Top "Sequencefile" questions

A SequenceFile is a Hadoop binary file containing key/value pairs.

hadoop mapreduce: java.lang.UnsatisfiedLinkError: org.apache.hadoop.util.NativeCodeLoader.buildSupportsSnappy()Z

I am trying to write a snappy block compressed sequence file from a map-reduce job. I am using hadoop 2.0.0-cdh4.5.0, …

java hadoop mapreduce sequencefile snappy
Write and read raw byte arrays in Spark - using Sequence File SequenceFile

How do you write RDD[Array[Byte]] to a file using Apache Spark and read it back again?

scala hadoop hdfs apache-spark sequencefile
Advantages of Sequence file over hdfs textfile

What is the advantage of Hadoop Sequence File over HDFS flat file(Text)? In what way Sequence file is efficient? …

hadoop hdfs sequencefile
Saving RDD as sequence file in pyspark

I am able to run this script to save the file in text format, but when I try to run …

python apache-spark pyspark sequencefile
Reading Sequence File in PySpark 2.0

I have a sequence file whose values look like (string_value, json_value) I don't care about the string value. …

apache-spark pyspark sequencefile
How to load data from HDFS sequencefile in python

I have a map reduce program running to read the HDFS file as below: hadoop jar /opt/mapr/hadoop/hadoop-0.20.2/…

python hadoop mapreduce hive sequencefile
How to copy the output of -text HDFS command into another file?

Is there any way we can copy text content of hdfs file into another file system using HDFS command: hadoop …

hadoop hdfs sequencefile
Converting CSV to SequenceFile

I have a CSV file which I would like to convert to a SequenceFile, which I would ultimately use to …

hadoop mahout sequencefile