Re: Eclipse plugin

Hi All I've having some trouble in using the eclipse plugin on a windows XP machine to connect to the HDFS (hadoop 0.19.0) on a linux server - I'm getting the error:null message, although the port number etc are correct. Can this be related to the user information? I've set it to the hadoop user

Re: Could not reserve enough space for heap in JVM

I was getting similar errors too while running the mapreduce samples. I fiddled with the hadoop-env.sh (where the HEAPSIZE is specified) and the hadoop-site.xml files - and rectified it after some trial and error. But I would like to know if there is a thumb rule for this. Right now, I've a core

Re: Cannot execute the start-mapred script

will exit. What might have been happening here? Regards Arijit 2009/2/16 Arijit Mukherjee ariji...@gmail.com Hi All I'm trying to create a tiny 2-node cluster (both on linux FC7) with Hadoop 0.19.0 - previously, I was able to install and run hadoop on a single node. Now I'm trying

Cannot execute the start-mapred script

Hi All I'm trying to create a tiny 2-node cluster (both on linux FC7) with Hadoop 0.19.0 - previously, I was able to install and run hadoop on a single node. Now I'm trying it on 2 nodes - my idea was to put the name node and the job tracker on separate nodes, and initially use these two as the

Hadoop hardware specs

node be sufficient? Why would you need an external storage in a hadoop cluster? How can I find out what other projects on hadoop are using? Cheers Arijit Dr. Arijit Mukherjee Principal Member of Technical Staff, Level-II Connectiva Systems (I) Pvt. Ltd. J-2, Block GP, Sector V, Salt Lake Kolkata

RE: Hadoop hardware specs

One correction - the number 5 in the mail below is my estimation of the number of nodes we might need. Can this be too small a cluster? Arijit Dr. Arijit Mukherjee Principal Member of Technical Staff, Level-II Connectiva Systems (I) Pvt. Ltd. J-2, Block GP, Sector V, Salt Lake Kolkata 700 091

RE: Questions about Hadoop

: Wednesday, September 24, 2008 2:57 PM To: core-user@hadoop.apache.org Subject: Re: Questions about Hadoop Hi, Arijit Mukherjee wrote: Hi We've been thinking of using Hadoop for a decision making system which will analyze telecom-related data from various sources to take certain decisions

RE: Questions about Hadoop

Thanx again Enis. I'll have a look at Pig and Hive. Regards Arijit Dr. Arijit Mukherjee Principal Member of Technical Staff, Level-II Connectiva Systems (I) Pvt. Ltd. J-2, Block GP, Sector V, Salt Lake Kolkata 700 091, India Phone: +91 (0)33 23577531/32 x 107 http://www.connectivasystems.com

RE: Questions about Hadoop

That's a very good overview Paco - thanx for that. I might get back to you with more queries about cascade etc. at some time - hope you wouldn't mind. Regards Arijit Dr. Arijit Mukherjee Principal Member of Technical Staff, Level-II Connectiva Systems (I) Pvt. Ltd. J-2, Block GP, Sector V, Salt

RE: NameNode formatting issues in 1.16.4 and higher

Hi Most likely, it's due to login permissions. Have you set up ssh for accessing the nodes? This page might be helpful - http://tinyurl.com/6lz6o3 - contains detailed explanation of the steps you should follow. Hope this helps Cheers Arijit Dr. Arijit Mukherjee Principal Member of Technical

Hadoop eclipse plugin

, but thought someone here may be able to help as well. Regards Arijit Dr. Arijit Mukherjee Principal Member of Technical Staff, Level-II Connectiva Systems (I) Pvt. Ltd. J-2, Block GP, Sector V, Salt Lake Kolkata 700 091, India Phone: +91 (0)33 23577531/32 x 107 http://www.connectivasystems.com

Hadoop configuration problem

not create the Java virtual machine. Does the TaskTracker need more memory? The problem is if I increase the heap size in HADOOP_OPTS, all of the other hadoop processes start throwing the same error. Can anyone point me to the right direction please? Thanx in advance Arijit Dr. Arijit Mukherjee