...

Version 1.1.0

Version 1.1.0 of Apache NiFi is a feature and stability focused release which builds on the great improvements and community progress of the 1.0 release.

Release Date: TBD - In RC/Vote preparation now.

There are many changes in the 1.1.0 release with some highlights including:

• Core Framework Improvements
  • Cluster Management logic has been stabilized and improved to better support zero-master clustering.  For example, recovery time is faster now as we're not having to always wait some artificial length of time to see if any new nodes will join and thus we should reconsider which flow is the golden copy.
  • The expression language capability now supports decimals, base64 and hex encoded values, and math functions.
  • The flowfile, provenance, and content repositories have been reworked to support rollback.  We've always been careful to ensure that upgrades would work well where existing flow state would be honored but what was harder was supporting the ability to rollback where state was written via a new version of NiFi but the user decided to rollback to an older version.  This is now supported.  This powerful feature also sets the stage for future work to enable rolling upgrades and automated rollbacks!
  • Startup times for flows that have large backlogs should be far faster as the swap files have been reworked to provide summaries and avoid the need for full scans.
  • For developers, they can now indicate that their processor should be given an instance isolated classloader.  Some libraries, like Hadoop client and scripting engines as an example, use static variables that can pollute instances of processors on the graph.  This feature allows those cases to be easily overcome by enabling isolation per instance of a processor.  This also makes it really easy to expose classloader extension for custom jars to users.
  • For developers, there is now an ability to migrate in-flight process session state to another process session.  This will yield higher efficiency and makes for a far easier programming model for aggregation type patterns as seen in MergeContent, for example.
• Zero master clustering
  • There is no longer a NiFi Cluster Manager (NCM)
  • Cluster will now auto elect a Cluster Coordinator to oversee the cluster
• Multi-tenant authorization and internal authorization/policy management
  • There is no longer just the limited Administrator, Data Flow Manager, etc. roles
  • Policies are fully customizable for each component and at the controller level as well
• Deterministic template export
  • Templates export is now deterministic and thus can now be version controlled

A full list of issues that were resolved can be found at: https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12316020&version=12332640

Version 1.0.0

Version 1.0.0 of Apache NiFi is a major release that includes a brand new UI, framework level improvements and much more!

...