Hi Robert, Thank you for your prompt response.No, I downloaded it from an apache mirror.I think yarn loads the hadoop universe before the user classpath by default, so I reckon I would get this exception even without flink in the middle.I can still see both the old and the new MoreExecutors class in flink-dist (the old as org/apache/flink/hadoop/shaded/com/google/common/util/concurrentthe new as org/apache/flink/shaded/com/google/common/util/concurrent)I reckon I should try to shade guava in my side, but the Shade plugin in sbt-assembly is quite fresh. I will try and report. Thanks,Aris
From: rmetz...@apache.org Date: Tue, 26 Apr 2016 18:42:31 +0200 Subject: Re: classpath issue on yarn To: user@flink.apache.org Hi Aris, Did you build the 1.0.2 flink-dist yourself?If not, which exact version did you download?For example this file: http://www.apache.org/dyn/closer.lua/flink/flink-1.0.2/flink-1.0.2-bin-hadoop2-scala_2.11.tgz has a clean flink-dist jar. On Tue, Apr 26, 2016 at 12:28 PM, aris kol <gizera...@hotmail.com> wrote: Hi guys,I ran into a weird classpath issue while running a streaming job on a yarn cluster.I have a relatively simple flow that reads data from kafka, does a few manipulations and then indexes them on Elasticsearch (2.3).I use the elasticsearch2 connector (1.1-SNAPSHOT) (bleeding edge, I know).The stream works fine in a local flink node (1.0.2) (reading from remote kafka and writing to remote es).However, when deployed to the remote YARN cluster (again, flink 1.0.2) the following exception is thrown:```04/26/2016 10:07:30 Source: Custom Source -> Flat Map -> Sink: Unnamed(1/8) switched to FAILED java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor; at org.elasticsearch.threadpool.ThreadPool.<clinit>(ThreadPool.java:190) at org.elasticsearch.client.transport.TransportClient$Builder.build(TransportClient.java:131) at org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink.open(ElasticsearchSink.java:164) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91) at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:317) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:215) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559) at java.lang.Thread.run(Thread.java:745)04/26/2016 10:07:30 Job execution switched to status FAILING.java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor; at org.elasticsearch.threadpool.ThreadPool.<clinit>(ThreadPool.java:190) at org.elasticsearch.client.transport.TransportClient$Builder.build(TransportClient.java:131) at org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink.open(ElasticsearchSink.java:164) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91) at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:317) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:215) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559) at java.lang.Thread.run(Thread.java:745)04/26/2016 10:07:30 Source: Custom Source -> Flat Map -> Sink: Unnamed(7/8) switched to FAILED java.lang.NoClassDefFoundError: Could not initialize class org.elasticsearch.threadpool.ThreadPool at org.elasticsearch.client.transport.TransportClient$Builder.build(TransportClient.java:131) at org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink.open(ElasticsearchSink.java:164) at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38) at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91) at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:317) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:215) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559) at java.lang.Thread.run(Thread.java:745)```I rebuilt the fat jar (I use sbt) many times and in my fat jar there is no trace of the old guava `MoreExecutor` class that doesn't contain the `directExecutor` method the transport client needs.`lib/flink-dist_2.11-1.0.2.jar` unfortunately contains both: the newest class coming from guava 18 and an old one introduced probably by some ancient hadoop dependency. For some reason the old version takes precedence.In Spark, I used to configure spark.driver.userClassPathFirst trueand those problems were usually dealt with. Is there anything similar?Any ideas? Thanks,Aris
