Starting the DataStax Enterprise service when DataStax Enterprise was installed from
the DataStax Installer with the Services option or from a package.
Packaged installations provide start-up scripts in /etc/init.d
for starting DataStax Enterprise as a service.
For Cassandra-only nodes in mixed-workload clusters or BYOH nodes, skip step 1.
The following entries set the type of node:
- HADOOP_ENABLED=1 designates the node as a DSE Hadoop
node and starts the Hadoop Job Tracker and Task Tracker services.
- SOLR_ENABLED=1 starts the node as DSE Search node.
- SPARK_ENABLED=1 starts the node as DSE Enterprise Spark
node.
Note: No entry is the same as disabling it.
Procedure
-
Edit the /etc/default/dse file, and then edit the
appropriate line in this file, depending on the type of node you want:
- Cassandra nodes
-
Transactional
nodes.
HADOOP_ENABLED=0
SOLR_ENABLED=0
SPARK_ENABLED=0
- BYOH nodes
-
A Cassandra node that runs DSE Analytics with a separate Hadoop
cluster from a vendor other than
DataStax.
HADOOP_ENABLED=0
SOLR_ENABLED=0
SPARK_ENABLED=0
- DSE Hadoop nodes
-
Spark only and Spark +
Integrated Hadoop (
DSE Hadoop)
nodes.
HADOOP_ENABLED=1
SOLR_ENABLED=0
SPARK_ENABLED=0
- DSE Search nodes
-
DSE Search (DataStax Enterprise Search) simplifies using search
applications for data that is stored in a Cassandra
database.
SOLR_ENABLED=1
HADOOP_ENABLED=0
SPARK_ENABLED=0
- Spark nodes
-
DSE Analytics with Spark. Spark is the default mode when you
start an analytics node in a packaged installation.
- SearchAnalytics
nodes (experimental)
-
An integrated DSE SearchAnalytics cluster allows analytics
jobs to be performed using search queries.SPARK_ENABLED=1
SOLR_ENABLED=1
HADOOP_ENABLED=0
-
Start DataStax Enterprise and the DataStax Agent:
$ sudo service dse start
$ sudo service datastax-agent start
-
To check if your cluster is up and running:
On Enterprise Linux systems, the DataStax Enterprise service runs as a Java
process.
