Configuration¶

The Nomic configuration can be divided into 2 parts:

environment configuration
application configuration

Environment configuration¶

The environment configuration is about setting few important envirnoment variables:

$JAVA_HOME: path to java JRE which will be used
$NOMIC_HOME: point to place where is Nomic application installed.
$NOMIC_CONF: path to nomic.conf file. The default value is $NOMIC_HOME/conf/nomic.conf but you can specify alternative file.
$NOMIC_OPTS: Java runtime options used when Nomic application is executed

All these environment variables can be set as global env. variables via system or you can override them in $NOMIC_HOME/conf/setenv.

Application configuration¶

The application configuration is more detailed configuration that is happening in the nomic.conf file. The configuration file is following HOCON format and Nomic application will look for this file in the $NOMIC_HOME/conf folder.

This example show all of the default values:

################################################################################
# General Nomic configuration
################################################################################

# user what will be used by Nomic application. Also folders and files in HDFS
# will be owned by this used.
#
# default value is system user you're logged with
nomic.user = ${user.name}

# Nomic home on FileSystem where nomic will look for configuration, write
# logs etc.
#
# default value is in user's home folder as '.nomic' folder
nomic.home = ${user.home}"/.nomic"

# This is home folder that will be used by Nomic in HDFS.
#
# default value is hdfs://server/user/{user.name}
nomic.hdfs.home = "/user/"${nomic.user}

# Point to 'app' folder in HDFS where are all boxes deployed
#
# default value is hdfs://server/user/{user.name}/app
nomic.hdfs.app.dir = ${nomic.hdfs.home}"/app"

# Point to 'repository' folder in HDFS where Nomic will store metadata
#
# default value is hdfs://server/user/{user.name}/.nomic
nomic.hdfs.repository.dir = ${nomic.hdfs.home}"/.nomic"


################################################################################
# HDFS configuration
################################################################################

# What kind of adapter to HDFS will be used. The possible values are 'hdfs' and 'simulator'.
# Simulator just simulate HDFS on your FileSystem. It's useful for debuging etc..
hdfs.adapter = "hdfs"

# The directory where simulator adapter will store all files. Make sence to set it
# if you set adater to 'simulator'.
hdfs.simulator.basedir = ${nomic.home}"/hdfs"

# Point to Hadoop core configuration file. It's relevant for real 'hdfs' adapter.
hdfs.core.site = ${nomic.home}"/conf/core-site.xml"

# Point to Hadoop HDFS configuration file. It's relevant for real 'hdfs' adapter.
hdfs.hdfs.site = ${nomic.home}"/conf/hdfs-site.xml"



################################################################################
# HIVE configuration
################################################################################

# host for Hive JDBC
hive.host = "localhost:10000"

# this is JDBC connection string to HIVE
hive.jdbc.url = "jdbc:hive2://"${hive.host}

# The default HIVE schema
hive.schema = ${nomic.user}

# Username for HIVE connection
hive.user = ${nomic.user}

# Password for HIVE connection
hive.password = ""



################################################################################
# OOZIE configuration
################################################################################

# URL that point to oozie server where is Oozie REST API available. It's
# just hostname and port without `/oozie/v1` postfix. This postfix is handled
# by application itself
oozie.url = "https://localhost:11000"

# Job tracker URL that will be used as pre-filled value when you submitting
# Oozie job (coordinator)
oozie.jobTracker = "localhost:8032"