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From "Chesnay Schepler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8795) Scala shell broken for Flip6
Date Mon, 12 Mar 2018 11:19:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16395084#comment-16395084
] 

Chesnay Schepler commented on FLINK-8795:
-----------------------------------------

The given port is where the client expected the clusters REST server to run.

The problem is that the scala shell was not updated for Flip6; it still starts a legacy {{StandaloneClusterClient}}
but tries to connect with a Flip6 {{RestClusterClient}}.

As a workaround please add {{mode: old}} to {{conf/flink-conf.yaml}}.

> Scala shell broken for Flip6
> ----------------------------
>
>                 Key: FLINK-8795
>                 URL: https://issues.apache.org/jira/browse/FLINK-8795
>             Project: Flink
>          Issue Type: Bug
>            Reporter: kant kodali
>            Priority: Blocker
>             Fix For: 1.5.0
>
>
> I am trying to run the simple code below after building everything from Flink's github
master branch for various reasons. I get an exception below and I wonder what runs on port
9065? and How to fix this exception?
> I followed the instructions from the Flink master branch so I did the following.
> {code:java}
> git clone https://github.com/apache/flink.git 
> cd flink mvn clean package -DskipTests 
> cd build-target
>  ./bin/start-scala-shell.sh local{code}
> {{And Here is the code I ran}}
> {code:java}
> val dataStream = senv.fromElements(1, 2, 3, 4)
> dataStream.countWindowAll(2).sum(0).print()
> senv.execute("My streaming program"){code}
> {{And I finally get this exception}}
> {code:java}
> Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit JobGraph.
at org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$18(RestClusterClient.java:306)
at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:870) at
java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:852)
at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474) at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
at org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$222(RestClient.java:196)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
at java.lang.Thread.run(Thread.java:745) Caused by: java.util.concurrent.CompletionException:
java.net.ConnectException: Connection refused: localhost/127.0.0.1:9065 at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308) at
java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:943) at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
... 16 more Caused by: java.net.ConnectException: Connection refused: localhost/127.0.0.1:9065
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281){code}
>  



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