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Alternatives to start-all.sh stop-all.sh func - Hadoop - [mail # user]
...I remember when I was first setting up a hadoop cluster wondering exactly what the SSH-KEYs did and why and if they were needed. start-all.sh and stop-all.sh are good for what they do but th...
   Author: Edward Capriolo, 2010-07-16, 16:36
Re: Setting different hadoop-env.sh for DataNode, TaskTracker - Hadoop - [mail # user]
...On Tue, Jul 13, 2010 at 10:46 AM, Matt Pouttu-Clarke  wrote: de ry? ay contain confidential and privileged information of iCrossing. Any unauth orized review, use, disclosure or distrib...
   Author: Edward Capriolo, 2010-07-13, 15:27
HDFS moves and MapReduce jobs - Hadoop - [mail # user]
...This is a question I should go and test out myself but was wondering if anyone has a quick answer.  We have map/reduce jobs that produce lots of smaller files to a folder. We also have ...
   Author: Edward Capriolo, 2010-07-09, 21:43
Re: rebalancing replication help - Hadoop - [mail # user]
...On Wed, Jul 7, 2010 at 9:18 PM, Arun Ramakrishnan  wrote: ting it in the general list. taken. Please comment on what I can do better.  increase the replication factor from 2 to 3. ...
   Author: Edward Capriolo, 2010-07-08, 01:57
Re: How do I remove "Non DFS Used"? - Hadoop - [mail # user]
...On Wed, Jul 7, 2010 at 9:48 AM, Michael Segel  wrote:  I always suggest running tune2fs -m2  http://old.nabble.com/Optimal-Filesystem-(and-Settings)-for-HDFS-td23600272.html &...
   Author: Edward Capriolo, 2010-07-07, 14:02
Re: Text files vs. SequenceFiles - Hadoop - [mail # user]
...On Tue, Jul 6, 2010 at 10:56 AM, David Rosenstrauch  wro te: being g f st -real-cluster/ in t ave d . L irst  One challenge is that support for sequence files can be incomplete. Fo...
   Author: Edward Capriolo, 2010-07-06, 15:13
Re: Does hadoop need to have ZooKeeper to work? - Hadoop - [mail # user]
...On Mon, Jun 28, 2010 at 10:26 AM, Pierre ANCELOT  wrot e: t. z ly. 8567p29008567.html  Hive does not depend on Zookeeper. HBase does depend on ZooKeeper. You can chose to have hbas...
   Author: Edward Capriolo, 2010-07-06, 01:52
Re: problem with rack-awareness - Hadoop - [mail # user]
...On Fri, Jul 2, 2010 at 2:27 PM, Allen Wittenauer  wrote:  If you want a clear cut example refer to the hadoop wiki:  http://wiki.apache.org/hadoop/topology_rack_awareness_scri...
   Author: Edward Capriolo, 2010-07-02, 18:35
Re: [JIRA] (COLL-117) seeing warnings "attempt to override final parameter: dfs.data.dir" in tasktracker logs - Hadoop - [mail # user]
...On Mon, Jun 21, 2010 at 5:26 AM, Bikash Singhal  wrote:  This is a WARNING. It happens when you launch jobs using the same configuration directory as you DataNodes, TaskTrackers. W...
   Author: Edward Capriolo, 2010-06-21, 14:53
Re: real world cluster configurations - Hadoop - [mail # user]
...On Thu, Jun 17, 2010 at 7:51 PM, Corbin Hoenes  wrote:  I actually opened a ticket on this but BELIEVE IT OR NOT io.sort.factor is used by sequence files so it does belong in core....
   Author: Edward Capriolo, 2010-06-18, 02:29
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