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234 discussions - 909 posts

  • HI, I am trying to install the CDH4 on ubuntu OS. I have installed the java-7-oracle on path: /usr/lib/jvm/java-7-oracle. I have set the path etc/environment file as ...
    Mukhtaj KhanMukhtaj Khan
    Oct 21, 2012 at 3:14 pm
    May 25, 2013 at 3:29 pm
  • Hi, I'm trying to understand and run the wordcount example, but unfortunately I cannot. (1) First of all when I install the virtual machine and run the command: hadoop dfs -ls /users I get an error ...
    Oct 27, 2012 at 6:17 pm
    Oct 30, 2012 at 10:03 pm
  • Hi Nicolas, What are the errors you are getting in the logs while trying to restart HBase? -- Kevin O'Dell Customer Operations Engineer, Cloudera --
    Kevin O'dellKevin O'dell
    Oct 30, 2012 at 2:43 pm
    Nov 2, 2012 at 1:50 pm
  • Hi, I want to appear for CCDH Certification. So, could anyone kindly let me know the price and the process? And I am planing to give it by November 1st week, 2012 as in Bangalore, India Cloudera is ...
    Oct 4, 2012 at 3:31 pm
    Jul 31, 2013 at 3:02 am
  • Hi, We've just installed a CDH cluster using cloudera manager on Ubuntu. We are running Oozie 3.2.0-cdh4.1.1. I created an HDFS directory called /sharelib which has all the Hive jar's directly in it ...
    Jurgen Van GaelJurgen Van Gael
    Oct 31, 2012 at 12:03 pm
    Nov 5, 2012 at 6:30 pm
  • Nitin, Would you mind posting the resolved action configuration from Oozie web UI? Thx -- Alejandro --
    Alejandro AbdelnurAlejandro Abdelnur
    Oct 19, 2012 at 7:54 pm
    Oct 24, 2012 at 1:39 pm
  • Hi, I have installed CDH4.1 in CentOS box. Following is the installation structure: ================================================================== [root@ip-10-4-179-213 ~]# ll /usr/lib/ total 72 ...
    Subroto SanyalSubroto Sanyal
    Oct 11, 2012 at 8:22 am
    Oct 16, 2012 at 9:21 pm
  • Can someone help with setting up Hue LDAP using Cloudera Manager 4.1? Here are my settings just as outlined in the documentation: ldap_url: ldap://ldap-ec2.example.com base_dn: "DC=example,DC=com" ...
    Oct 31, 2012 at 10:03 pm
    Nov 9, 2012 at 4:35 pm
  • Hello everyone, I installed cdh 4.1 and when I try to run WordCount Program I get the following error, bash-4.1$ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples-2.0.0-cdh4.1.0.jar ...
    Mateen KhalilMateen Khalil
    Oct 17, 2012 at 12:02 pm
    Dec 11, 2012 at 3:47 am
  • I am having trouble with CDH4.1 and the new Oozie UI. We created the share lib but we keep getting the following when running a pig script: "Pig version before 0.8" Yet, we are currently using Pig ...
    Raquenel GarciaRaquenel Garcia
    Oct 17, 2012 at 12:52 am
    Nov 13, 2012 at 9:18 pm
  • How can we avoid all Disk Spills completely, Optimized values of io.sort.mb and io.sort.spill.percent will reduce disk spills to minimum, but have at least one Disk Spill. Can we store all output to ...
    Kapil bhosaleKapil bhosale
    Oct 9, 2012 at 9:38 am
    Oct 11, 2012 at 4:44 am
  • Hi Romit, How long are you waiting to allow the failover to happen? Is there anything in the ZKFC logs on the failed node? -Todd -- Todd Lipcon Software Engineer, Cloudera --
    Todd LipconTodd Lipcon
    Oct 18, 2012 at 5:27 pm
    Mar 13, 2013 at 10:46 pm
  • On behalf of the Impala team at Cloudera, I am happy to announce the beta release of Cloudera Impala, the industry’s first real time query framework for Hadoop. Impala is an open source real-time ...
    Wendy TurnerWendy Turner
    Oct 24, 2012 at 2:31 pm
    Oct 27, 2012 at 4:24 am
  • I get the following error for my sqoop export that I ran through oozie. We are on CDH.4.0.1. Any help? java.util.NoSuchElementException at java.util.AbstractList$Itr.next(AbstractList.java:350) at ...
    Mark GoldenMark Golden
    Oct 24, 2012 at 7:00 am
    Oct 25, 2012 at 11:58 pm
  • Hi,, Where can i find the core-default.xml and hdfs-defalt.xml file? we use CDH4.0 and was installed with RPM package(NOT TARBALL). Best R. beatls --
    Xiang HuaXiang Hua
    Oct 16, 2012 at 5:18 am
    Oct 16, 2012 at 5:24 pm
  • I'm running Nutch 2 against a CDH3 cluster. I have HDFS, MapReduce, HBase, and Zookeeper installed. Nutch is working fine, and I can see space being used in my HDFS. However, none of the nodes show ...
    Bai ShenBai Shen
    Oct 9, 2012 at 7:13 pm
    Oct 10, 2012 at 9:54 pm
  • Hi, I have secure HBase 1 node cluster. I can work nicely with the HBase shell but, when I try a to use a Java HBase client I end up with the error: java.io.IOException: Call to ...
    Subroto SanyalSubroto Sanyal
    Oct 19, 2012 at 7:44 am
    Apr 11, 2014 at 7:29 pm
  • hi, I have a HA enabled Namenode cluster setup using cdh4 on CentOS6.0. I have 2 namenodes(hadoop1 and hadoop3) running in the cluster. The automatic failover seemed to work when i killed the ...
    Xiang HuaXiang Hua
    Oct 25, 2012 at 4:12 pm
    Oct 29, 2012 at 8:15 pm
  • Did someone try the monitoring? Am I missing anything? http://archive.cloudera.com/cdh/3/flume-ng/FlumeUserGuide.html#json-reporting Here is flume-ng version:Flume 1.2.0-cdh3u5 Here is ps ...
    Oct 23, 2012 at 8:16 pm
    Oct 25, 2012 at 6:46 pm
  • kindly the mapred healthChecker script always get error and label the data node un_healthy even if the datanode service up and running the mapred healthChecker script is the default one ...
    Muhamed GhareebMuhamed Ghareeb
    Oct 4, 2012 at 5:45 pm
    Oct 4, 2012 at 7:41 pm
  • I have a small cluter, 1 namenode machine with 4 datanodes (each is multi disk with 1.5 gigs ram). When I running mapreduce job (via hive) with the capacity scheduler it will run the 1 app master on ...
    James PettyjohnJames Pettyjohn
    Oct 1, 2012 at 7:06 pm
    Nov 4, 2012 at 7:12 pm
  • hi, we test the journal node for namenode HA, when "./hadoop namenode -format', get error messages below: 12/10/30 03:17:10 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = ...
    Xiang HuaXiang Hua
    Oct 29, 2012 at 7:31 pm
    Oct 30, 2012 at 6:55 am
  • Hello, Need help!! A new datanode in the cluster is not reporting it to the standby namenode. The configuration files are the same as the other datanodes. the slaves file and the include files has ...
    Oct 25, 2012 at 12:21 am
    Oct 25, 2012 at 3:16 am
  • Hi, I had problem on our dev cluster that I'd definitely like to avoid on production. After restart of all cluster daemons I couldn't start namenodes. There is HA, with Quorum-based Storage. *What ...
    Marcin SmialekMarcin Smialek
    Oct 24, 2012 at 1:43 pm
    Oct 24, 2012 at 3:17 pm
  • we have an issue in our cluster where we set the quota for a user dir to 100G ( 300G with replication) but the hdfs starts complaining as quota exceeded randomly at 10% , 70% and 90% we assumed this ...
    Jabir AhmedJabir Ahmed
    Oct 8, 2012 at 11:02 am
    Oct 22, 2012 at 7:52 pm
  • 2012-10-17 15:28:00,500 WARN AuthenticationFilter:341 - AuthenticationToken ignored: AuthenticationToken expired 2012-10-17 15:28:00,503 WARN AuthenticationFilter:341 - AuthenticationToken ignored ...
    Vishal rajanVishal rajan
    Oct 17, 2012 at 10:34 am
    Oct 22, 2012 at 3:48 pm
  • hi, I have setup a stage hadoop cluster , with kerberos auth .I have configured everything as per the cloud era document but still facing issues in starting the name node.It would be of great help if ...
    Vishal rajanVishal rajan
    Oct 4, 2012 at 5:34 am
    Oct 4, 2012 at 12:28 pm
  • Hello, I tried to run HBase with shortcircuit enable hdfs-site.xml : dfs.block.local-path-access.user = hbase hbase-site.xml : dfs.client.read.shortcircuit = true But running YCSB tests I get some ...
    Damien HardyDamien Hardy
    Oct 31, 2012 at 12:23 pm
    Nov 2, 2012 at 12:39 pm
  • Hi guys, I need your help for understand correctly Namenode failover. I want get up an HDFS with HA Namenode, so I set these properties in all configuration files (hdfs-site.xml) as follow ...
    Giovanni MarzulliGiovanni Marzulli
    Oct 22, 2012 at 9:23 am
    Nov 2, 2012 at 9:48 am
  • Hello Experts, I have set the max map tasks and max reduce task 18 on my cluster. The total number of datanode on the cluster is 8 and while executing and the job on cluster, the map and reduce ...
    Romit SinghaiRomit Singhai
    Oct 30, 2012 at 4:28 am
    Oct 30, 2012 at 9:43 pm
  • Hello, I have installed CDH4 and have a a small cluster running (MRV1 & Hive) (RHEL version). I am able to login to Hive and Create/Load tables. I am using postgres as the database for Hive ...
    Oct 27, 2012 at 6:53 pm
    Oct 30, 2012 at 2:29 pm
  • Is there a way to gracefully shutdown yarn services? --
    Willy ChangWilly Chang
    Oct 25, 2012 at 6:47 pm
    Oct 29, 2012 at 8:02 pm
  • Hi, I am trying to create the tmp directory according to manual and applying the following command sudo -u hdfso hadoop fs -mkdir /tmp error: '/tmp' : Input/output error Could someone tel me how to ...
    Mukhtaj KhanMukhtaj Khan
    Oct 24, 2012 at 3:16 pm
    Oct 29, 2012 at 5:51 am
  • Hi all, I’m completely new to cloudera and hadoop but I’ve been following this tutorial (https://www.cloudera.com/blog/2012/09/analyzing-twitter-data-with-hadoop) and all has been going well, however ...
    Paul CoulterPaul Coulter
    Oct 22, 2012 at 3:09 pm
    Oct 23, 2012 at 10:37 am
  • hello i have installed cdh4 with 1 namenode, 1 secondary name node, and 3 data nodes. all are up and running fine, and i can access the UI through the web browser. i am new to cdh, i dont know how to ...
    Umer khayamUmer khayam
    Oct 12, 2012 at 7:22 am
    Oct 15, 2012 at 9:37 am
  • Hi all, We are having a Kerberos authentication in our Hadoop cluster. Can any one tell me how to integrate with eclipse. Any link or document for this would be great. Eclipse plugin for Hadoop ...
    Oct 4, 2012 at 1:36 pm
    Oct 7, 2012 at 4:21 am
  • Hello, I'm running cdh4.0.1 with namenode and hbase master having high availability in standby namenode. The following error pops up in standby namenode logs. Namenode is not running. It's not ...
    Oct 5, 2012 at 6:07 pm
    Oct 6, 2012 at 1:03 am
  • Hi everyone In CDH4.1 I have initially added one host. Later on I tried adding another two to the cluster to be slaves. I fill in the IP adresses and go through the process of declaration up to the ...
    Oct 31, 2012 at 6:48 pm
    Nov 6, 2012 at 1:01 pm
  • Hi, I'm using Cloudera 4.1.1, and i'm experimenting with Pig to save to multiple output files. I'm using Piggybank for that, as such: grunt REGISTER 'hdfs:///lib/piggybank.jar'; grunt a = load ...
    Bart VerwilstBart Verwilst
    Oct 25, 2012 at 1:01 pm
    Oct 29, 2012 at 3:00 pm
  • Hi, Iüm trying to run the wordcount example on the cloudera virtual machine, but it hangs and it doen't finish. The input file is 2 small file with around 10 records in each. The comand that i use as ...
    Oct 23, 2012 at 4:28 pm
    Oct 23, 2012 at 10:17 pm
  • Hi Experts, I have a quick question regarding the role of fail over controller in HA. If the node running one of the instance of the namenode which is currently active goes off the network, will the ...
    Romit SinghaiRomit Singhai
    Oct 21, 2012 at 2:05 am
    Oct 23, 2012 at 6:00 pm
  • Hello, When I start one of my NameNode host using HDFS HA (running services : NameNode + JournalNode + Zookeeper + HBase master + ZKFC) ZKFC service always fail to start because zookeeper service is ...
    Damien HardyDamien Hardy
    Oct 9, 2012 at 9:18 am
    Oct 22, 2012 at 3:56 pm
  • I am trying to use log4j2 Flume Embedded Appender in PIG UDF function to send logs from data nodes to HDFS. My LogManager works fine outside PIG as a standalone Java program. However, I could not ...
    Oct 18, 2012 at 6:53 pm
    Oct 19, 2012 at 3:34 pm
  • sometime mapred process won't die even after the job being completed. how can i fix this -- --Regards Vishal Rajan --
    Vishal rajanVishal rajan
    Oct 16, 2012 at 1:03 pm
    Oct 17, 2012 at 4:57 am
  • Hi All, I did research on this but no help so far. I used to run embedded Pig (local and mapreduce), downloaded from Apache Pig. Everything used to work fine on local and 4 nodes cluster. Because of ...
    Oct 14, 2012 at 10:02 am
    Oct 17, 2012 at 12:03 am
  • I setup a small 3 node cluster using free CM4 on Ubuntu 12.04. The install worked well, so the first thing I did was install the samples for Hive using Hue as the default 'admin' user. Rather ...
    Brad SchickBrad Schick
    Oct 5, 2012 at 6:46 pm
    Oct 15, 2012 at 5:50 pm
  • Hello Cloudera list, We recently setup a new CDH 4.1 cluster on Debian Squeeze using the Debian packages, and we are unable to use the native zlib compression libraries that should be included in ...
    Brandon VargoBrandon Vargo
    Oct 5, 2012 at 6:56 pm
    Oct 10, 2012 at 9:14 pm
  • Anybody uses jython or is this the dead project? Using jython, I want to get the rows from hbase using start/stop row_key and print the columns. Any thoughts on this? --
    Oct 5, 2012 at 2:46 am
    Oct 8, 2012 at 7:11 pm
  • Hello, I am trying to determine why the SLES RPMs are missing the standard start scripts that the tarballs are not (please see the list below). Can anyone tell me where I should be looking for the ...
    Shawn HigginsShawn Higgins
    Oct 2, 2012 at 4:10 pm
    Oct 4, 2012 at 9:22 pm
  • I got the following exceptions on starting flume agent using file channel: 2012-10-04 10:44:19,397 INFO properties.PropertiesFileConfigurationProvider: Creating channels 2012-10-04 10:44:19,398 ERROR ...
    Oct 4, 2012 at 3:53 pm
    Oct 4, 2012 at 5:17 pm
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191 users for October 2012

Harsh J: 56 posts Todd Lipcon: 43 posts Alejandro Abdelnur: 31 posts Joey Echeverria: 26 posts Vishal rajan: 23 posts Aaron T. Myers: 21 posts Nitin: 21 posts Romit Singhai: 19 posts Zhu Wayne: 19 posts Willy Chang: 18 posts Xiang Hua: 18 posts Kevin O'dell: 16 posts Nicolas Maillard: 16 posts Subroto Sanyal: 16 posts Abhishek dodda: 15 posts Brock Noland: 15 posts Karunakar: 15 posts Adam Szendrei: 14 posts Andy Isaacson: 14 posts Damien Hardy: 13 posts
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