5. Configure Hadoop

Use the HDP Utility script to calculate memory configuration settings. You must update the memory/cpu settings in yarn-site.xml and mapred-site.xml

Paths have changed in HDP 2.2. Make sure you remove old path specifications from hadoop-env.sh, such as:

export JAVA_LIBRARY_PATH=/usr/lib/hadoop/lib/native/Linux-amd64-64

If you leave these paths in your hadoop-env.sh file, the lzo compression code will not load, as this is not where lzo is installed.

Use the HDP Utility script to calculate memory configuration settings. You must update the memory/cpu settings in yarn-site.xml and mapred-site.xml

Paths have changed in HDP 2.2. make sure you remove old path specifications from hadoop-env.sh, such as:

export JAVA_LIBRARY_PATH=/usr/lib/hadoop/lib/native/Linux-amd64-64

If you leave these paths in your hadoop-env.sh file, the lzo compression code will not load, as this is not where lzo is installed.

Use the HDP Utility script to calculate memory configuration settings. You must update the memory/cpu settings in yarn-site.xml and mapred-site.xml

Paths have changed in HDP 2.2. make sure you remove old path specifications from hadoop-env.sh, such as:

export JAVA_LIBRARY_PATH=/usr/lib/hadoop/lib/native/Linux-amd64-64

If you leave these paths in your hadoop-env.sh file, the lzo compression code will not load, as this is not where lzo is installed.