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22 discussions - 73 posts

  • Hi all, sorry if I missed something obvious, but after looking at the JobClient and JobTracker code, it seems to me that there is no way for the JobClient to submit a job to the JobTracker using a ...
    Frédéric BertinFrédéric Bertin
    Aug 30, 2006 at 10:12 am
    Sep 6, 2006 at 6:29 am
  • Hi All, I am very much new to Hadoop and would like to know some details about the reliability and stability. I am developing flickr kind of an application for storing and sharing movies and would ...
    Aug 1, 2006 at 8:44 am
    Aug 15, 2006 at 4:52 pm
  • Hi, I have a cluster of 21 nodes + 1 name node. To perform "generate" on crawlDB of size 1 Billion urls with 700 million unfetched, it took more than 12 hours (most of the time was taken by Map ...
    Kalbande, ManishKalbande, Manish
    Aug 10, 2006 at 5:09 pm
    Oct 26, 2006 at 6:49 am
  • This is probably a simple question but when I run my MR job I am getting 10 splits and therefore 10 output files like part-xxxxx. Is there a way to merge those outputs into a single file using the ...
    Dennis KubesDennis Kubes
    Aug 29, 2006 at 3:02 pm
    Sep 11, 2006 at 3:21 pm
  • Hi, I am attaching a Hadoop job, there are some reporting glitches by which Map phase reaches 100% completition it again goes back to to 54%. As suggested by one of my friend i used setStatus() ...
    Siddharth ShahSiddharth Shah
    Aug 16, 2006 at 4:02 pm
    Aug 17, 2006 at 3:04 pm
  • Has anyone tried running Hadoop on the Amazon Elastic Compute Cloud yet? http://www.amazon.com/gp/browse.html?node=201590011 One way to use Hadoop on this would be to: 1. Allocate a pool of machines. ...
    Doug CuttingDoug Cutting
    Aug 25, 2006 at 10:39 pm
    Aug 26, 2006 at 12:01 am
  • Hello, We're trying to experiment with Hadoop running in a restricted java environment. Is there a way of bypassing logging entirely so that a log4j jar is not needed? Thanks, Dilma ...
    Dilma DaSilvaDilma DaSilva
    Aug 15, 2006 at 5:44 pm
    Aug 18, 2006 at 4:55 pm
  • Hi, I am running a 6 node, nutch 0.8. One of the node goes down frequently (hardware problems). If the node goes down the task tracker substitutes it and all is well in the cluster. When I try to ...
    Sanjay SinghSanjay Singh
    Aug 28, 2006 at 5:55 am
    Aug 28, 2006 at 7:55 am
  • I have been stumped on this problem for a few days now, I hope somebody here has a clue... I'm running Hadoop 0.5.0. I'm fetching records from a database via a buffering proxy server. The goal is to ...
    Mikkel Kamstrup ErlandsenMikkel Kamstrup Erlandsen
    Aug 24, 2006 at 2:01 pm
    Aug 25, 2006 at 7:07 am
  • Im using a custom Writable in a proxy server feeding records to hadoop.mapred.RecordReaders. The proxy talks hadoop rpc with the record reader. This works fine when I run with ...
    Mikkel Kamstrup ErlandsenMikkel Kamstrup Erlandsen
    Aug 18, 2006 at 8:47 am
    Aug 24, 2006 at 1:49 pm
  • Hello Hadoop, Does Hadoop requires java 5? I get a compile error when building the trunk with java 1.4. This change below will make it build again. Index: src/java/org/apache/hadoop/dfs/DFSShell.java ...
    Renaud RichardetRenaud Richardet
    Aug 9, 2006 at 11:06 pm
    Aug 22, 2006 at 9:02 pm
  • Hello all, In my understanding, mapred.tasktracker.tasks.maximum is ued to decide how many tasks should be allocated simultaneously per tasktracker. My problem is I would like to set this parameter ...
    Gian Lorenzo ThioneGian Lorenzo Thione
    Aug 9, 2006 at 1:47 pm
    Aug 10, 2006 at 5:34 pm
  • I have a task that merges a set of SequenceFiles (BytesWritable/LongWritable) into a single SequenceFile (BytesWritable/LongWritable), and the reduce phase fails with the following error: ...
    Vetle RoeimVetle Roeim
    Aug 1, 2006 at 7:20 am
    Aug 30, 2006 at 2:50 pm
  • If a task tracker is alive and continues sending heartbeat but the network falls in a state in which the job tracker is unable to contact the task tracker, the node remains on the list of clients but ...
    Gian Lorenzo ThioneGian Lorenzo Thione
    Aug 18, 2006 at 1:56 pm
    Aug 19, 2006 at 1:05 am
  • Hi, Does anybody run hadoop on solaris? Does hadoop run on solaris without any code modifications? Thanks, Alex
    Aug 18, 2006 at 4:45 pm
    Aug 18, 2006 at 4:48 pm
  • I'm trying to run a distributed indexing service where records a read from a remote database via Java rmi. If I run with mapred.job.tracker="local" everything is fine and dandy, but if I run ...
    Mikkel Kamstrup ErlandsenMikkel Kamstrup Erlandsen
    Aug 11, 2006 at 11:54 am
    Aug 18, 2006 at 7:01 am
  • Hello, I've started to do some initial test runs with Hadoop 0.4.0, Nutch 0.8 and Nutchwax 0.6+. My setup includes several rack mount servers that will be used for distributed indexing and a ...
    Adam TaylorAdam Taylor
    Aug 14, 2006 at 5:01 pm
    Aug 14, 2006 at 8:29 pm
  • Here are the steps I had to do to get the WordCount.py file working under Jython. This will save you some grief if you need to do the same thing. 1. Install Jython 2.1 with "java -cp . jython_21" ...
    Scott SimpsonScott Simpson
    Aug 30, 2006 at 9:06 pm
    Aug 30, 2006 at 9:06 pm
  • Unsubscribe
    Aug 13, 2006 at 4:20 pm
    Aug 13, 2006 at 4:20 pm
  • Release 0.5.0 of Hadoop is now available. The release may be downloaded from: http://www.apache.org/dyn/closer.cgi/lucene/hadoop/ Release notes are available at: http://tinyurl.com/pnml2 Please ...
    Doug CuttingDoug Cutting
    Aug 8, 2006 at 10:57 pm
    Aug 8, 2006 at 10:57 pm
  • I'm looking to deploy Hadoop at my University (University of Washington) this upcoming school year, but I have a few questions as to the development progress of the project. ~ Hadoop's DFS is ...
    Alden KingAlden King
    Aug 4, 2006 at 10:27 pm
    Aug 4, 2006 at 10:27 pm
  • Hi, How can I get the date and time on which a file was stored in Hadoop? Thanks Jugs
    Aug 1, 2006 at 12:29 pm
    Aug 1, 2006 at 12:29 pm
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32 users for August 2006

Doug Cutting: 13 posts Gian Lorenzo Thione: 6 posts Mikkel Kamstrup Erlandsen: 6 posts Jagadeesh: 5 posts Frédéric Bertin: 4 posts Bryan A. Pendleton: 3 posts Owen O'Malley: 3 posts Yoram Arnon: 3 posts Benjamin Reed: 2 posts Eric Baldeschwieler: 2 posts Kalbande, Manish: 2 posts Konstantin Shvachko: 2 posts Renaud Richardet: 2 posts Vetle Roeim: 2 posts Anton: 1 post Barry Kaplan: 1 post Adam Taylor: 1 post Alden King: 1 post Alexander: 1 post Dennis Kubes: 1 post
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