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Re: Lots of Different Kind of Datanode Errors - HDFS - [mail # user]
...On Jun 4, 2010, at 12:03 PM, Todd Lipcon wrote:  icated xceivers was set to 2048 instead of 4096. g. Verify that your machines aren't swapping when you're under load.  Or doing any...
   Author: Allen Wittenauer, 2010-06-04, 19:19
Re: HDFS-Fuse/virtual machine images - HDFS - [mail # user]
...On May 11, 2010, at 7:42 AM, Bastian Lorenz wrote:  I expect performance to be similar to that of glaciers moving across a cont inent.  Last I heard, FUSE-HDFS was a 60% performanc...
   Author: Allen Wittenauer, 2010-05-11, 15:14
Re: fuse-dfs again - HDFS - [mail # user]
...On May 6, 2010, at 6:31 PM, Yudong Liu wrote: rage users. Looks like  Be aware that HDFS does very poorly with small files.  It should not be tre ated like "regular storage".  ...
   Author: Allen Wittenauer, 2010-05-07, 15:14
Re: Fuse-DFS - HDFS - [mail # user]
...On May 5, 2010, at 5:37 AM, Seraph Imalia wrote: ocal: not found omake: not found oconf: not found onfigure: not found  It is kind of disappointing that the fuse code requires the gnu d...
   Author: Allen Wittenauer, 2010-05-05, 15:34
Re: Cant get HDFS to load more than 1Gig total data - HDFS - [mail # user]
...  On 1/7/10 8:34 AM, "Scott"  wrote:  This almost always means your HDFS is in safemode and/or has no live datanodes.   How is the namenode heap?  Are you out of phy...
   Author: Allen Wittenauer, 2010-01-07, 16:49
Re: Description of HDFS metrics - HDFS - [mail # dev]
...How do we see it?    On 11/30/09 4:56 PM, "Suresh Srinivas"  wrote:  ...
   Author: Allen Wittenauer, 2009-12-01, 01:02
Re: HDFS questions - HDFS - [mail # user]
...On 11/19/09 5:44 PM, "[EMAIL PROTECTED]"  wrote:  It is a user-space file system, however, the user that is running the NameNode process is considered 'root' not the UNIX level roo...
   Author: Allen Wittenauer, 2009-11-20, 18:39
[expand - 3 more] - Re: Security error running hadoop with MaxTemperature example - HDFS - [mail # user]
...  On 10/13/09 10:23 PM, "David Greer"  wrote:   So /tmp in the HDFS is not world writable.  hadoop dfs -chmod a+w /tmp should make it world writable and then your stuff s...
   Author: Allen Wittenauer, 2009-10-14, 15:22
Re: HDFS Client under Windows - HDFS - [mail # dev]
...  On 10/11/09 2:26 PM, "Tobias N. Sasse"  wrote:  Be aware that HDFS (or MR for that matter) is not wire compatible with itself across versions....
   Author: Allen Wittenauer, 2009-10-12, 15:33
Re: slow transfer rates w/ HDFS balancer - HDFS - [mail # user]
...  On 10/8/09 12:03 PM, "David Howell"  wrote:   Balancer was intended to run as a background job so that the grid isn't limping while the balance is going on.  But this i...
   Author: Allen Wittenauer, 2009-10-08, 19:06
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