On Wed, Jan 9, 2013 at 8:00 AM, Noah Watkins noah.watk...@inktank.com wrote:
Hi Jutta,
On Wed, Jan 9, 2013 at 7:11 AM, Lachfeld, Jutta
jutta.lachf...@ts.fujitsu.com wrote:
the current content of the web page
http://ceph.com/docs/master/cephfs/hadoop shows a configuration parameter
, December 13, 2012 9:33 PM
To: Gregory Farnum
Cc: Cameron Bahar; Sage Weil; Lachfeld, Jutta; ceph-devel@vger.kernel.org;
Noah
Watkins; Joe Buck
Subject: Re: Usage of CEPH FS versa HDFS for Hadoop: TeraSort benchmark
performance comparison issue
The bindings use the default Hadoop settings
Sorry for the delay; I've been out on vacation...
On Fri, Dec 14, 2012 at 6:09 AM, Lachfeld, Jutta
jutta.lachf...@ts.fujitsu.com wrote:
I do not have the full output of ceph pg dump for that specific TeraSort
run, but here is a typical output after automatically preparing CEPH for a
-
From: Noah Watkins [mailto:jayh...@cs.ucsc.edu]
Sent: Thursday, December 13, 2012 9:33 PM
To: Gregory Farnum
Cc: Cameron Bahar; Sage Weil; Lachfeld, Jutta; ceph-devel@vger.kernel.org; Noah
Watkins; Joe Buck
Subject: Re: Usage of CEPH FS versa HDFS for Hadoop: TeraSort benchmark
performance
On 12/13/2012 08:54 AM, Lachfeld, Jutta wrote:
Hi all,
Hi! Sorry to send this a bit late, it looks like the reply I authored
yesterday from my phone got eaten by vger.
I am currently doing some comparisons between CEPH FS and HDFS as a file system
for Hadoop using Hadoop's integrated
Hi all,
I am currently doing some comparisons between CEPH FS and HDFS as a file system
for Hadoop using Hadoop's integrated benchmark TeraSort. This benchmark first
generates the specified amount of data in the file system used by Hadoop, e.g.
1TB of data, and then sorts the data via the
Hi Jutta,
On Thu, 13 Dec 2012, Lachfeld, Jutta wrote:
Hi all,
I am currently doing some comparisons between CEPH FS and HDFS as a file
system for Hadoop using Hadoop's integrated benchmark TeraSort. This
benchmark first generates the specified amount of data in the file system
used by
On Thu, Dec 13, 2012 at 9:27 AM, Sage Weil s...@inktank.com wrote:
Hi Jutta,
On Thu, 13 Dec 2012, Lachfeld, Jutta wrote:
Hi all,
I am currently doing some comparisons between CEPH FS and HDFS as a file
system for Hadoop using Hadoop's integrated benchmark TeraSort. This
benchmark first
Is the chunk size tunable in A Ceph cluster. I don't mean dynamic, but even
statically configurable when a cluster is first installed?
Thanks,
Cameron
Sent from my iPhone
On Dec 13, 2012, at 9:41 AM, Gregory Farnum g...@inktank.com wrote:
On Thu, Dec 13, 2012 at 9:27 AM, Sage Weil
On Thu, Dec 13, 2012 at 12:23 PM, Cameron Bahar cba...@gmail.com wrote:
Is the chunk size tunable in A Ceph cluster. I don't mean dynamic, but even
statically configurable when a cluster is first installed?
Yeah. You can set chunk size on a per-file basis; you just can't
change it once the
The bindings use the default Hadoop settings (e.g. 64 or 128 MB
chunks) when creating new files. The chunk size can also be specified
on a per-file basis using the same interface as Hadoop. Additionally,
while Hadoop doesn't provide an interface to configuration parameters
beyond chunk size, we
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