Optimize mountable HDFS

You can consider certain recommendations to optimize the mountable HDFS.

  • Cloudera recommends that you use the -obig_writes option on kernels later than 2.6.26. This option allows for better performance of writes.
  • By default, the CDH package installation creates the /etc/default/hadoop-fuse file with a maximum heap size of 128 MB. You might need to change the JVM minimum and maximum heap size for better performance. For example:
    export LIBHDFS_OPTS="-Xms64m -Xmx256m"

    Be careful not to set the minimum to a higher value than the maximum.