November 2018
Intermediate to advanced
556 pages
14h 42m
English
Content preview from Hands-On Industrial Internet of Things
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Installing KairosDB
To install KairosDB, get the latest version from https://github.com/kairosdb/kairosdb/releases. We then need to unpack it. To connect to Apache Cassandra, we need to open <KAFKA_HOME>/conf/kairosdb.properties and add the comment to H2Module and remove the CassandraModule comment:
#kairosdb.service.datastore=org.kairosdb.datastore.h2.H2Modulekairosdb.datastore.concurrentQueryThreads=5kairosdb.service.datastore=org.kairosdb.datastore.cassandra.CassandraModule
To start KairosDB, we can launch it from the command console:
$ <KAIROSDB_HOME>/bin/kairosdb run
During the first run, KairosDB will create three column families to store information on Apache Cassandra:
- data_points: Where data is stored
- row_key_index: An index to ...