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185 discussions - 775 posts

  • Hi All, I have a hbase table with one column family. The row_key is some_number+date in dd-mon-yy HH:MM:SS format. When I scan the table using below scan command on CLI, hbase returns rows (below) ...
    Dec 4, 2012 at 4:14 pm
    Dec 5, 2012 at 6:40 pm
  • hi, I imported a table from oracle into hive using sqoop (see command below) and import finished successfully. But I cannot find that table. Hive show tables does not display "mytable". I cant find ...
    Prakash RanadePrakash Ranade
    Dec 28, 2012 at 5:07 pm
    Feb 22, 2014 at 4:01 pm
  • Hi guys I'm having an issue with my namenode service restarting.. The dfs.data.dir is correct and there is an FSImage there but I keep getting ERROR org.apache.hadoop.hdfs.server.namenode.NameNode ...
    Dec 29, 2012 at 10:54 pm
    Jan 3, 2013 at 8:18 pm
  • We recently went through an upgrade from CDH 4.0 to CDH 4.1.1. During the upgrade all of the blocks checked in and HDFS fsck seemed to be reported that everything is correct. When we started up HBase ...
    Micah WhitacreMicah Whitacre
    Dec 6, 2012 at 6:03 am
    Dec 10, 2012 at 11:49 am
  • Hi, I'm trying to query table which has timestamp in millis field. Here is my DDL: *create table xvlr_data(MSISDN STRING , IMSI STRING , IMEI STRING, CELLID STRING, LAC STRING , MSC STRING, EVENT ...
    Serega SheypakSerega Sheypak
    Dec 18, 2012 at 4:19 pm
    Dec 28, 2012 at 6:31 pm
  • Hi Shengjie, This question is specific to CDH and hence does not belong to the Apache HDFS development lists (Which is for HDFS project developers). I've hence moved your question to CDH's own user ...
    Harsh JHarsh J
    Dec 7, 2012 at 1:42 pm
    Dec 7, 2012 at 9:54 pm
  • Hi This is the first time I am mailing this user list. I am using CDH4 and trying to do a distance calculation between 2 tables which have latitudes and longitudes using a 26 node cluster. I try to ...
    Nirup reddyNirup reddy
    Dec 14, 2012 at 4:01 pm
    Dec 19, 2012 at 1:27 am
  • Hi, I'm supposed to process lzo files in pig script. Has anyone done it on CDH4? I considered using Elephant Bird<https://github.com/kevinweil/elephant-bird , but it can't be built successfully at ...
    Marcin SmialekMarcin Smialek
    Dec 13, 2012 at 3:31 pm
    Nov 28, 2013 at 10:50 pm
  • Hi Guys, Please help me out how do i process my image in mapreduce framework. What input format i need to choose? Any sample program would be greatly appreciated..! Thanks, Ravi Sharma --
    Ravi SharmaRavi Sharma
    Dec 7, 2012 at 10:01 am
    Nov 18, 2013 at 10:41 am
  • Hi, When I start hive-server deamon it creates /tmp/hive-default-many-many-digits file. It contains list of properties that are apparently expected to be found at /tmp directory after some time. But ...
    Marcin SmialekMarcin Smialek
    Dec 3, 2012 at 12:58 pm
    Feb 26, 2013 at 7:13 pm
  • Hi, I have installed CDH4.0.1 tarballs on my machine. I am able to start the mrv2 (yarn version) and run and use hadoop. I now want to start MRV1. How do I start the jobtracker and tasktracker ...
    Dec 29, 2012 at 9:49 pm
    Jan 2, 2013 at 8:17 pm
  • have installed CDH4 4.1.2, CLoudera Manager 4.1.2, MRV1 4.1.2 and Hive hive-0.9.0-cdh4.1.2 through tarballs on a 3 node cluster. Cloudera Manager,Name Node, Datanodes, job trackers and task trackers ...
    John HJohn H
    Dec 28, 2012 at 9:32 pm
    Jan 3, 2013 at 7:02 am
  • I recently upgraded CM4.1.2 to CM4.5beta, but there was a problem so I backed it out. I had to uninstall CM4.5beta and reinstall CM4.1.2 on the whole cluster. By doing this, the namenodes got ...
    Dec 19, 2012 at 6:11 pm
    Dec 21, 2012 at 2:44 am
  • It's possible to deploy Flume-ng using rpm. We did do several extensions to Flume (sink, sources, e.t.c.) and would like to build our own rpm with extensions included. Where can I find srpm for ...
    Serega SheypakSerega Sheypak
    Dec 14, 2012 at 3:43 pm
    Dec 17, 2012 at 7:19 pm
  • Hello, I'm using CDH 4.1 to run Pig scripts through the HUE shell. I have a UDF that stores into Hive (HiveServer2) and that accesses HBase to checkAndPut. All of this is on one node running Ubuntu ...
    Y. I. AboulNagaY. I. AboulNaga
    Dec 6, 2012 at 2:16 am
    Dec 10, 2012 at 6:47 pm
  • Hey all, I just secure hadoop, and zookeeper, but when trying to start hbase, I get this error message: 12/12/07 16:14:17 ERROR security.UserGroupInformation: PriviledgedActionException ...
    Tony ChongTony Chong
    Dec 8, 2012 at 12:24 am
    Dec 10, 2012 at 6:28 am
  • Hello, I've got a new development Kerberos setup that is causing me an issue. The Cloudera docs (as well as everybody else on the internet that I can find) indicates that for the principal ...
    Wes DWes D
    Dec 31, 2012 at 10:31 pm
    Jan 3, 2013 at 7:39 pm
  • 2012-12-02 06:52:45,864 INFO [main] org.apache.hadoop.mapred.Task: Using ResourceCalculatorPlugin : org.apache.hadoop.yarn.util.LinuxResourceCalculatorPlugin@228b677f 2012-12-02 06:52:51,419 FATAL ...
    Serega SheypakSerega Sheypak
    Dec 2, 2012 at 12:20 pm
    Dec 22, 2012 at 8:06 pm
  • Hi, I'm new to Cloudera Hadoop and have some silly problems. Here is the one: I'm tryng to connect to HDFS using Java api and list files (what can be more simpler?). I do get such error: *Server IPC ...
    Serega SheypakSerega Sheypak
    Dec 7, 2012 at 6:16 am
    Dec 11, 2012 at 11:44 pm
  • we added a lot of partitions to Hive, but the when executing SQLs through the Hive server, but the server down after executing some SQLs , I want to know is there any way to avoid this to hadppen, ...
    Dec 2, 2012 at 11:52 am
    Dec 3, 2012 at 4:21 pm
  • Hi, I want to set up a hadoop environment locally on my machine that is similar to CDH4. I have Hadoop 1.0.3 running locally on my box (mac os x lion) and I use that for testing MR jobs and related ...
    Pankaj GuptaPankaj Gupta
    Dec 28, 2012 at 2:06 am
    Jan 22, 2013 at 2:50 am
  • When selecting data from hive via JDBC call from spring I am getting a truncated result back on a long string. But when running the same query on the hive command line I see the full string. Anyone ...
    Dec 12, 2012 at 8:51 pm
    Jan 10, 2013 at 1:23 pm
  • HI everyone, i have installed cdh4 on 4node cluster ... and after that i have integrate the hive and hbase ,then i have created one table through hive for hbase.. table created fine but when i want ...
    Dec 1, 2012 at 10:57 am
    Dec 28, 2012 at 1:05 pm
  • Hi, I want to look at the source code of HDFS1 in CDH4. Where can I download the source code for the same? Thanks, Pankaj PS: I googled a bit and searched the mailing list archives but couldn't find ...
    Pankaj GuptaPankaj Gupta
    Dec 20, 2012 at 6:10 pm
    Dec 20, 2012 at 11:40 pm
  • Hi, I'm trying to install Impala using Cloudera manger free. I've enabled service and tried to start it. I did get such error message: ** *1 validation warning.* - The recommended configuration for ...
    Serega SheypakSerega Sheypak
    Dec 17, 2012 at 12:07 pm
    Dec 20, 2012 at 2:53 am
  • Does anyone know if Cloudera Manager, Hue, Hive, and Oozie all support Postgres DB? I would like to move from MySQL to it if possible. My company discourages use of MySQL. Thanks, Ben --
    Dec 19, 2012 at 11:06 pm
    Dec 20, 2012 at 1:39 am
  • we are using cdh3u3 and the datanode died with the below exception Exception in thread "Timer thread for monitoring dfs" java.lang.OutOfMemoryError: GC overhead limit exceeded at ...
    Jabir AhmedJabir Ahmed
    Dec 11, 2012 at 8:49 pm
    Dec 14, 2012 at 3:14 pm
  • I can't find much documentation on HDFS directory/file permissions other than using Kerberos for security. Can anyone explain to me what the LDAP Group Mapping configurations for HDFS are about? ...
    Dec 11, 2012 at 8:04 pm
    Dec 12, 2012 at 1:57 am
  • Hi, We are trying to upgrade to cdh4 version: 2.0.0-mr1-cdh4.1.2. We are using the org.apache.hadoop.mapreduce.Job.submit() method which is supposed to according to JavaDocs "Submit the job to the ...
    Mark SchaakeMark Schaake
    Dec 28, 2012 at 9:59 pm
    Jan 8, 2013 at 1:49 am
  • Hi all, I have a use case which is implemented in hive with partitions. Say Customer_data/2012-12-18/.... /2012-12-17/.... /2012-12-16/.... / / I want implement this in pig. How will partitions work ...
    Dec 18, 2012 at 10:39 pm
    Dec 21, 2012 at 2:01 pm
  • I'm trying to replace HDFS with Lustre, and I'm having configuration issues trying to run teragen from the TeraSort benchmark (see stacktrace below). I followed the directions on the Apache Wiki on ...
    Matt ParkerMatt Parker
    Dec 19, 2012 at 6:15 pm
    Dec 21, 2012 at 2:01 pm
  • Hello, First of all, I apologize if this is something obvious, but we've tried everything we can think of here and are out of options. We're deploying a custom Java application that uses Cascading to ...
    Jonathan GubermanJonathan Guberman
    Dec 18, 2012 at 6:52 pm
    Dec 18, 2012 at 8:55 pm
  • Latest Cloudera CDH4, running on Centos 6.2. Here's my error: * * *bash-4.1$ hadoop fs -ls* *Config name: /etc/krb5.conf* * KinitOptions cache name is /tmp/krb5cc_494* * DEBUG <CCacheInputStream ...
    Tony ChongTony Chong
    Dec 6, 2012 at 12:50 pm
    Dec 7, 2012 at 4:48 am
  • Hi, I installed Cloudera Manager(4.1.1) and CDH4 (4.1.2) using tarball on Ubuntu 10.04.4 (VM using virtual box). I was able to setup Cloudera manager server and agent, setup roles (NN,DN and ...
    John HJohn H
    Dec 2, 2012 at 7:46 pm
    Dec 3, 2012 at 6:39 am
  • Hi, Can some one help please, i am trying to setup oozie in my 20 node cluster, and getting below error. vi localhost.2012-12-01.log Dec 1, 2012 6:22:11 PM org.apache.catalina.core.StandardContext ...
    Venkat minupalaVenkat minupala
    Dec 2, 2012 at 12:31 am
    Dec 2, 2012 at 4:19 pm
  • Hi, I am looking for information about how to migrate Oozie jobs from MR1 to Yarn. I already know how to make Oozie make use of Yarn and how to install the right sharelib. I couldn't, however, find ...
    Dec 10, 2012 at 4:32 pm
    Jun 19, 2013 at 7:26 am
  • Hi, I've downoaded VM image of CDH 4.1 I would like to configure and run ganglia monitoring service. Is there any guide how to do it? Thank you. --
    Serega SheypakSerega Sheypak
    Dec 2, 2012 at 1:52 pm
    Jan 9, 2013 at 7:54 am
  • hi all, I have 3 node and my name node is crash, What should I do to restore my data in hdfs? thanks --
    Enes yücerEnes yücer
    Dec 18, 2012 at 3:40 pm
    Dec 31, 2012 at 5:18 am
  • Hi. I do have single CDH 4.1.1 image and Hive works there. I have a cluster CDH 4.1.1 with Cloudera manager free installed. Beeswax works fine. But I do have troubles connecting to it using JDBC ...
    Serega SheypakSerega Sheypak
    Dec 24, 2012 at 3:48 pm
    Dec 25, 2012 at 11:55 am
  • Hi I am getting the below error when trying to connect to oracle database. I am using hadoop 1.0.4 version with Oracle JDBC driver. The code piece that is connecting is show below 12/12/18 17:11:35 ...
    Krishna RaoKrishna Rao
    Dec 18, 2012 at 10:17 pm
    Dec 19, 2012 at 9:52 pm
  • Is there a way to execute a hive statement as another user? We are using Spring Batch to run jobs in Java which need to run as a designated user account. Right now, we are dropping to the shell and ...
    Dec 19, 2012 at 7:25 am
    Dec 19, 2012 at 6:32 pm
  • I'm trying to run the Terasort benchmark on an 11 node 2.0.0-cdh4.1.1 cluster. The mappers finish in about an hour and a half, but the single reducer takes 27 hours. I'd like to set the number of ...
    Andrew OttoAndrew Otto
    Dec 17, 2012 at 3:46 pm
    Dec 18, 2012 at 9:56 pm
  • Hi All, I want to drop a hbase table that has 7.3 million rows. When I disable the table in hbase cli, I get the below error ERROR: org.apache.hadoop.hbase.TableNotEnabledException ...
    Dec 18, 2012 at 3:34 pm
    Dec 18, 2012 at 9:44 pm
  • Last month we had some ERROR messages in our hbase log files caused by compactions. The messages looks like this: ####################### 2012-11-26 17:12:08,153 INFO ...
    Elmar GroteElmar Grote
    Dec 17, 2012 at 4:58 pm
    Dec 18, 2012 at 6:41 pm
  • Hi all, I am trying to query HBase using Pig, working version cdh4.1.2 testing with this script: register /usr/lib/hbase/lib/guava-11.0.2.jar register /usr/lib/zookeeper/zookeeper-3.4.3-cdh4.0.1.jar ...
    Kostas PerifanosKostas Perifanos
    Dec 11, 2012 at 1:46 pm
    Dec 12, 2012 at 12:18 am
  • Hi guys!!! Can you please tell me is there any way to run the oozie coordinator from monday-saturday. Other workflow must be executed only on sunday!! Thanks & Regards, Varun Kumar Surneni. --
    Surneni varunraoSurneni varunrao
    Dec 10, 2012 at 3:52 pm
    Dec 11, 2012 at 5:38 pm
  • Folks, i was wondering what version of CDH updates will have https://issues.apache.org/jira/browse/HDFS-2290 We seem to hitting this...is it safe to manually knock off the directory containing the ...
    Inder PallInder Pall
    Dec 3, 2012 at 11:33 am
    Dec 4, 2012 at 7:02 am
  • Can't find much information regarding this. How to arrive at a good value...does changing it effect the write throughput of a cluster. Any info/pointers would be highly appreciated. -- - Inder "You ...
    Inder PallInder Pall
    Dec 4, 2012 at 10:56 am
    Oct 18, 2013 at 7:02 pm
  • Hi, I try to use Cloudera Manager 4.1 Free Edition to install CDH as pseudo-distribution mode but it failed! Following are the error log and my environment, could anyone give me a hand? 1.OS:CentOS ...
    James ChangJames Chang
    Dec 3, 2012 at 10:37 am
    Aug 31, 2013 at 5:32 pm
  • Hi, I have done a new installation of CDH4, the JobTracker is not getting started. The log has following message. Could you please help me out? Regards, Deepak Log Message: 2012-12-03 06:42:08,682 ...
    Kumar, Deepak8Kumar, Deepak8
    Dec 5, 2012 at 1:37 pm
    Feb 21, 2013 at 12:34 am
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176 users for December 2012

Harsh J: 86 posts Serega Sheypak: 51 posts Mark Grover: 27 posts Ben: 24 posts Joey Echeverria: 18 posts Kevin O'dell: 14 posts Marcin Smialek: 13 posts Mike: 13 posts Tony Chong: 13 posts Benc: 12 posts Bryan Beaudreault: 11 posts John H: 11 posts TECHZONE: 11 posts Aaron T. Myers: 10 posts Abhishek: 10 posts Brock Noland: 10 posts Prakash Ranade: 10 posts Robert Kanter: 10 posts Ricky Saltzer: 9 posts Venkat minupala: 9 posts
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