Home | About | Sematext search-lucene.com search-hadoop.com
clear query|facets|time Search criteria: .   Results from 1 to 10 from 198 (0.116s).
Loading phrases to help you
refine your search...
Re: log - MapReduce - [mail # user]
...This basically happens while running a mapreduce job. When a map reduce job is triggered the job files are put in hdfs with high replication ( replication is controlled by  - 'mapred.su...
   Author: Bejoy Ks, 2013-04-19, 09:21
Re: Physically moving HDFS cluster to new - MapReduce - [mail # user]
...Adding on to the comments  You might need to update the etc-hosts with new values. If the host name changes as well, you may need to update the  fs.default.name and mapred.job.trac...
   Author: Bejoy Ks, 2013-04-18, 05:27
Re: Adjusting tasktracker heap size? - MapReduce - [mail # user]
...Hi Marcos,  You need to consider the slots based on the available memory  Available Memory = Total RAM - (Memory for OS + Memory for Hadoop Daemons like DN,TT + Memory for other se...
   Author: Bejoy Ks, 2013-04-17, 12:23
Re: How to improve performance of this cluster - MapReduce - [mail # user]
...Hi Geelong  Let me just put in my thoughts here  You have 8G of RAM. But you have 8+8 = 16 slots with task jvm size of 1G. This means if all slots are utilized simultaneously then ...
   Author: Bejoy Ks, 2013-04-17, 10:39
Re: How to change secondary namenode location in Hadoop 1.0.4? - MapReduce - [mail # user]
...Hi Henry  You can change the secondary name node storage location by overriding the property 'fs.checkpoint.dir' in your core-site.xml   On Wed, Apr 17, 2013 at 2:35 PM, Henry Hung...
   Author: Bejoy Ks, 2013-04-17, 10:09
Re: Why the cluster stays at State: INITIALIZING - HDFS - [mail # user]
...If there is some critical writes to be done, you can force the cluster out of safe mode.  hadoop dfsadmin -safemode leave  Considering your ratio of reported blocks and if you have...
   Author: Bejoy Ks, 2013-04-17, 04:12
[expand - 1 more] - Re: VM reuse! - HDFS - [mail # user]
...When you process larger data volumes, this is the case mostly. :)   Say you have a job with smaller input size and if you have  2 blocks on a single node and then the JT may schedu...
   Author: Bejoy Ks, 2013-04-16, 14:44
Re: HW infrastructure for Hadoop - MapReduce - [mail # user]
...+1 for "Hadoop Operations"   On Tue, Apr 16, 2013 at 3:57 PM, MARCOS MEDRADO RUBINELLI  wrote:  ...
   Author: Bejoy Ks, 2013-04-16, 11:20
Re: Submitting mapreduce and nothing happens - MapReduce - [mail # user]
...Hi Amit  Are you seeing any errors or warnings on JT logs?  Regards Bejoy KS...
   Author: Bejoy Ks, 2013-04-16, 07:30
Re: Unexpected Hadoop behavior: map task re-running after reducer has been running - Hadoop - [mail # user]
...Hi David  The issue with the maps getting re triggered is because one of the node where map outputs are stored are getting lost during reduce phase. As a result of this the map outputs ...
   Author: Bejoy Ks, 2013-03-11, 13:16
Hive (94)
MapReduce (51)
Hadoop (40)
HDFS (12)
Pig (1)
mail # user (198)
last 7 days (0)
last 30 days (0)
last 90 days (0)
last 6 months (0)
last 9 months (198)
Ted Yu (1644)
Harsh J (1293)
Jun Rao (1031)
Todd Lipcon (1002)
Stack (973)
Jonathan Ellis (842)
Andrew Purtell (797)
Jean-Daniel Cryans (755)
jacques@... (738)
stack (716)
Yusaku Sako (708)
Jarek Jarcec Cecho (698)
Eric Newton (696)
Jonathan Hsieh (675)
Roman Shaposhnik (658)
Brock Noland (657)
Namit Jain (649)
Neha Narkhede (647)
Hitesh Shah (626)
Owen O'Malley (625)
Steve Loughran (616)
Siddharth Seth (614)
Josh Elser (563)
Eli Collins (545)
Arun C Murthy (543)
Bejoy Ks