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https://issues.apache.org/jira/browse/FLINK-7927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chesnay Schepler closed FLINK-7927.
-----------------------------------
Resolution: Fixed
Fix Version/s: 1.4.0
All netty dependencies have been relocated and will no longer cause conflicts.
> Different Netty Versions in dependencies of flink-runtime make it impossible
> to use 3rd party libraries using netty
> -------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-7927
> URL: https://issues.apache.org/jira/browse/FLINK-7927
> Project: Flink
> Issue Type: Bug
> Components: Build System
> Affects Versions: 1.3.2
> Environment: * Windows 10 x64
> * Java 1.8
> Reporter: Claudius Eisele
> Fix For: 1.4.0
>
>
> I am trying to use Google PubSub (google-cloud-pubsub 0.26.0-beta) in a Flink
> streaming job but I am receiving the following error when executing it so
> unfortunately it's not possible to use PubSub in a Flink Streaming Job:
> {code:java}
> ...
> 10/25/2017 22:38:02 Source: Custom Source -> Map(1/1) switched to RUNNING
> 10/25/2017 22:38:03 Source: Custom Source -> Map(1/1) switched to FAILED
> java.lang.IllegalStateException: Expected the service InnerService [FAILED]
> to be RUNNING, but the service has FAILED
> at
> com.google.common.util.concurrent.AbstractService.checkCurrentState(AbstractService.java:328)
> at
> com.google.common.util.concurrent.AbstractService.awaitRunning(AbstractService.java:266)
> at
> com.google.api.core.AbstractApiService.awaitRunning(AbstractApiService.java:97)
> ....
> Caused by: java.lang.IllegalArgumentException: Jetty ALPN/NPN has not been
> properly configured.
> at
> io.grpc.netty.GrpcSslContexts.selectApplicationProtocolConfig(GrpcSslContexts.java:159)
> at io.grpc.netty.GrpcSslContexts.configure(GrpcSslContexts.java:136)
> at io.grpc.netty.GrpcSslContexts.configure(GrpcSslContexts.java:124)
> at io.grpc.netty.GrpcSslContexts.forClient(GrpcSslContexts.java:94)
> at
> io.grpc.netty.NettyChannelBuilder$NettyTransportFactory$DefaultNettyTransportCreationParamsFilterFactory.<init>(NettyChannelBuilder.java:525)
> at
> io.grpc.netty.NettyChannelBuilder$NettyTransportFactory$DefaultNettyTransportCreationParamsFilterFactory.<init>(NettyChannelBuilder.java:518)
> at
> io.grpc.netty.NettyChannelBuilder$NettyTransportFactory.<init>(NettyChannelBuilder.java:457)
> at
> io.grpc.netty.NettyChannelBuilder.buildTransportFactory(NettyChannelBuilder.java:326)
> at
> io.grpc.internal.AbstractManagedChannelImplBuilder.build(AbstractManagedChannelImplBuilder.java:315)
> at
> com.google.api.gax.grpc.InstantiatingChannelProvider.createChannel(InstantiatingChannelProvider.java:131)
> at
> com.google.api.gax.grpc.InstantiatingChannelProvider.getChannel(InstantiatingChannelProvider.java:116)
> at com.google.cloud.pubsub.v1.Subscriber.doStart(Subscriber.java:246)
> at
> com.google.api.core.AbstractApiService$InnerService.doStart(AbstractApiService.java:149)
> at
> com.google.common.util.concurrent.AbstractService.startAsync(AbstractService.java:211)
> at
> com.google.api.core.AbstractApiService.startAsync(AbstractApiService.java:121)
> at
> com.google.cloud.pubsub.v1.Subscriber.startAsync(Subscriber.java:235)
> ... 7 more
> {code}
> I reported this problem to the Google Cloud Java Library but the problem
> seems more to be in Flink or its dependencies like akka because there are a
> lot of netty dependencies with different versions in it:
> * Apache Zookeeper (flink-runtime dependency) has \---
> io.netty:netty:3.7.0.Final -> 3.8.0.Final
> * Flakka (flink-runtime dependency) has io.netty:netty:3.8.0.Final
> * Flink-Runtime has io.netty:netty-all:4.0.27.Final
> In my case, Google Cloud PubSub has io.grpc:grpc-netty:1.6.1
> Additional information on the issue in combination with Google Cloud PubSub
> can be found here:
> https://github.com/GoogleCloudPlatform/google-cloud-java/issues/2398
> https://github.com/grpc/grpc-java/issues/3025
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