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https://issues.apache.org/jira/browse/FLINK-3952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494941#comment-16494941
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ASF GitHub Bot commented on FLINK-3952:
---------------------------------------
Github user pnowojski commented on a diff in the pull request:
https://github.com/apache/flink/pull/6071#discussion_r191700895
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/ReadOnlySlicedNetworkBuffer.java
---
@@ -75,12 +75,12 @@ private ReadOnlySlicedNetworkBuffer(ByteBuf buffer, int
index, int length, int m
@Override
public ByteBuf unwrap() {
- return super.unwrap().unwrap();
+ return super.unwrap();
--- End diff --
Necessary for the upgrade, otherwise our tests (including `ITCases`) are
failing. In upgraded version there is a different structure of nested classes
in case of using slices of readonly buffers. Possibly this is a bug fix for a
bug, that didn't show up in older netty.
> Bump Netty to 4.1
> -----------------
>
> Key: FLINK-3952
> URL: https://issues.apache.org/jira/browse/FLINK-3952
> Project: Flink
> Issue Type: Improvement
> Components: Core, Network
> Reporter: rektide de la fey
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: netty
>
> Netty 4.1 is about to release final. This release has [a number of
> significant
> enhancements|http://netty.io/wiki/new-and-noteworthy-in-4.1.html], and in
> particular I find HTTP/2 codecs to be incredibly desirable to have.
> Additionally, hopefully, the [Hadoop patches for Netty
> 4.1|https://issues.apache.org/jira/browse/HADOOP-11716] get some tests and
> get merged, & I believe if/when that happens it'll be important for Flink to
> also be using the new Netty minor version.
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