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From "Josh Elser (JIRA)" <>
Subject [jira] [Commented] (PHOENIX-3175) Unnecessary UGI proxy user impersonation check
Date Sat, 10 Sep 2016 20:04:20 GMT


Josh Elser commented on PHOENIX-3175:

Oh dear, another I lost track of. On it, [~jamestaylor].

> Unnecessary UGI proxy user impersonation check
> ----------------------------------------------
>                 Key: PHOENIX-3175
>                 URL:
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 4.9.0, 4.8.1
>         Attachments: PHOENIX-3175.001.patch
> While looking at some issues reported by [~jpplayer], we found that some of the default
Hadoop proxyuser configuration properties in core-site.xml weren't working as intended.
> [~devaraj]'s keen eye noticed that PQS was doing an unnecessary UGI ProxyUser impersonation
> We can rely on the SPNEGO authentication as the barrier to use PQS, but then defer to
the impersonation check that HBase is already doing as to which PQS instances are allowed
to talk to HBase (defined by core-site.xml).

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