Task Tracker not starting

Hi, Im trying to build a Fresh hadoop cluster. Im using cloudera manager 5.5.1 and CDH 5.5.2. Hdfs is up and running. When i start Map Reduce (MR1) job tracker is up but all task trackers are not starting. error: Command aborted because of exception: Command timed-out after 150 seconds

Spark streaming

Hi, I'm pulling some twitter data and trying to save the data into persistent table.This is the code written. case class Tweet(createdAt:Long, text:String) twt.map(status=> Tweet(status.getCreatedAt().getTime()/1000, status.getText()) ).foreachRDD(rdd=>

spark streaming

Hi, Im new to Spark. I need to pull Twitter data based on some keyword using scala and store them in spark sql table. Can anyone help me out to work on this? Im using scala 1.6.0 Thanks and regrads, siva

spark streaming

Hi , Im trying to pull data from twitter and do some processing out of it. I found this code import org.apache.spark.streaming._import org.apache.spark.streaming.twitter._import org.apache.spark.storage.StorageLevelimport scala.io.Sourceimport scala.collection.mutable.HashMapimport

Re: failed to start namenode

Hi Daniel, My host is up and running. On 11/20/15, Daniel Haviv <danielru...@gmail.com> wrote: > Are you sure the host is up? > > On Friday, 20 November 2015, siva kumar <siva165...@gmail.com> wrote: > >> Hi Sandeep, >>

Re: failed to start namenode

cloudera manager then logs can be seen > found out on screen as well. > > On Thu, Nov 19, 2015 at 11:36 AM, siva kumar <siva165...@gmail.com> wrote: > >> Hi Sandeep, >> The log is not getting generated for the name >> node. >> >>

failed to start namenode

Hi Folks, I'm trying to install a fresh hadoop cluster. But then,namenode is not is not starting up because of which hdfs service is not started during my first run. Can anyone help me out? I'm trying this using parcels(CDH-5). Any help?

Re: failed to start namenode

Hi Sandeep, The log is not getting generated for the name node. On Wed, Nov 18, 2015 at 5:53 PM, sandeep das <yarnhad...@gmail.com> wrote: > At least share some excerpts from log of name node log file. > > On Wed, Nov 18, 2015 at 5:46 PM, siva kumar <si

Hdfs service failed to start

Hi Folks, My first run fails while installing CDH-5 (parcels) using cloudera manager. Below is the error message . Service did not start successfully; not all of the required roles started: Service has only 0 NameNode roles running instead of minimum required 1. Any help?

Re: unknown host exception

com> wrote: > Can you ping to that host? Maybe your computer is unable to resolve that > hostname. Add the IP to your hosts file. > > On Fri, Sep 25, 2015 at 9:02 AM, siva kumar <siva165...@gmail.com> wrote: > >> Hi Folks, >> Im trying to write so

unknown host exception

Hi Folks, Im trying to write some data into hbase using pentaho. Im facing issue in connecting to hbase using hbase outpout step. com.google.protobuf.serviceexception: java.net.unknownhostexception: unlnown host : x Any suggestions? Thanks in advance. siva

cassandra + tableau

Hi Folks, Can anyone suggest me the open source connector to connect tableau to cassandra database. ? Thanks, sivakumar.c

Why Only Mongodb suits MEAN techstack

Hi folks, MEAN (Mongodb,Express,Angular.js,Node.js) techstack is the recent buzz in the market for building Web Applications. My confuison is, why only Mongodb suits the best when compared to other NoSql databases like(hbase,cassandra). If Mongodb is best suited, then why ? Also, can

Re: hadoop yarn

at 11:45 AM, Rohith Sharma K S rohithsharm...@huawei.com wrote: Refer below link, http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Thanks Regards Rohith Sharma K S *From:* siva kumar [mailto:siva165...@gmail.com] *Sent:* 20 January 2015