Hazelcast Jet v4.2 Release Notes

Release Date: 2020-07-14 // over 1 year ago
    • ๐Ÿ‘ We added Change Data Capture (CDC) support for PostgreSQL and MySql. New
      connectors use Debezium to provide a high-level API for processing the
      stream of changes from relational databases. A new map sink can be used to
      ๐Ÿ”€ automatically keep the map in-sync with changes from the database.
    • We added new source and sink connectors for Elasticsearch 5, 6 and 7
      ๐ŸŽ with support for slicing and co-located reading for maximum read performance
      and extended Elasticsearch's client retry mechanism for reliable writing.
    • ๐Ÿ‘ We improved JSON support through a new file source which can read JSON files
      ๐Ÿ“œ directly and also added built-in Jet methods for parsing and mapping JSON strings.
    • We introduced .relabance() operator which can be used for distributing items
      across the cluster.
    • We made some improvements to Jet startup scripts:
      • You can now use the PROMETHEUS_PORT to start Jet with prometheus metrics enabled.
      • You can use the jvm.options file to edit the startup JVM parameters.
      • You can now use the JET_MODULES environment variable to add modules when using docker
        or jet-start script.
    • ๐Ÿ“š We did several rounds of improvements to the documentation:
      • Improvements to Docker and Kubernetes instructions
      • New guidance on Garbage Collector choice and settings
      • New and improved tutorials for CDC
      • New documentation for Python module and early results support in windowing