Our stream analytics documentation received substantial updates for HDP 2.5.0.
The Apache Storm Component Guide was reorganized to focus on administration and development workflow: installing and configuring Storm, developing Storm applications, moving data into and out of Storm, and managing topologies.
New content includes the following topics:
Installing Storm using Ambari.
Configuring Storm for a production environment.
Implementing windowing computations on data streams.
Implementing state management in core Storm.
Configuring and using the HDFS spout to ingest data from HDFS.
Monitoring and debugging Apache Storm topologies through the use of dynamic log levels, topology event logging, distributed log search, and dynamic worker profiling.
The Storm application development chapter differentiates more clearly between core Storm and Trident, and the Kafka spout subsection describes performance settings and tradeoffs.