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Re: Hbase & Hive - Hadoop - [mail # user]
...On Sat, May 1, 2010 at 12:13 AM, Sonal Goyal  wrote:   http://www.datanucleus.org/products/accessplatform_2_1/hbase/support.html  DataNucleus has hbase support. If you are int...
   Author: Edward Capriolo, 2010-05-01, 04:46
Re: Hadoop does not follow my setting - Hadoop - [mail # user]
...2010/4/22 He Chen    No matter how many total mappers exist for the job only a certain number of them run at once....
   Author: Edward Capriolo, 2010-04-22, 18:17
Re: Sequential mode? - Hadoop - [mail # user]
...On Mon, Apr 19, 2010 at 12:45 PM, Tiago Veloso  wrote:   Would the Standalone Operation mode of hadoop be appropriate for this? Yes. I think so.   You can run on a local machi...
   Author: Edward Capriolo, 2010-04-19, 16:54
Re: How to get JobTracker metrics from Hadoop via JMX - Hadoop - [mail # user]
...The current stable 0.20 does not export JMX metrics for the JobTracker :(  However you can get at these stats via the JobClient. I have done this to produce graphs like the one shown be...
   Author: Edward Capriolo, 2010-04-14, 13:57
Re: How to kill orphaned hadoop job through web UI - Hadoop - [mail # user]
...On Mon, Apr 12, 2010 at 1:17 PM, Keith Wiley  wrote:   hadoop job -list  Kill it with: hadoop job -kill  ...
   Author: Edward Capriolo, 2010-04-12, 17:22
Re: Hadoop overhead - Hadoop - [mail # user]
...On Thu, Apr 8, 2010 at 10:51 AM, Patrick Angeles wrote:   All jobs make entries in a jobhistory directory on the task tracker. As of now the jobhistory directory has some limitations wi...
   Author: Edward Capriolo, 2010-04-08, 15:28
Re: Password less ssh from slave to slave - Hadoop - [mail # user]
...On Mon, Mar 8, 2010 at 8:50 AM, Massoud Mazar  wrote: Yes and No. (Mostly no) The hadoop components have their own protocol.  Password-less SSH is  used to by start-all.sh com...
   Author: Edward Capriolo, 2010-03-08, 18:34
Re: Security issue: hadoop fs shell bypass authentication? - Hadoop - [mail # user]
...The upcoming security will work with kerberos. actions like running a map reduce job will involve getting a kerberos ticket and passing it along. I have dodged kerberos for a long time and n...
   Author: Edward Capriolo, 2010-03-07, 02:46
Re: Pipelining data from map to reduce - Hadoop - [mail # user]
...I guess if you emmitted the key as task-id+ key you would have more overhead but if the data "replayed" the reducer could detect dups.  Ed  On 3/4/10, Scott Carey  wrote:...
   Author: Edward Capriolo, 2010-03-05, 01:26
Re: Will interactive password authentication fail talk between namenode-datanode/jobtracker-tasktracker? - Hadoop - [mail # user]
...On Thu, Mar 4, 2010 at 2:01 PM, Edson Ramiro  wrote: ) n knew   Adding an entry to DNS adds the entry to your forward and reverse lookup table, thus fixing/hiding the problem. Host...
   Author: Edward Capriolo, 2010-03-04, 21:23
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