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MapReduce >> mail # user >> Can I move block data directly?


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Azuryy Yu 2013-07-08, 03:40
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Harsh J 2013-07-08, 05:39
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Viral Bajaria 2013-07-08, 05:46
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Harsh J 2013-07-08, 06:47
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Azuryy Yu 2013-07-08, 06:07
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Azuryy Yu 2013-07-08, 06:16
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Harsh J 2013-07-08, 07:10
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Re: Can I move block data directly?
Yeah. I got it. Thanks Harsh.
On Mon, Jul 8, 2013 at 3:10 PM, Harsh J <[EMAIL PROTECTED]> wrote:

> Yeah you're right. I only meant the ownership of the blk_* files to be
> owned by the same user as the DN daemon, for consistency more than
> anything else.
>
> On Mon, Jul 8, 2013 at 11:46 AM, Azuryy Yu <[EMAIL PROTECTED]> wrote:
> > bq. I'd also ensure the ownership of the block files are intact.
> > Hi Harsh,
> >
> > what's mean "ensure the ownership of the block files are intact"?
> >
> > and I want to ask more.
> >
> > for my understand, after I restart the data node daemon, block report
> should
> > tell NN all blocks owned by this DN, and block scnaner can remember all
> > blocks' structure on local, so the block file owner ship would be
> confirmed
> > at the starting period
> >
> > and even if some pieces of blk_ files losts, then NN an find it's under
> > replicated, am I right?  Thanks.
> >
> >
> >
> >
> > On Mon, Jul 8, 2013 at 2:07 PM, Azuryy Yu <[EMAIL PROTECTED]> wrote:
> >>
> >> Thanks Harsh, always detailed answers each time.
> >>
> >> Yes, this is an unsupported scenarios, Load balancer is very slow even
> >> after I set bandwidthPerSec  to a large value, so I want to take this
> way to
> >> slove the problem quickly.
> >>
> >>
> >>
> >>
> >>
> >>
> >> On Mon, Jul 8, 2013 at 1:46 PM, Viral Bajaria <[EMAIL PROTECTED]>
> >> wrote:
> >>>
> >>> Out of curiosity. Besides the bandwidthPerSec and threshold what other
> >>> parameters are tuneable ?
> >>>
> >>> Thanks,
> >>> Viral
> >>>
> >>> On Sun, Jul 7, 2013 at 10:39 PM, Harsh J <[EMAIL PROTECTED]> wrote:
> >>>>
> >>>> If balancer isn't cutting it out for you with stock defaults, you
> >>>> should consider tuning that than doing these unsupported scenarios.
> >>>
> >>>
> >>>
> >>
> >
>
>
>
> --
> Harsh J
>
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kishore alajangi 2013-07-08, 04:18
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Azuryy Yu 2013-07-08, 04:28