Thank you Takeshi for sharing the info. I agree with Patrick and you that there is no point in adding more codec unless it is showing better performance results (at least with some work loads on some platforms). The performance of GZIP depends upon its implementation on the platforms. Will do some performance tests to see how it is performing compared to the existing codec in spark.

On 9/12/16 9:19 PM, Takeshi Yamamuro wrote:
Hi,

Have you seen https://issues.apache.org/jira/browse/SPARK-4633 ?

// maropu

On Mon, Sep 12, 2016 at 11:00 PM, Nasser Ebrahim <enas...@linux.vnet.ibm.com <mailto:enas...@linux.vnet.ibm.com>> wrote:

    Hi,

    Can we use GZIP compression for internal data such as RDD
    partitions, broadcast variables and shuffle outputs so that user
    will have more choice compared to the available LZ4, LZF and
    Snappy?  Is there any specific reason we are not supporting the
    JDK inbuilt compression? If not, shall I create a JIRA to get this
    implemented.

    Thank you,
    Nasser Ebrahim




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Takeshi Yamamuro

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