Top "Cloudera-cdh" questions

For questions specifically about Cloudera's Distribution of Apache Hadoop (CDH).

Spark : how to run spark file from spark shell

I am using CDH 5.2. I am able to use spark-shell to run the commands. How can I run the file(…

scala apache-spark cloudera-cdh cloudera-manager
How to check the Spark version

as titled, how do I know which version of spark has been installed in the CentOS? The current system has …

apache-spark cloudera-cdh
Cannot Read a file from HDFS using Spark

I have installed cloudera CDH 5 by using cloudera manager. I can easily do hadoop fs -ls /input/war-and-peace.txt hadoop …

hadoop apache-spark cloudera-cdh
Incorrect configuration: namenode address dfs.namenode.rpc-address is not configured

I am getting this error when I try and boot up a DataNode. From what I have read, the RPC …

hadoop hdfs cloudera-cdh
Class com.hadoop.compression.lzo.LzoCodec not found for Spark on CDH 5?

I have been working on this problem for two days and still have not find the way. Problem: Our Spark …

apache-spark cloudera-cdh hadoop-lzo
How to kill a mapred job started by hive?

I'm working by CDH 5.1 now. It starts normal Hadoop job by YARN but hive still works with mapred. Sometimes a …

hadoop mapreduce hive yarn cloudera-cdh
Datastax Cassandra Driver throwing CodecNotFoundException

The exact Exception is as follows com.datastax.driver.core.exceptions.CodecNotFoundException: Codec not found for requested operation: [varchar <…

guava datastax cloudera-cdh datastax-java-driver spark-cassandra-connector
Error in Hive Query while joining tables

I am unable to pass the equality check using the below HIVE query. I have 3 table and i want to …

join hadoop hive hiveql cloudera-cdh
Impala: Show tables like query

I am working with Impala and fetching the list of tables from the database with some pattern like below. Assume …

hive cloudera hiveql cloudera-cdh impala
Namenode HA (UnknownHostException: nameservice1)

We enable Namenode High Availability through Cloudera Manager, using Cloudera Manager >> HDFS >> Action > Enable High …

hadoop hdfs cloudera cloudera-manager cloudera-cdh