc that means 'single user mode'.  All this does is bypass checks to ensure ducc_ling permissions will allow identity switch, which is not needed or even useful in 'single user mode'.
                
> DUCC Setup difficulties running ducc_ling in single-user mode.
> --------------------------------------------------------------
>
>                 Key: UIMA-3012
>                 URL: https://issues.apache.org/jira/browse/UIMA-3012
>             Project: UIMA
>          Issue Type: Improvement
>          Components: DUCC
>            Reporter: Jim Challenger
>            Assignee: Jim Challenger
>             Fix For: 1.0-Ducc
>
>
> Current start-up scripting attempts to insure ducc_ling has ownership "root.ducc", the setuid bit on, and permissions 750.
> When running in single-user mode this checking creates unnecessary complications as, by definition (DUCC's definition), single-user mode means everything is run under the same credentials as the (non-root) user that starts DUCC.
> A new flag to 'start_ducc' should be added that means "permit single user mode".  This should bypass the ducc_ling checks and eliminate the need for special ducc_ling setup in single-user mode.

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