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1,110 discussions - 5,844 posts

  • I posted this to common-dev and got no answer, so I'm moving it to -general, it being a general problem: where to put stuff that is part of Hadoop yet which isn't something you can just add to the ...
    Steve LoughranSteve Loughran
    Feb 11, 2013 at 9:21 pm
    Feb 11, 2013 at 9:37 pm
  • Hi, I am getting error OutOfMemoryError: Java heap space “ [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - 0% complete”. Do I need to set the below ...
    Mohit VadheraMohit Vadhera
    Feb 4, 2013 at 7:56 pm
    Feb 4, 2013 at 7:56 pm
  • Folks, The last YARN meetup in October was a lot of fun, let's do it again: http://www.meetup.com/Hadoop-Contributors/events/102571012/ As we did the last go around, folks who are remote are welcome ...
    Arun C MurthyArun C Murthy
    Feb 1, 2013 at 10:52 pm
    Feb 6, 2013 at 5:49 am
  • Is there a document that explains the security features in 2.0? I.e the protocols and crypto involved. I've searched but not found one. Thanks! Eric
    Eric MurrayEric Murray
    Jan 30, 2013 at 10:19 pm
    Jan 30, 2013 at 10:19 pm
  • I am pleased to invite you to our next Munich Open Hadoop User Group Meeting! Like always we are looking forward to see everyone again and are welcoming new attendees to join our group. We are ...
    Lars GeorgeLars George
    Jan 30, 2013 at 3:42 am
    Jan 30, 2013 at 3:42 am
  • Hi, Is there published anywhere a development roadmap for Hadoop for the next few months or years? I'd be very interested to know where the lead developers want to take Hadoop. There are a lot of ...
    Peter CoganPeter Cogan
    Jan 29, 2013 at 12:03 pm
    Jan 29, 2013 at 3:59 pm
  • Hi Ian When you send an email to the address you mentioned, you should receive another email asking you to confirm. Replying to that email should unsubscribe you. I have done that in the past with ...
    Karthik KambatlaKarthik Kambatla
    Jan 28, 2013 at 6:59 pm
    Jan 29, 2013 at 9:36 pm
  • Hi, I installed Hadoop from this link on my Windows 7 machine using cygwin: http://hadoop.apache.org/docs/r0.20.2/quickstart.html#Installing+Software I am getting an error on running bin/hadoop jar ...
    Deepti GargDeepti Garg
    Jan 24, 2013 at 6:11 pm
    Jan 24, 2013 at 8:57 pm
  • Hi, Namenode switches into safemode when it has low disk space on the root fs / i have to manually run a command to leave it. Below are log messages for low space on root / fs. Is there any parameter ...
    Mohit VadheraMohit Vadhera
    Jan 22, 2013 at 9:03 pm
    Jan 22, 2013 at 9:21 pm
  • unsub
    Ryan MacyRyan Macy
    Jan 22, 2013 at 7:29 pm
    Jan 24, 2013 at 6:03 am
  • Jitesh, Please create yourself an account on the Wiki. This can be done by visiting: http://wiki.apache.org/hadoop/?action=newaccount Then tell us the name of the account you've created and we can ...
    Doug CuttingDoug Cutting
    Jan 22, 2013 at 7:28 pm
    Jan 22, 2013 at 7:28 pm
  • Dear Friends Hello I want to start installation of Apache HBase, what is the best Linux distro for it? Recommend to me please !!! I need to store network traffic log Thank You
    Mohammad Reza GeramiMohammad Reza Gerami
    Jan 20, 2013 at 5:18 am
    Jan 23, 2013 at 2:15 pm
  • Hi all: My hadoop version is 1.0.2. Now I want at most 10 map tasks running at the same time. I have found 2 parameter related to this question. a) mapred.job.map.capacity but in my hadoop version, ...
    Jan 18, 2013 at 10:23 am
    Jan 18, 2013 at 3:50 pm
  • Hi all, Am a newbie in hadoop echo system, just wondering if there is any thread or group where newbies can hang in there and take advises or suggestions from Guru's . This will definitely helpful ...
    Jan 13, 2013 at 9:23 pm
    Jan 13, 2013 at 9:23 pm
  • Hi All, I just migrated from 0.20.x. I have been trying to get the eclipse plugin to work for the past few days without success. Can anybody give some advice on how to properly build the eclipse ...
    William KangWilliam Kang
    Jan 12, 2013 at 6:59 pm
    Jan 21, 2013 at 12:40 am
  • Hey Matt, Was wondering if there is any progress on this? I created a build job on jenkins for Hive https://builds.apache.org/job/Hive-trunk-hadoop1/ which is currently failing because of ...
    Ashutosh ChauhanAshutosh Chauhan
    Jan 9, 2013 at 8:06 am
    Jan 9, 2013 at 7:27 pm
  • Hi there, Looks Hadoop is using Google's protocol buffer for its RPC (correct me if I'm wrong). Avro/Thrift do the same thing, support more language, and have a complete PRC implementation. Seems ...
    Hangjun YeHangjun Ye
    Jan 9, 2013 at 2:08 am
    Jan 10, 2013 at 12:45 am
  • Hi, I'm new to the hadoop mailing lists and have a few questions/comments on the Capacity Scheduler. Is this the best place to post? Thanks, Stuart
    S dS d
    Jan 6, 2013 at 6:59 pm
    Jan 6, 2013 at 8:03 pm
  • Hello, I write a bash script to monitor all nodes of Hadoop system. It can monitor memory, disk usage and hadoop,thirift,hbase process exit. Simple Monitor for Hadoop Processes, Memory and Diskspace ...
    Jan 5, 2013 at 9:30 am
    Jan 5, 2013 at 9:38 am
  • I'm running a job over a 380 billion row 20 TB dataset which is computing sum(), max() etc. The job is running fine at around 3 million rows per second for several hours then grinding to a halt as it ...
    Royston SellmanRoyston Sellman
    Jan 4, 2013 at 11:53 am
    Jan 7, 2013 at 9:04 pm
  • Hi, I have installed hadoop cluster . I tried to add other drives in hdfs but didn't get success. I tried to add following parameter in /etc/hadoop/conf/hdfs-site.xml. but it is not working i get ...
    Mohit VadheraMohit Vadhera
    Dec 27, 2012 at 6:33 pm
    Dec 28, 2012 at 10:41 am
  • Hi! Apache Bigtop community is happy to announce our first TLP release of Bigtop 0.5.0. This latest release is based on Hadoop 2.0.2-alpha and it provides full integration between the following ...
    Roman ShaposhnikRoman Shaposhnik
    Dec 26, 2012 at 11:42 pm
    Dec 26, 2012 at 11:42 pm
  • Hi, i'm having a problem with an application that reads files from HDFS. FSDataInputStream.read() returns -1, although the file exists. I am using 2.0.0-cdh4.1.2. Here are the details: One of the ...
    Christoph RuppChristoph Rupp
    Dec 18, 2012 at 10:41 am
    Dec 18, 2012 at 10:41 am
  • I have a small cluster of 15 machines, running hadoop-1-0-2. Each machine runs kernel 2.6.35, has a root disk mounted under nfs (all machines have the same root file system) and a local disk (mounted ...
    Mihail IonescuMihail Ionescu
    Dec 8, 2012 at 5:02 pm
    Dec 10, 2012 at 11:10 am
  • Hi, sorry for the thrash, but further testing in a whole-stack situation with Hive over Hadoop-1.1.1, exposed bug HADOOP-9115<https://issues.apache.org/jira/browse/HADOOP-9115 , "Deadlock in ...
    Matt FoleyMatt Foley
    Dec 5, 2012 at 8:31 am
    Dec 5, 2012 at 5:45 pm
  • Hi, I am new to Hadoop and wish to pitch in! This is my second email of this nature, as I'm not sure if my first was addressed correctly. I've been looking over the various issues on Jira and I'm ...
    Joseph KniestJoseph Kniest
    Dec 5, 2012 at 3:51 am
    Dec 5, 2012 at 4:19 am
  • I'm pleased to announce that Hadoop version 1.1.1 is released as the newest stable version. The 20 bug fixes and improvements over 1.1.0 may be found in the Release Notes at ...
    Matt FoleyMatt Foley
    Dec 3, 2012 at 7:51 am
    Dec 3, 2012 at 7:51 am
  • Hello everyone, we're happy to announce that we have just released Pydoop 0.7.0 (http://pydoop.sourceforge.net). The main changes with respect to 0.7.0-rc1 are: * support for HDFS append open mode -- ...
    Simone LeoSimone Leo
    Nov 29, 2012 at 3:53 pm
    Nov 29, 2012 at 3:53 pm
  • Hello I work for a large consumer organisation and we provide as a service for our members several calculators where our members can calculate based on their profile which is the: - cheapest energy ...
    Gabriel Lozano-MoranGabriel Lozano-Moran
    Nov 27, 2012 at 8:40 pm
    Nov 28, 2012 at 1:37 am
  • Hi everyone, I am trying to set up Hadoop on clusters, but because of my university rules, I cannot use default port for SSH. Also, I did not find how can I configure ssh port from which datanodes ...
    Fatih HaltasFatih Haltas
    Nov 25, 2012 at 2:02 pm
    Nov 25, 2012 at 2:13 pm
  • I've created a release candidate (RC0) for hadoop-0.23.5 that I would like to release. This release is a sustaining release with several important bug fixes in it. The RC is available at ...
    Thomas GravesThomas Graves
    Nov 20, 2012 at 7:25 pm
    Feb 6, 2013 at 4:32 pm
  • Hi, This is my first attempt to learn the map reduce abstraction. My problem is as follows I have a text file as follows: id 1, id2, date,time,mrps,code,code2 3710100022400,1350219887, 2011-09-10, ...
    Jamal sashaJamal sasha
    Nov 20, 2012 at 1:18 am
    Nov 20, 2012 at 1:19 am
  • On the heels of the planned 0.23.5 release (thanks Bobby & Thomas) I want to rollout a hadoop-2.0.3 release to reflect the growing stability of YARN. I'm hoping we can also release the QJM ...
    Arun C MurthyArun C Murthy
    Nov 16, 2012 at 6:41 am
    Jan 29, 2013 at 5:52 pm
  • It is supposed to run every 10 minutes, but it hasn't run for 3.5 hours now.
    Kihwal LeeKihwal Lee
    Nov 15, 2012 at 4:17 am
    Nov 15, 2012 at 7:11 am
  • HBase fans, I’m writing to announce the first release of KijiSchema, a new project to help developers build applications on HBase. You can download it at www.kiji.org. It is open source and published ...
    Aaron KimballAaron Kimball
    Nov 14, 2012 at 10:21 pm
    Nov 14, 2012 at 10:21 pm
  • Hello everyone, we're happy to announce that we have just released Pydoop 0.7.0-rc1 (http://pydoop.sourceforge.net). The main changes with respect to the previous version are: * support for CDH4 ...
    Simone LeoSimone Leo
    Nov 13, 2012 at 11:42 am
    Nov 13, 2012 at 11:42 am
  • Let's move the discussion to general@first. Tsz-Wo ----- Forwarded Message 1/2 ----- From: Arun C Murthy <<span class="m_body_email_addr" title="5c1e41dd73629a7c8bfdeee4f8813d6e" ...
    Tsz Wo SzeTsz Wo Sze
    Nov 12, 2012 at 11:24 pm
    Nov 16, 2012 at 3:59 pm
  • Dear community, Hadoop developers, The Apache Asia RoadShow 2012[1] is going to happen in Beijing China, on 13th Dec. This year's event is supported by China cloudvalleyworld [1]( which is a cloud ...
    Jimmy,Jing LvJimmy,Jing Lv
    Nov 10, 2012 at 4:03 pm
    Nov 17, 2012 at 1:08 pm
  • Hello, I would like to run an Hadoop program which is composed by Map1-Red1- Map2-Red2- Map3-Red3. I've read "Hadoop in Action" and several articles online, but all of them are either based on API <= ...
    Claudio ReggianiClaudio Reggiani
    Nov 8, 2012 at 1:04 pm
    Nov 8, 2012 at 7:13 pm
  • In order to share the fun with others I would like to ask Tom Graves to take over for me as the branch-0.23 release manager. I have talked with him and we think that we should spin a 0.23.5 release ...
    Robert EvansRobert Evans
    Nov 7, 2012 at 5:40 pm
    Jan 16, 2013 at 4:59 pm
  • I have two questions... First, our Hadoop cluster uses a back-end, non-routed network for transfering data, it is not routed and not accessible beyond the cluster. Thus, the resulting URLs the Hadoop ...
    Forrest AldrichForrest Aldrich
    Nov 5, 2012 at 10:08 pm
    Nov 5, 2012 at 10:08 pm
  • When i running Hive query option: there often throw Error from Reduce Tasks: Error: java.io.IOException: File too large at java.io.FileOutputStream.writeBytes(Native Method) at ...
    Nov 2, 2012 at 9:00 am
    Nov 2, 2012 at 9:00 am
  • http://www.1060.org/blogxter/entry?publicid=E47B0A97528CCD973524C9A938A2E8D9
    Steve LoughranSteve Loughran
    Nov 1, 2012 at 10:36 am
    Nov 1, 2012 at 10:36 am
  • Hi, I am getting the following error while running the sample on a window machine. I can see lot of messages on net about it, but most of them talk about going back to version 0.20.2 which is pretty ...
    Abhinav MishraAbhinav Mishra
    Oct 28, 2012 at 6:08 pm
    Oct 29, 2012 at 9:27 am
  • Respected Sir/Madam,
    Sagar nikamSagar nikam
    Oct 27, 2012 at 9:44 am
    Oct 27, 2012 at 9:44 am
  • Hello, Below is a proposal for a new incubator project. This idea came out of and had strong support on the general hadoop list, see the thread at ...
    Adam BerryAdam Berry
    Oct 17, 2012 at 8:02 pm
    Nov 6, 2012 at 5:20 pm
  • Have bought it but now need to cancel trips. can give away with 30% discount. please contact this email or call 408-821-5915 asap. Thanks
    Oct 16, 2012 at 7:32 am
    Oct 16, 2012 at 7:32 am
  • Hello, The release of Hadoop-1.1.0 has been voted, accepted, and posted. It is available in SVN and Maven, as well as at http://www.apache.org/dist/hadoop/common/hadoop-1.1.0/ It is still propagating ...
    Matt FoleyMatt Foley
    Oct 15, 2012 at 4:09 am
    Oct 18, 2012 at 9:28 am
  • Hello, The release of Hadoop-1.0.4 has been voted, accepted, and posted. It is available in SVN and Maven, as well as at http://www.us.apache.org/dist/hadoop/common/hadoop-1.0.4/ It is still ...
    Matt FoleyMatt Foley
    Oct 12, 2012 at 9:02 pm
    Oct 15, 2012 at 5:32 pm
  • I need some features which are not available in current 1.xx stable versions of hadoop so can i go with using 0.23.3 in production...
    Visioner SadakVisioner Sadak
    Oct 11, 2012 at 10:22 am
    Oct 12, 2012 at 7:33 pm
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