Why we need compression and what are the different compression format supported?

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• In Big Data, when we used the compression, it saves the storage space and reduce the network overhead.
• One can specify the compression coded while writing the data to HDFS ( Hadoop format)
• One can also read the compressed data, for that also we can use compression codec.
• Following are the different compression format support in BigData:

* gzip
* lzo
* bzip2
* Zlib
* Snappy