HDFS Forum

Compression configuration

  • #23010
    bruno bonnin


    I have a running cluster, and I want to update the mapreduce compression properties :
    – mapred.compress.map.output = true
    – mapred.map.output.compression.codec = org.apache.hadoop.io.compress.SnappyCodec
    – mapred.output.compress = true
    – mapred.output.compression = org.apache.hadoop.io.compress.SnappyCodec

    Is there a way to do this configuration using Ambari ? I cannot see these parameters in mapred-site.xml and the checkbox of “Snappy compression” is disabled in Ambari :-(

    Thanks for any help !


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  • Author
  • #23011
    Larry Liu

    Hi, Bruno,

    What you can do is to put the value into the Custom MapReduce Configs under mapreduce advanced config.

    Hope this helps


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