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From rahul challapalli <challapallira...@gmail.com>
Subject Re: Refresh Table Metadata : Cache file owner
Date Wed, 23 Sep 2015 00:32:37 GMT
I agree that this is the desirable behavior. Just wanted to confirm it.

On Mon, Sep 21, 2015 at 10:10 PM, Neeraja Rentachintala <
nrentachintala@maprtech.com> wrote:

> yes, having Drill process being the owner of the metadata cache makes sense
> since the goal of the cache is to speed up planning time.
> However Drill should not leak any information the user doesn't have access
> to as a result of this.
> Specifically we need to ensure the metadata queries/queries when
> impersonation enabled return consistent results whether the cache is
> enabled or not.
>
> -Neeraja
>
>
> On Mon, Sep 21, 2015 at 10:05 PM, Jacques Nadeau <jacques@dremio.com>
> wrote:
>
> > I don't know if this is how it was specified but this makes sense to me.
> > The metadata cache is Drill's information, not the user's.
> >
> > --
> > Jacques Nadeau
> > CTO and Co-Founder, Dremio
> >
> > On Mon, Sep 21, 2015 at 9:52 PM, rahul challapalli <
> > challapallirahul@gmail.com> wrote:
> >
> > > This is with impersonation enabled.
> > >
> > > On Mon, Sep 21, 2015 at 7:39 PM, mehant baid <baid.mehant@gmail.com>
> > > wrote:
> > >
> > > > Is impersonation enabled when you perform the refresh?
> > > >
> > > > On Monday, September 21, 2015, rahul challapalli <
> > > > challapallirahul@gmail.com>
> > > > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > With the newly checked-in refresh metadata cache feature, I see
> that
> > > the
> > > > > cache file is always created as the user who started the drillbit
> > > process
> > > > > and has nothing to do with the user who has issued the "refresh
> table
> > > > > metadata" command. Can someone from the dev verify this?
> > > > >
> > > > > - Rahul
> > > > >
> > > >
> > >
> >
>

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