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https://issues.apache.org/jira/browse/FLINK-3952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16493381#comment-16493381
]
ASF GitHub Bot commented on FLINK-3952:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/6071#discussion_r191379552
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/runtime/NettyEpollITCase.java
---
@@ -0,0 +1,103 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.test.runtime;
+
+import org.apache.flink.api.java.functions.KeySelector;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.streaming.api.datastream.DataStream;
+import
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.test.util.MiniClusterResource;
+import
org.apache.flink.test.util.MiniClusterResource.MiniClusterResourceConfiguration;
+import org.apache.flink.util.TestLogger;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Optional;
+
+import static
org.apache.flink.runtime.io.network.netty.NettyConfig.TRANSPORT_TYPE;
+import static
org.apache.flink.util.ExceptionUtils.findThrowableWithMessage;
+
+/**
+ * Test network stack with taskmanager.network.netty.transport set to
epoll. This test car only run
--- End diff --
typo: can only run
> 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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