This topic describes the release notes for fully managed Flink and provides links to the relevant references. The release notes provide the major updates and bug fixes in fully managed Flink in the version that was released on November 9, 2022.

Overview

The new version of fully managed Flink was officially released on November 9, 2022. The Ververica Runtime (VVR) version that is released is VVR 4.0.16 and is developed based on Apache Flink 1.13. Major defects in the Apache Flink community are fixed in this version.
Important If your deployment uses VVR 4.X, we recommend that you update the VVR version to VVR 4.0.16 at the earliest opportunity to ensure stable production.

Fixed issues

  • The issue that a deployment reports an error and cannot be automatically restored due to the issue FLINK-28265 is fixed.

    If network jitter occurs, the Serialized CompletedCheckpoint file is deleted due to the issue FLINK-28265. In this case, the FileNotFound error occurs during a failover and the deployment cannot be automatically restored during the failover. The issue FLINK-28265 is fixed in Apache Flink 1.16.0 and Apache Flink 1.15.3 and is fixed in VVR 6.0.2 and later of Realtime Compute for Apache Flink. However, potential major risks exist in the operation of deployments due to the issue FLINK-28265. Therefore, a handling method is provided in an earlier version for cloud customers and the patch is incorporated into VVR 4.0.16.

  • The issue Hudi-4907 in the Apache Flink community is fixed.
  • The defects in the SQL Server performance and stability are fixed.
  • The issue that causes the following error during deployment verification is fixed: java.lang.ClassCastException: org.codehaus.janino.CompilerFactory cannot be cast.