Default file locations for package installations

The default location of the files depends on how DataStax Enterprise is installed.

Default directories for cassandra.yaml and dse.yaml


Directories	Description
/etc/dse/cassandra/cassandra.yaml	cassandra.yaml is the main configuration file for the DataStax Enterprise database with default configuration for all nodes.
/etc/dse/dse.yaml	dse.yaml is the main configuration file for DataStax Enterprise.

Default database directories


Directories	Description
/var/lib/cassandra/data	commitlog, data, hints, saved_caches directories
/var/log/cassandra	Log files, including: audit directory debug.log gremlin.log solrvalidation.log system.log You can change logging locations.
/var/run/cassandra	Database process ID (pid) directory
/usr/share/dse/cassandra	Environment settings
/usr/share/dse/cassandra/tools	Tools for testing, starting, using SSTables, plus YAML examples.
/etc/dse/cassandra	Property files and cqlshrc samples including: cassandra-env.sh cassandra-rackdc.properties cassandra-topology.properties cassandra-topology.yaml commitlog_archiving.properties cqlshrc.sample logback.xml
/etc/init.d	Set node type and other server configuration

Default DSEFS data directory

The default location for the DSEFS data directory is /var/lib/dsefs.

Default DSE Graph directories


Directories	Description
/etc/dse/graph/gremlin-console/conf/remote.yaml	Gremlin console configuration for connection to the Gremlin Server, including Kerberos authentication and SSL encryption.
/etc/dse/graph/logback-gremlin-server.xml	GremlinServerFileAppender

Default DSE Search directories


Directories	Description
/usr/share/dse/resources/solr/conf	Solr configuration
/usr/share/dse/demos/wikipedia	Search - Wikipedia demo
/usr/share/dse/solr/web/demos/wikipedia	Search - Wikipedia demo with Tomcat
/var/log/cassandra	Search log messages are in the system.log file

Default Spark directories


Directories	Description
/etc/dse/spark/	spark-env.sh, spark-defaults.conf, spark-daemon-defaults.conf
/usr/share/dse/spark/lib	Spark library
/var/log/spark	Spark Master and Worker logs
/usr/share/dse/spark/spark-jobserver	Spark Jobserver
/usr/share/dse/demos/portfolio_manager	Spark Portfolio Manager demo
/var/lib/dsefs	The default directory to store the DSE File System data.

Default location for the logback configuration file


Directories	Description
/etc/dse/cassandra/logback.xml	logback.xml is the logback configuration file

Default location audit logs


Directories	Description
/etc/dse/tomcat/conf/server.xml/etc/dse/tomcat/conf/web.xml	Default location for Tomcat server logs for DSE Search.
/var/log/cassandra/dropped_audit_events.log	Default location for dropped events logs.

Default DSE OpsCenter directories

See the DSE OpsCenter documentation.

Default DSE Multi-Instance configuration files

With DSE Multi-Instance, multiple DataStax Enterprise nodes reside on a single host machine. To segregate the configuration for each DataStax Enterprise node, node-specific directory structures are used to store configuration and operational files. For example, in addition to /etc/dse/dse.yaml, the DSE Multi-Instance dse.yaml files are stored in /etc/dse-nodeId/dse.yaml locations. The server_id option is generated in DSE Multi-Instance /etc/dse-nodeId/dse.yaml files to uniquely identify the physical server on which multiple instances are running and is unique for each database instance. See DSE Multi-Instance server_id.


Directories	Description
/etc/dse	/etc/dse/dse.yaml is the primary configuration file for DataStax Enterprise
/etc/dse-node1	/etc/dse-node1/dse.yaml is the configuration file for the DataStax Enterprise node in the dse-node1 directory
/etc/dse-node2	/etc/dse-node2/dse.yaml is the configuration file for the DataStax Enterprise node in the dse-node2 directory

For a comprehensive list of file locations in a DSE Multi-Instance cluster, see directories for DSE Multi-Instance.

Default DSE Multi-Instance generated directories

With DSE Multi-Instance, these directories are created on the host machine for each node.


Purpose	Directories	Description
DSE Multi-Instance root directory	/etc/defaults	Each DSE Multi-Instance host machine has the /etc/defaults root directory. This default location is not configurable.
DataStax Enterprise node type	/etc/defaults/`dse-nodeId`	Defines the node type (transactional, search, analytics, graph, and so on).
DataStax Enterprise configuration file	/etc/`dse-nodeId`/dse.yaml	A configuration file for each node.
DataStax Enterprise process ID (pid) directory	/var/run/`dse-nodeId`.`dse-nodeId`.pid	The default DataStax Enterprise process ID (pid) directory for each node.
Database configuration	/etc/`dse-nodeId`/cassandra/cassandra.yaml	A configuration file for each node.
Database data directory	/var/lib/`dse-nodeId`/data	The root directory for storing data on each node. Define with `dse add-node --data-directory=directory ...`
Database log files	/var/log/`dse-nodeId`/cassandra	The default directory where the audit.log, output.log, solrvalidation.log, and system.log log files are stored for each node. Define with `dse add-node --logs-directory ...`
Database pid directory	/var/run/`dse-nodeId`	Database process ID (pid) directory for each node.
Caches directory	/var/lib/`dse-nodeId`/saved_caches	The table key and row caches directory for each node. Define with `dse add-node --saved-caches-directory=directory ...`
Commit log files	/var/lib/`dse-nodeId`/commitlog	The commit log directory for each node. Define with `dse add-node --commit-directory=directory ...`
Hints directory	/var/lib/`dse-nodeId`/hints	The hints directory for each node. Define with `dse add-node --hints-directory=directory ...`
Spark configuration file	/etc/`dse-nodeId`/spark/spark-env.sh	Spark configuration file spark-env.sh for each node.
Spark Worker data directory	/var/lib/`dse-nodeId`/spark/worker	The data directory for Spark Worker for each node. Define with `dse add-node --spark-worker-directory=directory ...`
Spark Worker local node directory	/var/lib/`dse-nodeId`/spark/rdd	The local directory for Spark Worker for each node. Define with `dse add-node --spark-local-directory=directory ...`
Spark logs directory	/var/log/`dse-nodeId`/spark	The Spark logs directory for each node. Define with `dse add-node --spark-log-directory=directory ...`
Logback configuration	/etc/`dse-nodeId`/cassandra/logback.xml	Logback configuration file for each node.
Solr configuration	/etc/`dse-nodeId`/solr	Solr configuration files for each node.
Tomcat log files	/var/log/`dse-nodeId`/tomcat	The directory for Tomcat server logs. Define with `dse add-node --tomcat-logs=directory` ...

Licenses and other documents

The default location is installation_location. Also see DataStax Enterprise third-party software.