Re: HBase and MapReduce data locality

2012-08-29 Thread N Keywal
Inline. Just a set of you're right :-). It's documented here: http://hbase.apache.org/book.html#regions.arch.locality On Wed, Aug 29, 2012 at 8:06 AM, Robert Dyer rd...@iastate.edu wrote: Ok but does that imply that only 1 of your compute nodes is promised to have all of the data for any given

Re: getFileBlockLocations on a newly created and closed file

2012-06-07 Thread N Keywal
. If you need to wait for more replicas, I would recommend polling after closing the file. -Todd On Thu, Jun 7, 2012 at 3:36 PM, N Keywal nkey...@gmail.com wrote: Hello, I have a hdfs behavior that I cannot explain: when creating a file in hdfs, closing it, and counting the number

Re: Hbase RegionServer stalls on initialization

2012-03-28 Thread N Keywal
It must be waiting for the master. Have you launched the master? On Wed, Mar 28, 2012 at 7:40 PM, Nabib El-Rahman nabib.elrah...@tubemogul.com wrote: Hi Guys, I'm starting up an region server and it stalls on initialization. I took a thread dump and found it hanging on this spot:

Re: Hbase RegionServer stalls on initialization

2012-03-28 Thread N Keywal
, at 10:42 AM, N Keywal wrote: It must be waiting for the master. Have you launched the master? On Wed, Mar 28, 2012 at 7:40 PM, Nabib El-Rahman nabib.elrah...@tubemogul.com wrote: Hi Guys, I'm starting up an region server and it stalls on initialization. I took a thread dump and found

Re: Error in Formatting NameNode

2012-02-11 Thread N Keywal
Hi, You should try with java 1.6. See http://hadoop.apache.org/common/docs/r0.22.0/single_node_setup.html#PreReqs You don't want to use the hadoop release 1.0? N. On Sat, Feb 11, 2012 at 11:51 AM, Manish Maheshwari mylogi...@gmail.comwrote: Hi All, I made 4-5 attempts in configuring the

Re: hadoop question using VMWARE

2011-09-28 Thread N Keywal
Hi, Yes, it will work. HBase won't see the difference, it's a pure vmware stuff. Obviously, it's not something you can do for production nor performance analysis. Cheers, N. On Wed, Sep 28, 2011 at 8:38 AM, praveenesh kumar praveen...@gmail.comwrote: Hi, Suppose I am having 10 windows

Re: hadoop question using VMWARE

2011-09-28 Thread N Keywal
not something you can do for production nor performance analysis. Can you please tell me what does it mean ? Why Can't we use this approach for production ??? Thanks On Tue, Sep 27, 2011 at 11:56 PM, N Keywal nkey...@gmail.com wrote: Hi, Yes, it will work. HBase won't see the difference, it's