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Re: Feed hdfs with external data. - Hadoop - [mail # user]
...Pierre,  ... ed  You can use --config  to your bin/hadoop commands. I think it would also work if you set the HADOOP_CONF_DIR environment variable to point to this path.  ...
   Author: Hemanth Yamijala, 2010-06-23, 09:19
Re: Feed hdfs with external data. - Hadoop - [mail # user]
...Pierre,  Factory.java:590)  This exception seems very similar to the one we faced and fixed using the information here: http://bit.ly/a5zX1e. Could you give it a try ?  Thanks...
   Author: Hemanth Yamijala, 2010-06-23, 08:52
Re: Hadoop JobTracker Hanging - Hadoop - [mail # user]
...There was also https://issues.apache.org/jira/browse/MAPREDUCE-1316 whose cause hit clusters at Yahoo! very badly last year. The situation was particularly noticeable in the face of lots of ...
   Author: Hemanth Yamijala, 2010-06-22, 17:20
Re: How to set the number of map tasks? (ver 0.20.2) - Hadoop - [mail # user]
...Felix,  uce/Job.html  As documented in the mapreduce tutorial as well as the Java documentation (http://bit.ly/9HKclu), the number of map tasks is primarily determined by the numbe...
   Author: Hemanth Yamijala, 2010-06-22, 01:43
Re: AccessControlException when calling copyFromLocalFile() - Hadoop - [mail # user]
...Ted,  ion , an,  Path) ne: ne: ser  Is there a reason why access cannot be given to the user on DFS during setup, using dfs -chmod or dfs -chown ? That seems a more correct so...
   Author: Hemanth Yamijala, 2010-06-03, 01:49
Re: JNI native library loading problem in standalone mode - Hadoop - [mail # user]
...Edward,  If it's an option to copy the libraries to a fixed location on all the cluster nodes, you could do that and configure them in the library path via mapred.child.java.opts. Pleas...
   Author: Hemanth Yamijala, 2010-06-01, 03:47
Re: Tasktracker appearing from "nowhere" - Hadoop - [mail # user]
...Peter,   If m351 has Hadoop and a mapred-site.xml or hadoop-site.xml pointing to the right JobTracker, it would register itself as a TaskTracker when Hadoop starts on it. The slave file...
   Author: Hemanth Yamijala, 2010-05-28, 09:51
Re: TaskTracker and DataNodes cannot connect to master node (NoRouteToHostException) - Hadoop - [mail # user]
...Erik,  ct ct ct ct ct ct ct ct ct ct l  Can you connect to 192.168.151.1 from the host running your datanode - outside of Hadoop ? It seems like it is not reachable. Also, what pla...
   Author: Hemanth Yamijala, 2010-05-26, 02:05
Re: Active-Active Performance - Hadoop - [mail # general]
...Anthony,   When you say 'sites', do you mean two different Hadoop installations ? In general, each site is independent. So, I am unable to understand where the link comes in.   &nb...
   Author: Hemanth Yamijala, 2010-05-25, 02:19
Re: Active-Active Performance - Hadoop - [mail # general]
...Anthony,  I’m new to Hadoop and I’ve been given the task to see how we might util ise  as l. e  I would think configuring and managing such a system would get very complex - f...
   Author: Hemanth Yamijala, 2010-05-25, 02:08
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