Nemo Release 0.3

Release Notes - Apache Nemo - Version 0.3

Here’s a brief summary about the release:

• This release fixes a few high-priority bugs in 0.2 and has a variety of smaller fixes.
• The release also includes several major functionalities regarding stream processing and dynamic optimizations, such as dynamic task sizing, as well as implementation of the simulation scheduler.

Sub-task

• [NEMO-351] - Empowering Nemo with fast I/O using Apache Crail

Bug

• [NEMO-377] - Fix watermark emission when there are no outputs in GBKWindowTransform
• [NEMO-411] - Bug in ScheduleGroupPass, OutputTag, DuplicateEdgeGroup
• [NEMO-447] - Fix beam pom.xml to resolve build failure
• [NEMO-457] - Improve test coverage score on sonar cloud test

New Feature

• [NEMO-438] - Create a Simulator for Simulating an Execution of an Execution Plan

Improvement

• [NEMO-324] - Distinguish Beam's run and waitUntilFinish methods.
• [NEMO-392] - Support combine in streaming
• [NEMO-433] - Improvement of Task Metrics and Collecting Them For Sampling
• [NEMO-439] - Upgrade current working version to 0.3-SNAPSHOT
• [NEMO-459] - Enable Automatic Analysis for sonar cloud