[jira] [Updated] (FLINK-11154) Upgrade Netty to 4.1.32

["Nico Kruber (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-11154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nico Kruber updated FLINK-11154:
--------------------------------
    Affects Version/s:     (was: 1.8.0)

> Upgrade Netty to 4.1.32
> -----------------------
>
>                 Key: FLINK-11154
>                 URL: https://issues.apache.org/jira/browse/FLINK-11154
>             Project: Flink
>          Issue Type: Improvement
>          Components: Network
>            Reporter: Nico Kruber
>            Priority: Major
>             Fix For: 1.8.0
>
>
> Notable changes since 4.1.24 (currently used in Flink 1.6-1.7):
> - big (performance, feature set) improvements for using openSSL based SSL engine (useful for FLINK-9816)
> - allow multiple shaded versions of the same netty artifact (as long as the shaded prefix is different)
> - Ensure ByteToMessageDecoder.Cumulator implementations always release.
> - Don't re-arm timerfd each epoll_wait
> - Use a non-volatile read for ensureAccessible() whenever possible to reduce overhead and allow better inlining.
> - Do not fail on runtime when an older version of Log4J2 is on the classpath
> - Fix leak and corruption bugs in CompositeByteBuf
> - Add support for TLSv1.3
> - Harden ref-counting concurrency semantics
> - bug fixes
> - Java 9-12 related fixes



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