Category: Java

Compression in Hadoop

Hadoop has many standard compression codecs available, namely DEFLATE (.deflate) ,gzip (.gz), bzip2 (.bz2) ,LZO (.lzo),LZ4 (.lz4),Snappy (.snappy) . Only bzip2 is splittable , it very important for
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Avro Schmea

Avro Supports both primitive and complex data types Primitive data types null, boolean, int, long, float, double, string, bytes Complex data types array – ordered collection of objects
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