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HDFS >> mail # dev >> VOTE: HDFS-347 merge


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Re: VOTE: HDFS-347 merge
Hi Azuryy,

The branch adds new APT documentation which describes the new configuration
that is needed.
It's
in ./hadoop-hdfs-project/hadoop-hdfs/src/site/apt/ShortCircuitLocalReads.apt.vm

best,
Colin
On Thu, Apr 11, 2013 at 6:37 PM, Azuryy Yu <[EMAIL PROTECTED]> wrote:

> It's good to know HDFS-347 win the votes finally.
>
> Does there need some additional configuration to enable these features?
>
>
>
> On Fri, Apr 12, 2013 at 2:05 AM, Colin McCabe <[EMAIL PROTECTED]
> >wrote:
>
> > The merge vote is now closed.  With three +1s, it passes.
> >
> > thanks,
> > Colin
> >
> >
> > On Wed, Apr 10, 2013 at 10:00 PM, Aaron T. Myers <[EMAIL PROTECTED]>
> wrote:
> >
> > > I'm +1 as well. I've reviewed much of the code as well and have
> > personally
> > > seen it running in production at several different sites. I agree with
> > Todd
> > > that it's a substantial improvement in operability.
> > >
> > > Best,
> > > Aaron
> > >
> > > On Apr 8, 2013, at 1:19 PM, Todd Lipcon <[EMAIL PROTECTED]> wrote:
> > >
> > > > +1 for the branch merge. I've reviewed all of the code in the branch,
> > and
> > > > we have people now running this code in production scenarios. It is
> as
> > > > functional as the old version and way easier to set up/configure.
> > > >
> > > > -Todd
> > > >
> > > > On Mon, Apr 1, 2013 at 4:32 PM, Colin McCabe <[EMAIL PROTECTED]
> >
> > > wrote:
> > > >
> > > >> Hi all,
> > > >>
> > > >> I think it's time to merge the HDFS-347 branch back to trunk.  It's
> > been
> > > >> under
> > > >> review and testing for several months, and provides both a
> performance
> > > >> advantage, and the ability to use short-circuit local reads without
> > > >> compromising system security.
> > > >>
> > > >> Previously, we tried to merge this and the objection was brought up
> > > that we
> > > >> should keep the old, insecure short-circuit local reads around so
> that
> > > >> platforms for which secure SCR had not yet been implemented could
> use
> > it
> > > >> (e.g. Windows).  This has been addressed-- see HDFS-4538 for
> details.
> > > >> Suresh has also volunteered to maintain the insecure SCR code until
> > > secure
> > > >> SCR can be implemented for Windows.
> > > >>
> > > >> Please cast your vote by EOD Monday 4/8.
> > > >>
> > > >> best,
> > > >> Colin
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > Todd Lipcon
> > > > Software Engineer, Cloudera
> > >
> >
>