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Hadoop, mail # general - Hadoop Java Versions


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Allen Wittenauer 2011-06-15, 00:16
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Scott Carey 2011-06-22, 20:27
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Allen Wittenauer 2011-06-22, 20:49
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Scott Carey 2011-06-23, 02:42
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Steve Loughran 2011-06-23, 12:49
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Scott Carey 2011-06-26, 19:23
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Steve Loughran 2011-06-27, 11:38
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Ryan Rawson 2011-06-28, 00:10
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Ted Dunning 2011-06-28, 00:12
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Segel, Mike 2011-06-28, 01:54
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Ryan Rawson 2011-06-28, 02:33
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Segel, Mike 2011-06-28, 03:49
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Steve Loughran 2011-06-28, 09:59
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Michel Segel 2011-06-28, 12:27
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Arun C Murthy 2011-06-28, 17:25
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Evert Lammerts 2011-06-30, 21:31
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Evert Lammerts 2011-06-30, 21:37
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Aaron Eng 2011-06-30, 23:18
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Ted Dunning 2011-07-01, 00:16
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Todd Lipcon 2011-07-01, 00:24
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Ted Dunning 2011-07-01, 01:12
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M. C. Srivas 2011-07-01, 04:08
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Ian Holsman 2011-07-01, 04:47
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M. C. Srivas 2011-07-01, 05:06
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Re: Hadoop Java Versions
Ted Dunning 2011-07-01, 05:09
Ian,

Good point.  Srivas was responding to Todd's question, but there might be
better fora as you suggest.

We have a good one for specific questions about MapR at
http://answers.mapr.com

That doesn't, however, really provide a useful forum for questions like
Todd's which really spans both domains.  Where would you suggest for
questions that span the two subjects?

On Thu, Jun 30, 2011 at 9:47 PM, Ian Holsman <[EMAIL PROTECTED]> wrote:

> >> If MapR does something fancier, I'm sure we'd be interested to hear
> about
> >> it
> >> so we can compare the approaches.
> >>
> >> -Todd
> >>
> >>
> > MapR tracks disk responsiveness. In other words, a moving histogram of
> > IO-completion times is maintained internally, and if a disk starts
> getting
> > really slow, it is pre-emptively taken offline so it does not create long
> > tails for running jobs (and the data on the disk is re-replicated using
> > whatever re-replication policy is in place).  One of the benefits of
> > managing the disks directly instead of through ext3 / xfs / or other ...
> >
> > All these stats can be fed into Ganglia (or pushed out centrally via a
> text
> > file that can be pulled out using NFS)  if historical info about disk
> > behavior (and failures) needs to be preserved.
> >
> > - Srivas.
>
> While I am intrigued about how MapR performs internally, I don't think this
> is the forum for it.
> please keep MapR (and other vendor specific discussions) on their
> respective support forums.
>
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Scott Carey 2011-07-01, 17:22
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Abhishek Mehta 2011-07-01, 18:53
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Ted Dunning 2011-07-01, 21:38
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Ian Holsman 2011-07-03, 04:16
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Eric Baldeschwieler 2011-07-13, 14:59
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Ted Dunning 2011-07-13, 15:48
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Steve Loughran 2011-07-01, 16:12
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Ted Dunning 2011-07-01, 18:09
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Scott Carey 2011-06-28, 02:58
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Evert Lammerts 2011-06-30, 21:40