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https://issues.apache.org/jira/browse/FLINK-8334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308168#comment-16308168
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Aljoscha Krettek commented on FLINK-8334:
-----------------------------------------
Could you check if your jar files contain any netty classes? This could be a
clash in dependencies or Maven might be excluding stuff since it "thinks" it
comes provided with Flink.
> Elasticsearch Connector throwing java.lang.ClassNotFoundException:
> org.jboss.netty.channel.socket.nio.SocketSendBufferPool$GatheringSendBuffer
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-8334
> URL: https://issues.apache.org/jira/browse/FLINK-8334
> Project: Flink
> Issue Type: Bug
> Components: ElasticSearch Connector
> Affects Versions: 1.4.0
> Environment: Using Elasticsearch 5.1.2 in a docker environment
> Flink is deployed on a different docker
> Reporter: Bhaskar Divya
> Labels: elasticsearch, netty
>
> I have a Elasticsearch sink configured. When a job is submitted, It goes into
> fail status in a few seconds.
> Following is the Exception from the Job screen:
> {code:java}
> java.lang.RuntimeException: Elasticsearch client is not connected to any
> Elasticsearch nodes!
> at
> org.apache.flink.streaming.connectors.elasticsearch5.Elasticsearch5ApiCallBridge.createClient(Elasticsearch5ApiCallBridge.java:80)
> at
> org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchSinkBase.open(ElasticsearchSinkBase.java:281)
> at
> org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36)
> at
> org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102)
> at
> org.apache.flink.streaming.api.operators.StreamSink.open(StreamSink.java:48)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:393)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:254)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> In the logs, Following stack trace is shown.
> {code}
> 2018-01-01 12:15:14,432 INFO
> org.elasticsearch.client.transport.TransportClientNodesService - failed to
> get node info for
> {#transport#-1}{8IZTMPcSRCyKRynhfyN2fA}{192.168.99.100}{192.168.99.100:9300},
> disconnecting...
> NodeDisconnectedException[[][192.168.99.100:9300][cluster:monitor/nodes/liveness]
> disconnected]
> 2018-01-01 12:15:19,433 ERROR org.elasticsearch.transport.netty3.Netty3Utils
> - fatal error on the network layer
> at
> org.elasticsearch.transport.netty3.Netty3Utils.maybeDie(Netty3Utils.java:195)
> at
> org.elasticsearch.transport.netty3.Netty3MessageChannelHandler.exceptionCaught(Netty3MessageChannelHandler.java:82)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.handler.codec.frame.FrameDecoder.exceptionCaught(FrameDecoder.java:377)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
> at
> org.jboss.netty.channel.Channels.fireExceptionCaught(Channels.java:525)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.write0(AbstractNioWorker.java:291)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.writeFromTaskLoop(AbstractNioWorker.java:151)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioChannel$WriteTask.run(AbstractNioChannel.java:292)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:391)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:315)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
> at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
> at
> org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
> at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> 2018-01-01 12:15:19,448 WARN
> org.elasticsearch.transport.netty3.Netty3Transport - exception
> caught on transport layer [[id: 0xef889995, /172.17.0.4:48450 =>
> /192.168.99.100:9300]], closing connection
> ElasticsearchException[java.lang.NoClassDefFoundError:
> org/jboss/netty/channel/socket/nio/SocketSendBufferPool$GatheringSendBuffer];
> nested:
> NoClassDefFoundError[org/jboss/netty/channel/socket/nio/SocketSendBufferPool$GatheringSendBuffer];
> nested:
> ClassNotFoundException[org.jboss.netty.channel.socket.nio.SocketSendBufferPool$GatheringSendBuffer];
> at
> org.elasticsearch.transport.netty3.Netty3Transport.exceptionCaught(Netty3Transport.java:325)
> at
> org.elasticsearch.transport.netty3.Netty3MessageChannelHandler.exceptionCaught(Netty3MessageChannelHandler.java:83)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
> at
> org.jboss.netty.handler.codec.frame.FrameDecoder.exceptionCaught(FrameDecoder.java:377)
> at
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
> at
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
> at
> org.jboss.netty.channel.Channels.fireExceptionCaught(Channels.java:525)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.write0(AbstractNioWorker.java:291)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.writeFromTaskLoop(AbstractNioWorker.java:151)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioChannel$WriteTask.run(AbstractNioChannel.java:292)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:391)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:315)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
> at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
> at
> org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
> at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.NoClassDefFoundError:
> org/jboss/netty/channel/socket/nio/SocketSendBufferPool$GatheringSendBuffer
> at
> org.jboss.netty.channel.socket.nio.SocketSendBufferPool.acquire(SocketSendBufferPool.java:70)
> at
> org.jboss.netty.channel.socket.nio.SocketSendBufferPool.acquire(SocketSendBufferPool.java:46)
> at
> org.jboss.netty.channel.socket.nio.AbstractNioWorker.write0(AbstractNioWorker.java:193)
> ... 11 more
> Caused by: java.lang.ClassNotFoundException:
> org.jboss.netty.channel.socket.nio.SocketSendBufferPool$GatheringSendBuffer
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at
> org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$ChildFirstClassLoader.loadClass(FlinkUserCodeClassLoaders.java:128)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> ... 14 more
> {code}
> It looks like a dependency issues with netty.
> Relevant sections in POM
> {code}
> ...
> <properties>
>
> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
> <flink.version>1.4.0</flink.version>
> <slf4j.version>1.7.7</slf4j.version>
> <log4j.version>1.2.17</log4j.version>
> <scala.binary.version>2.11</scala.binary.version>
> </properties>
> ...
> <dependencies>
> ...
> <dependency>
> <groupId>org.apache.flink</groupId>
>
> <artifactId>flink-connector-elasticsearch5_${scala.binary.version}</artifactId>
> <version>1.4.0</version>
> </dependency>
> ...
> </dependencies>
> <profiles>
> <profile>
> <!-- Profile for packaging correct JAR files -->
> <id>build-jar</id>
> ...
> <dependencies>
> <dependency>
> <groupId>org.apache.flink</groupId>
>
> <artifactId>flink-connector-elasticsearch5_${scala.binary.version}</artifactId>
> <version>1.4.0</version>
> </dependency>
> </dependencies>
> <build>
> <plugins>
> <!-- disable the exclusion rules -->
> <plugin>
>
> <groupId>org.apache.maven.plugins</groupId>
>
> <artifactId>maven-shade-plugin</artifactId>
> <version>2.4.1</version>
> <executions>
> <execution>
>
> <phase>package</phase>
> <goals>
>
> <goal>shade</goal>
> </goals>
> <configuration>
>
> <transformers>
>
> <transformer
> implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
>
> </transformers>
>
> <artifactSet>
>
> <excludes combine.self="override"></excludes>
>
> </artifactSet>
> </configuration>
> </execution>
> </executions>
> </plugin>
> </plugins>
> </build>
> ...
> {code}
> Elasticsearch is working as I am able to create indices and connected through
> kibana(in a separate docker).
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