Hello, I’ve switched to 1.1.0, but part of my code doesn’t work any longer.
Despite the fact that I have no Hadoop 1 jar in my dependencies (2.7.1 clients & flink-hadoop-compatibility_2.10 1.1.0), I have a weird JobContext version mismatch error, that I was unable to understand. Code is a hive table read in a local batch flink cluster using a M/R job (from good package mapreduce, not mapred). import org.apache.hadoop.mapreduce.InputFormat; import org.apache.hadoop.mapreduce.Job; import org.apache.flink.api.java.hadoop.mapreduce.HadoopInputFormat; (…) final Job job = Job.getInstance(); final InputFormat<NullWritable, DefaultHCatRecord> hCatInputFormat = (InputFormat) HCatInputFormat.setInput(job, table.getDbName(), table.getTableName(), filter); final HadoopInputFormat<NullWritable, DefaultHCatRecord> inputFormat = new HadoopInputFormat<NullWritable, DefaultHCatRecord>(hCatInputFormat, NullWritable.class, DefaultHCatRecord.class, job); final HCatSchema inputSchema = HCatInputFormat.getTableSchema(job.getConfiguration()); return cluster .createInput(inputFormat) .flatMap(new RichFlatMapFunction<Tuple2<NullWritable, DefaultHCatRecord>, T>() { @Override public void flatMap(Tuple2<NullWritable, DefaultHCatRecord> value, Collector<T> out) throws Exception { // NOPMD (...) } }).returns(beanClass); Exception is : org.apache.flink.runtime.client.JobExecutionException: Failed to submit job 69dba7e4d79c05d2967dca4d4a27cf38 (Flink Java Job at Tue Aug 09 09:19:41 CEST 2016) at org.apache.flink.runtime.jobmanager.JobManager.org$apache$flink$runtime$jobmanager$JobManager$$submitJob(JobManager.scala:1281) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:478) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) at org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33) at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28) at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118) at org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:121) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254) at akka.dispatch.Mailbox.run(Mailbox.scala:221) at akka.dispatch.Mailbox.exec(Mailbox.scala:231) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Caused by: org.apache.flink.runtime.JobException: Creating the input splits caused an error: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected at org.apache.flink.runtime.executiongraph.ExecutionJobVertex.<init>(ExecutionJobVertex.java:172) at org.apache.flink.runtime.executiongraph.ExecutionGraph.attachJobGraph(ExecutionGraph.java:695) at org.apache.flink.runtime.jobmanager.JobManager.org$apache$flink$runtime$jobmanager$JobManager$$submitJob(JobManager.scala:1178) ... 23 more Caused by: java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected at org.apache.flink.api.java.hadoop.mapreduce.HadoopInputFormatBase.createInputSplits(HadoopInputFormatBase.java:158) at org.apache.flink.api.java.hadoop.mapreduce.HadoopInputFormatBase.createInputSplits(HadoopInputFormatBase.java:56) at org.apache.flink.runtime.executiongraph.ExecutionJobVertex.<init>(ExecutionJobVertex.java:156) ... 25 more Any idea what has gone wrong ? 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