setsymlinks.md

1. Create folders in /opt

   mkdir /opt/hadoop
   mkdir /opt/spark
   mkdir /opt/elasticsearch
   mkdir /opt/hbase
   chown aml:aml /opt/hadoop
   chown aml:aml /opt/spark
   chown aml:aml /opt/elasticsearch
   chown aml:aml /opt/hbase
   

2. Inside the /tmp/downloads folder, extract all downloaded services.

   tar -xvfz each-tar-filename
   

3. Move extracted services to their folders.

   sudo mv /tmp/downloads/hadoop-{{> hdfsversionnum}} /opt/hadoop/
   sudo mv /tmp/downloads/spark-{{> sparkversionnum}} /opt/spark/
   sudo mv /tmp/downloads/elasticsearch-{{> elasticsearchversionnum}} /opt/elasticsearch/
   sudo mv /tmp/downloads/hbase-{{> hbaseversionnum}} /opt/hbase/
   

   Note: Keep version numbers, if you upgrade or downgrade in the future just create new symlinks.

4. Symlink Folders

   sudo ln -s /opt/hadoop/hadoop-{{> hdfsversionnum}} /usr/local/hadoop
   sudo ln -s /opt/spark/spark-{{> sparkversionnum}} /usr/local/spark
   sudo ln -s /opt/elasticsearch/elasticsearch-{{> elasticsearchversionnum}} /usr/local/elasticsearch
   sudo ln -s /opt/hbase/hbase-{{> hbaseversionnum}} /usr/local/hbase
   sudo ln -s /home/aml/pio /usr/local/pio