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256 discussions - 822 posts

  • hi: We’re using CDH4.2, MR1, CentOS 6.2 and Java 1.6_31. When the JobTracker run after some days,the heap memory continue growing and can't be released. I found a similar problem at the mail list of ...
    Agile javaAgile java
    Apr 29, 2013 at 2:12 pm
    Oct 7, 2013 at 9:43 am
  • I have been trying to use the python client for server2 (I am using CDH4, Hive 0.10.x) and every execute function on the client hangs on recv_execute. I am using Python 2.7 for running the client. I ...
    Vidhya VenkataramanVidhya Venkataraman
    Apr 16, 2013 at 2:28 pm
    May 8, 2013 at 3:43 pm
  • the HADOOP env vars are not set, including HADOOP_CONF. So where is the conf dir containing the *-site.xml ? thx! stephenb --
    Stephen BoeschStephen Boesch
    Apr 20, 2013 at 7:28 pm
    Dec 12, 2013 at 5:05 pm
  • I am trying to get security running for Hadoop on just two machines (head and node1) and I'm following the security guide ...
    Nathan WidmyerNathan Widmyer
    Apr 15, 2013 at 3:33 pm
    Apr 26, 2013 at 4:33 pm
  • Ok so we installed the LZO libraries using the gplextras<http://archive.cloudera.com/gplextras/ repo. Now how do we go about configuring this for use? From what I read you'll need to add the ...
    StaticVoidStaticVoid
    Apr 29, 2013 at 4:52 pm
    Jun 26, 2013 at 11:09 am
  • Hi Harsh, I am trying to provide hbase coprocessor dependencies stored in hdfs, since I don't want to copy the dependencies throughout the cluster. As you commented in earlier posts that we cannot ...
    Kumar, Deepak8Kumar, Deepak8
    Apr 15, 2013 at 8:53 am
    Apr 30, 2013 at 4:26 pm
  • I installed everything using CDH4 cloudera manager. Oozie configuration was changed to run as "hduser". It seems to be happy and comes up fine when restarted from cloudera manager. When a client ...
    VikramVikram
    Apr 19, 2013 at 5:56 am
    Apr 23, 2013 at 3:49 am
  • Hi: please,i want to use cdh4.1.2 tarball,to configure namenode HA and use mr1,the cdh4.1.2 tarball seems to support only yarn. how to use cdh4.1.2 tarball configure HA&mr1? thanks!!! 2013-04-10 Kind ...
    XujingangXujingang
    Apr 10, 2013 at 7:08 am
    Apr 15, 2013 at 3:09 am
  • Hello, I'm working on a presentation about getting started programming for hadoop. I'm using the examples from Hadoop The Definitive Guide Chapter 5 by Tom White (v3) and the CDH4 VM from cloudera ...
    Wesley ReiszWesley Reisz
    Apr 17, 2013 at 3:47 am
    Aug 21, 2013 at 4:13 pm
  • Hi, we continuously moving to production. Now we are facing with repeatable OutOfMemory error on HiveServer2 Here is the log: INFOorg.apache.hadoop.hive.ql.exec.Utilities Content Summary ...
    Serega SheypakSerega Sheypak
    Apr 30, 2013 at 1:49 pm
    May 16, 2013 at 10:44 am
  • Hi, I am trying to set a hive installation using a remote mysql metastore. I am using CDH4.2 on a fresh installation. All this in a single machine, so I am using hadoop pseudo distributed mode. So ...
    DtravelerDtraveler
    Apr 3, 2013 at 1:27 am
    Apr 3, 2013 at 9:22 pm
  • Another bzip2 question. I have a lot of bzip2 files - some of which can be up to 500Mb in size. What parameter do i have to set on my Job to have hadoop split these bzip files ? At the moment i get ...
    Graeme WallaceGraeme Wallace
    Apr 12, 2013 at 1:48 am
    Apr 25, 2013 at 6:58 pm
  • Hi, I am trying to run sqoop with Oozie (CDH4.1.2 with Teradata connector), and I got the following exceptions: 3243 [main] WARN org.apache.sqoop.tool.SqoopTool - $SQOOP_CONF_DIR has not been set in ...
    Jliu2003Jliu2003
    Apr 19, 2013 at 4:54 am
    Apr 24, 2013 at 3:40 am
  • All: At Cloudera, we have the privilege of helping thousands of developers learn Hadoop, as well as build and deploy systems and applications on top of Hadoop. While we (and many of you) believe ...
    Eric SammerEric Sammer
    Apr 4, 2013 at 11:21 pm
    Apr 6, 2013 at 8:37 am
  • Hi, we disable and drop table name 'F_test', but still cannot create a new table with the same name. shell list shows it is not exist. below is part of log: hbase(main):032:0 list 'F_test' TABLE 0 ...
    Hua beatlsHua beatls
    Apr 16, 2013 at 6:41 am
    Jul 31, 2013 at 6:51 pm
  • Hi, There are many ' HLog roll requested' in the regionserver 's log, pls see below, is this normal state? 200821; duration=4sec 2013-04-25 22:19:50,041 DEBUG ...
    Hua beatlsHua beatls
    Apr 25, 2013 at 2:20 pm
    Apr 26, 2013 at 5:11 pm
  • Hi, testing export tool( bin/hbase org.apache.hadoop.hbase.mapreduce.Export) i have a question if this tool support to export hbase data to local file rather that hdfs file? Best R. beatls --
    Hua beatlsHua beatls
    Apr 24, 2013 at 4:34 pm
    Apr 26, 2013 at 3:15 pm
  • I have an issue with my storm worker trying to talk to CDH4 hadoop. Its working fine in cdh3. I am guessing that some client jar files are missing. I have browsed through forums and some of them ...
    Kishore YellamrajuKishore Yellamraju
    Apr 24, 2013 at 12:15 am
    Apr 24, 2013 at 1:37 am
  • I installed Hive cdh4 on RHEL. Whenever I start Hive from a directory, it creates metastore_db dir in it and a derby.log file. Is it a normal behaviour? Moreover, when I create a table, starting Hive ...
    Harman SinghHarman Singh
    Apr 21, 2013 at 3:11 pm
    Apr 23, 2013 at 7:44 pm
  • I want to set the profile properties in mapreduce command line. can I do that? or do I have to edit mapreduce.xml file how do I set this using cloudera manager? --
    John cdhJohn cdh
    Apr 1, 2013 at 11:58 pm
    Apr 3, 2013 at 3:27 am
  • I'm trying to run a Mahout job via the oozie workflow manager but I keep receiving the following error: Error: java.lang.ClassNotFoundException: org.apache.mahout.math.Vector at ...
    StaticVoidStaticVoid
    Apr 9, 2013 at 10:20 pm
    Mar 30, 2014 at 12:51 pm
  • Hi, Resending, as the previous mail bounced. Please refer to the message below. Thanks Hemanth --
    Hemanth YamijalaHemanth Yamijala
    Apr 3, 2013 at 1:32 am
    Dec 23, 2013 at 4:55 pm
  • Dears, coordinator.xml is <coordinator-app name="aggregator-coord" frequency="${coord:hours(1)}" start="2013-04-25T01:00Z" end="2013-04-26T12:00Z" timezone="GMT+08:00" ...
    HonestHonest
    Apr 25, 2013 at 7:56 am
    Apr 29, 2013 at 6:14 pm
  • Hi, Has any one applied the Hadoop certification for Administrators? are the docs they have on the website good enough? Thanks in advance, --
    Ahmad HamadAhmad Hamad
    Apr 26, 2013 at 10:16 pm
    Apr 27, 2013 at 10:58 am
  • Dears, Owing to HBase in CDH3U4 using HFile V1 format and HBase in CDH4.2 using HFile V2 format , is there anything need to be concerned when upgrade from CDH3U4 to CDH4.2 ? What's the best practice ...
    James ChangJames Chang
    Apr 23, 2013 at 5:46 am
    Apr 25, 2013 at 4:31 pm
  • hi Mo, I am also planning to take CDH410. Could we maybe collaborate or discuss few concepts ? Please let me know. Thanks. Thanks suresh --
    Hadoop userHadoop user
    Apr 4, 2013 at 5:57 pm
    Apr 23, 2013 at 8:58 pm
  • Hi --
    Hadoop userHadoop user
    Apr 20, 2013 at 5:29 pm
    Apr 23, 2013 at 1:02 am
  • Hi, I'm trying to parse logs using oozie coordinators. Logs are generated each hour in Europe/Moscow timezone. The oozie sever is also in *Europe/Moscow *timezone (server date is correct) ...
    Serega SheypakSerega Sheypak
    Apr 12, 2013 at 1:18 pm
    Apr 22, 2013 at 4:44 pm
  • Moving your post to <span class="m_body_email_addr" title="86a2600876a028bfc6f8cbcf265c9e54" cdh-user@cloudera.org</span , as this list is more apt for CDH users. Can you share if you added in any ...
    Harsh JHarsh J
    Apr 15, 2013 at 1:11 pm
    Apr 20, 2013 at 6:33 am
  • Hey, I'm trying to set up an oozie server but I have some problems and couldn't figure out what's the reason.. I got hadoop 1.0.4 and oozie 3.0.2 running when i run the command, it seems to be ...
    Mi SchaMi Scha
    Apr 8, 2013 at 3:45 pm
    Apr 19, 2013 at 3:13 pm
  • Hey, I'm running oozie on my cluster.. and it seems to run.. I tested the map-reduce example of oozie (it failed, but it doesn't seem to be failed by oozie itself.. but hdfs and hadoop is running ...
    Mi SchaMi Scha
    Apr 12, 2013 at 11:45 am
    Apr 19, 2013 at 3:08 pm
  • How can I configure Maximum Queue capacity of Yarn cluster from cloudera manager? --
    Laxman VemulaLaxman Vemula
    Apr 11, 2013 at 2:14 pm
    Apr 12, 2013 at 4:06 pm
  • Can someone please tell me if I have a HDFS cluster with data and I'll be upgrading to HA whether or not I actually have to move the current edits info to the journal nodes' edits dir? I'm concerned ...
    Adam HamnerAdam Hamner
    Apr 10, 2013 at 7:48 pm
    Apr 10, 2013 at 8:48 pm
  • Hi, all! I configured hive to use HA HDFS, however hive occasionally failed to submit jobs because of connect STANDBY NN. Standby NN' log say it refused the write/read operation from client hive. Why ...
    Jie WangJie Wang
    Apr 1, 2013 at 2:53 am
    Apr 1, 2013 at 10:16 am
  • Hi, I have Microstrategy 9.3.0 and I have installed the Cloudera Connector for MicroStrategy to access the hadoop data. The Hive version is 0.7.1. I created a DSN (32 bit) and entered the connection ...
    ChandraChandra
    Apr 26, 2013 at 12:48 pm
    Apr 29, 2013 at 11:57 pm
  • HI , Why does it require a NN restart to add a new data node ? isn't this issue fixed in CDH4. please confirm if we still have to restart NN/JT to add a new data node/TT respectively. Thank in ...
    Raja yRaja y
    Apr 17, 2013 at 10:19 pm
    Apr 19, 2013 at 7:58 pm
  • Hi All, I have just set up a CDH cluster on EC2 using cloudera manager 4.5. I have been trying to run a couple of mapreduce jobs as part of an oozie workflow but have been blocked by the following ...
    Som SatapathySom Satapathy
    Apr 17, 2013 at 12:58 am
    Apr 19, 2013 at 4:02 am
  • Folks, I am new to Hadoop. I have set up a cluster using Cloudera manager. I am now trying to setup a client from where I can load data and run mapreduce jobs. Can someone please point me to what I ...
    AAK-HadoopNewbieAAK-HadoopNewbie
    Apr 17, 2013 at 8:35 pm
    Apr 17, 2013 at 9:49 pm
  • HI, I have a cluster setup in high availability mode. Hbase master runs on a active namenode. Now once Active Namenode goes down, the stand by takes over. But how can I make Hbase Master highly ...
    Abhinav wagleAbhinav wagle
    Apr 10, 2013 at 4:59 pm
    Apr 10, 2013 at 5:29 pm
  • I installed VirtualBox, installed the open jdk and installed Hadoop CDH4 on the box and when I am trying to start the namenode and it is shutting down automatically. --
    Krishna NarlaKrishna Narla
    Apr 9, 2013 at 6:56 pm
    Apr 10, 2013 at 2:34 pm
  • Hi All, We've setup CDH4 at our site at University of Ghent but I have an issue when I try to connect Pentaho to Hive through JDBC. It just hangs and when I look into the Hiveserver log I see the ...
    Cedric De VroeyCedric De Vroey
    Apr 9, 2013 at 12:17 pm
    Apr 10, 2013 at 11:37 am
  • Hi Guys one of my Hbase regionServer Health is bad. so please any body can help to solve the problem.My log file deatails is Exception in thread "regionserver60020" java.lang.NullPointerException at ...
    SrinivasanSrinivasan
    Apr 4, 2013 at 10:26 am
    Apr 9, 2013 at 5:30 am
  • Hi, please help me with advice. I have awful mess in my head. I don't understand Hive2 architecture. The problem is: I'm trying to run Oozie coordinator. This coordinator triggers Workflow with: 1 ...
    Serega SheypakSerega Sheypak
    Apr 5, 2013 at 12:52 pm
    Apr 8, 2013 at 5:51 pm
  • I am able to setup a CDH cluster using the blog (1). First the CDH Manager is installed and then I able to setup a two node Hadoop cluster. But, I am able to login to the Hadoop cluster using the ...
    Praveen SripatiPraveen Sripati
    Apr 4, 2013 at 2:59 pm
    Apr 5, 2013 at 3:36 pm
  • Hi All, Could you please share me , how to start/configure SSN in Different Physical Machine. Currently it is start on name node machine I want to start SSN in Different machine. Regards, samir. --
    Samir.helpdocSamir.helpdoc
    Apr 1, 2013 at 6:10 am
    Apr 1, 2013 at 8:27 am
  • Hi, I'm trying to run query: ALTER table... add partition using JDBC connection. THe queey is correct 100%. I Do take it from log, run through beeswax hive UI and it works. I've inspected HiveServer2 ...
    Serega SheypakSerega Sheypak
    Apr 7, 2013 at 12:54 pm
    Mar 20, 2014 at 10:14 am
  • Hi all, I have mounted HDFS on my master node and then exported it via NFS. From my database machine, I mounted that exported folder so our database machine (runs SUSE 11) can access the HDFS as a ...
    DEWEI SUNDEWEI SUN
    Apr 11, 2013 at 6:01 pm
    Nov 19, 2013 at 1:26 pm
  • Hi, everyone. I've just updated my cdh3u5 to 3u6, and run an example: hadoop jar /usr/lib/hadoop-0.20/hadoop-0.20-cdh3u6-examples.jar pi 10 100 and it goes smoothly. However, dfs web ui is not ...
    Charles AiCharles Ai
    Apr 27, 2013 at 7:20 am
    May 18, 2013 at 2:36 am
  • Hi All today some regionservers shutdown suddenly here is the error log from hmaster,hregionserver and datanode datanode: 2013-04-25 17:28:12,234 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode ...
    MojiananMojianan
    Apr 26, 2013 at 9:51 am
    May 14, 2013 at 11:31 am
  • Hi' I've created HA Namenode using quorum based journaling. My flume agents stopped to deliver data to HDFS. What do I have to write here: myagent.sinks.source_http_landing_hdfs_sink1.hdfs.path = ...
    Serega SheypakSerega Sheypak
    Apr 10, 2013 at 3:47 pm
    May 6, 2013 at 7:14 am
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226 users for April 2013

Harsh J: 90 posts Serega Sheypak: 33 posts Xujingang: 33 posts Hua beatls: 30 posts Kishore Yellamraju: 19 posts Eric Sammer: 15 posts Robert Kanter: 15 posts Alejandro Abdelnur: 12 posts Raghuram Gururajan: 10 posts Sandy Ryza: 10 posts Aaron T. Myers: 9 posts Graeme Wallace: 9 posts Jimmy Xiang: 9 posts Mark Grover: 9 posts Nathan Widmyer: 9 posts Panshul Whisper: 9 posts StaticVoid: 9 posts Subroto Sanyal: 9 posts Vikram: 9 posts Jean-Daniel Cryans: 8 posts
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