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42 discussions - 137 posts

  • We should have created bylaws when we were established as a PMC back in Jan 2008, but it has become clear that we need to define them. I looked around and the Ant project had bylaws that were both ...
    Owen O'MalleyOwen O'Malley
    Nov 2, 2009 at 7:52 pm
    Jul 14, 2010 at 5:55 pm
  • Trying to start a Hadoop cluster on EC2. (Yes, Cloudera's distribution works well, but trying to do this myself so I can learn what's happening behind the scene.) I have a Master & a Slave. When I ...
    Something SomethingSomething Something
    Nov 22, 2009 at 12:58 am
    Nov 30, 2009 at 4:07 pm
  • Hi, I know Hadoop is a suite of software service for the cluster computing, including mapreduce implementation, distributed database, distributed file system, etc. the confusion to me is If ...
    TomTom
    Nov 29, 2009 at 3:56 am
    Dec 4, 2009 at 1:21 am
  • Given that Hadoop is the dominant project at the ASF for cloud-oriented Java applications, I'd like to introduce a new project in the open source world named Cloud MapReduce. Below are the pertinent ...
    Bruce SnyderBruce Snyder
    Nov 27, 2009 at 5:42 pm
    Dec 3, 2009 at 7:29 pm
  • Hi everyone, I have a need to sort the output of map on 2 keys (key1, key2) - first on key1, then on key2. Example: key1 key2 values ------------------------- 0001 0001 values... 0001 0002 values... ...
    Rajiv MaheshwariRajiv Maheshwari
    Nov 16, 2009 at 5:13 pm
    Nov 17, 2009 at 11:29 am
  • Hi, I have installed hadoop and configured capacity scheduler with three queues and run three jobs simultaneously,but i found that the jobs are scheduled only to the default queue and the jobs were ...
    AbhilaashAbhilaash
    Nov 24, 2009 at 2:24 pm
    Nov 25, 2009 at 3:13 pm
  • Hi all, I have downloaded hadoop and configured it in my local system.I have run the wordcount program with some files as dataset .It run successfully but when I opened the browser to see GUI for ...
    AbhilaashAbhilaash
    Nov 2, 2009 at 2:25 pm
    Nov 4, 2009 at 3:40 pm
  • Hi, Is there any possibility of Google app Engine running Map Reduce behind its framework?. I am doing a project on Google App Engine which has to expose it into different nodes i.e into ...
    HarshadHarshad
    Nov 4, 2009 at 4:51 am
    Nov 4, 2009 at 2:38 pm
  • Hi everyone! In a project involving Hadoop (0.20.1) I´m working, I´d need to know if I´m reading properly the content of a file located in the HDFS. Beside the try...catch block, is there any other ...
    Alberto Luengo CabanillasAlberto Luengo Cabanillas
    Nov 1, 2009 at 4:56 pm
    Nov 3, 2009 at 11:34 pm
  • Does Hadoop Mapreduce guarantee that the *values* returned by Mapper to the Reducer are sorted? Can I safely assume that? Would it always be true - at least for 'Text' type? public void reduce(Text ...
    Something SomethingSomething Something
    Nov 16, 2009 at 7:44 pm
    Nov 17, 2009 at 4:11 am
  • Hi all, We are one week away from the next Bay Area Hadoop User Group - Yahoo! Sunnyvale Campus, next Wednesday (Nov 18th) at 6PM We have an exciting evening planed: *Katta, Solr, Lucene and Hadoop - ...
    Dekel TankelDekel Tankel
    Nov 10, 2009 at 5:21 pm
    Nov 11, 2009 at 5:33 pm
  • Currently I was trying to read the log files generated by hadoop so that I could show the status of map/reduce jobs in user interfaces (consider that UI is a separate application ) I was looking at ...
    Mark NMark N
    Nov 10, 2009 at 9:59 am
    Nov 11, 2009 at 10:51 am
  • Hi all, 1 - I'm trying to compile hadoop-0.20.1 but I'm facing several errors. Hadoop includes several subprojects, but these subprojects are all compiled in one file called hadoop-0.20.1-core.jar. ...
    Psdc1978Psdc1978
    Nov 23, 2009 at 10:10 pm
    Jan 5, 2010 at 6:38 pm
  • Hi, My team is looking into using Scribe or Chukwa for hadoop log collection. I was wondering if anyone had any opinions about one vs. the other? I apologize if this topic was covered before, but I ...
    Kim VogtKim Vogt
    Nov 30, 2009 at 7:55 pm
    Dec 1, 2009 at 11:14 pm
  • We are planning to hold first Hadoop India user group meet up on 28th November 2009 in Noida. We would be talking about our experiences with Apache Hadoop/Hbase/Hive/PIG/Nutch/etc. The agenda would ...
    Sanjay SharmaSanjay Sharma
    Nov 10, 2009 at 6:20 am
    Nov 22, 2009 at 4:42 pm
  • Hi, I have a reduce copier that dies away everytime my 10 iterations of map and reduce pass through: java.io.IOException: attempt_200910061342_0139_r_000001_0The reduce copier failed at ...
    Himanshu chandolaHimanshu chandola
    Nov 21, 2009 at 7:06 am
    Nov 22, 2009 at 3:12 am
  • Hi everyone! I´m developing a Hadoop project using Cywin, Eclipse and VMWare (running a Hadoop 0.20.1 distribution, similar to Cloudera´s one). The problem I´m facing now is that from inside ...
    Alberto Luengo CabanillasAlberto Luengo Cabanillas
    Nov 22, 2009 at 7:45 pm
    Nov 23, 2009 at 2:31 am
  • From: Roshan Karki Sent: Wednesday, November 18, 2009 3:34 PM To: 'common-user@hadoop.apache.org' Subject: how to run the mapreduce job from localfilesystem but in hadoop cluster(fully distributed ...
    Roshan KarkiRoshan Karki
    Nov 19, 2009 at 6:53 am
    Nov 19, 2009 at 11:19 am
  • Hi, http://issues.apache.org/jira/browse/HDFS-385 Has anyone any idea about the new release of Hadoop (0.21) ? Regards, Prashant.
    Prashant sethiaPrashant sethia
    Nov 17, 2009 at 7:38 am
    Nov 17, 2009 at 12:08 pm
  • What are the differences between the 3 concepts: (1) namenode metadata, (2) namenode image, and (3) edit logs? BTW,I know the secondary namenode backups namenode data. I was told that there is ...
    Steve GaoSteve Gao
    Nov 16, 2009 at 8:46 pm
    Nov 16, 2009 at 10:40 pm
  • Hi list, We have a cluster with 44 cores on which we are evaluating OpenNebula. All nodes run Ubuntu server 64bit. I'm trying to get Hadoop 0.20.1 to work, so I'm following the cluster setup steps on ...
    Evert LammertsEvert Lammerts
    Nov 11, 2009 at 10:43 am
    Nov 13, 2009 at 8:04 am
  • Hi, i would like to know when would be the release of the version 0.20.2? i found the bug HBASE-1327 on it and i can start my hbase cluster because of it. ...
    Luis Carlos JungesLuis Carlos Junges
    Nov 10, 2009 at 11:41 am
    Nov 11, 2009 at 1:20 am
  • I think Bernd's prediction has come true: it's no longer clear what form of the bylaws we're voting on. Quick summary: Proposed, uncontroversial (or at least seconded) modifications to the original: ...
    Chris DouglasChris Douglas
    Nov 6, 2009 at 2:04 am
    Nov 6, 2009 at 9:26 pm
  • Hello everybody, we recently released pydoop, a Python MapReduce and HDFS API for Hadoop: http://pydoop.sourceforge.net It is implemented as a Boost.Python wrapper around the C++ code (pipes and ...
    Simone LeoSimone Leo
    Nov 6, 2009 at 6:43 pm
    Nov 6, 2009 at 7:55 pm
  • It occures in our hadoop cluster from time to time(the log is below). Anyone could help? I would like to know what are in the process of(after) committing? What kind of reasons could make ...
    Fred wangFred wang
    Nov 27, 2009 at 5:42 pm
    Nov 27, 2009 at 5:42 pm
  • Folks, where' looking for a number of great software engineers, quality engineers, performance engineers, and managers to join the Sunnyvale, USA and Bangalore, India Hadoop Teams at Yahoo! Please ...
    Nigel DaleyNigel Daley
    Nov 24, 2009 at 7:00 pm
    Nov 24, 2009 at 7:00 pm
  • Hi Everyone, I am writing binary files using SequenceFile.Writer and what I am seeing is that the resulting file is much greater than what it should be. Here's my calculation, if someone can point ...
    Himanshu chandolaHimanshu chandola
    Nov 23, 2009 at 11:46 pm
    Nov 23, 2009 at 11:46 pm
  • Hi, all I'm using hadoop-0.19.1, which is included in nutch 1.0. The HDFS is deployed on 12 nodes, and they work fine. Now I want to put a folder which is about 100GB large into hadoop. Here is the ...
    Xiao yangXiao yang
    Nov 20, 2009 at 6:20 am
    Nov 20, 2009 at 6:20 am
  • The Hadoop PMC would like to welcome Zheng Shao as the newest member. Zheng started on MapReduce, but has spent a lot of time helping the Hive subproject. Zheng, please add yourself to the Hadoop TLP ...
    Owen O'MalleyOwen O'Malley
    Nov 19, 2009 at 6:53 am
    Nov 19, 2009 at 6:53 am
  • Exciting news! The next issue of Open Source Database Magazine (http://www.osdbzine.net) is now available. This information-packed issue has over 60 pages of information including: * Firebird’s Road ...
    Keith MurphyKeith Murphy
    Nov 19, 2009 at 3:42 am
    Nov 19, 2009 at 3:42 am
  • ...and someone with hadoop experience would be very welcome! We're hiring for a web crawling engineer to be the tech lead on a new project to crawl and archive the entire Internet. The non-profit ...
    Alexis RossiAlexis Rossi
    Nov 18, 2009 at 11:25 pm
    Nov 18, 2009 at 11:25 pm
  • Hello, I created a custom writable class called, TextPair, that's identical to the one in Tom White's O'Reilly book (page 97). The only difference is that the compare function works differently. In ...
    Something SomethingSomething Something
    Nov 16, 2009 at 7:24 pm
    Nov 16, 2009 at 7:24 pm
  • I was wondering if we could introduce a template to let the end user add strings and ints to the context and the template could convert them to the appropriate serializable type. I am suggesting that ...
    Apurba Kumar NathApurba Kumar Nath
    Nov 16, 2009 at 7:10 am
    Nov 16, 2009 at 7:10 am
  • is it possible to use local file system ( or NFS) with a distributed cluster configuration ? If its possible what are the configuration that I need to change Currently we are trying to process ...
    Mark NMark N
    Nov 12, 2009 at 12:17 pm
    Nov 12, 2009 at 12:17 pm
  • Hi everybody, At CRS4, Distributed Computing Group (http://dc.crs4.it), we developed and tested a simple patch that adds Grid Engine support to HOD. Since porting HOD to SGE is listed in the Project ...
    Simone LeoSimone Leo
    Nov 11, 2009 at 12:00 pm
    Nov 11, 2009 at 12:00 pm
  • Howdy all. The Chukwa development team is very pleased to announce our first public release, Chukwa 0.3. Chukwa is a log collection framework designed to facilitate large-scale log storage and ...
    Ariel RabkinAriel Rabkin
    Nov 10, 2009 at 5:27 am
    Nov 10, 2009 at 5:27 am
  • If one goes to the Hadoop-Common JIRA and clicks on the RoadMap Option and selects "All Versions" as the scope, one is able to see the different releases being worked on. In some cases in the past, ...
    Stephen WattStephen Watt
    Nov 9, 2009 at 5:39 pm
    Nov 9, 2009 at 5:39 pm
  • (1)I copied PiEstimator in my env. and build a runnable jar, run the hadoop jar , it works with correct result (2) I generated .class in the direcotry ../bin PiEstimator.class ...
    Fred wangFred wang
    Nov 7, 2009 at 2:50 pm
    Nov 7, 2009 at 2:50 pm
  • Hi All - I have setup a 'single node hadoop' (hadoop-version 0.20.0) one localhost by following the instructions from ' ...
    Venkata subbarayuduVenkata subbarayudu
    Nov 5, 2009 at 12:28 pm
    Nov 5, 2009 at 12:28 pm
  • I wrote a CSV Jute record parser in python, and thought some people on the list might also be interested. http://github.com/ptarjan/hadoop_record You can use it in your streaming jobs with ...
    Paul TarjanPaul Tarjan
    Nov 4, 2009 at 10:40 pm
    Nov 4, 2009 at 10:40 pm
  • Hi All, I was setup a single node hadoop (hadoop-0.20.0) and is able to run that have only Map Tasks, but If a task have Map & Reduce tasks, then MapTask is thorwing exceptions saying "Too many fetch ...
    Venkata subbarayuduVenkata subbarayudu
    Nov 4, 2009 at 8:50 am
    Nov 4, 2009 at 8:50 am
  • I did some research to find the ASF projects that manage their websites with Apache Forrest, and am sending similar email to each project's dev mail list. Sent this to your general list, hoping that ...
    David CrossleyDavid Crossley
    Nov 3, 2009 at 4:55 pm
    Nov 3, 2009 at 4:55 pm
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68 users for November 2009

Something Something: 12 posts Steve Loughran: 7 posts Vaibhav Puranik: 7 posts Abhilaash: 6 posts Doug Cutting: 5 posts Harshit Kumar: 5 posts Alberto Luengo Cabanillas: 4 posts Bruce Snyder: 4 posts Jeff Zhang: 4 posts Owen O'Malley: 4 posts Goutham patnaik: 3 posts Himanshu chandola: 3 posts Mark N: 3 posts Rajiv Maheshwari: 3 posts Harshad: 2 posts Huan Liu: 2 posts Arun C Murthy: 2 posts Chris Douglas: 2 posts Dekel Tankel: 2 posts Fred wang: 2 posts
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