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From "Chesnay Schepler (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-7943) OptionalDataException when launching Flink jobs concurrently
Date Mon, 20 Nov 2017 14:54:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chesnay Schepler reassigned FLINK-7943:
---------------------------------------

    Assignee: Till Rohrmann  (was: Chesnay Schepler)

> OptionalDataException when launching Flink jobs concurrently
> ------------------------------------------------------------
>
>                 Key: FLINK-7943
>                 URL: https://issues.apache.org/jira/browse/FLINK-7943
>             Project: Flink
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 1.4.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
>             Fix For: 1.4.0
>
>
> A user reported that he is getting a {{OptionalDataException}} when he launches multiple
Flink jobs from the same program concurrently. The problem seems to appear if one sets the
{{GlobalJobParameters}}. The stack trace can be found below:
> {code}
> Failed to submit job 60f4da5cf76836fe52ceba5cebdae412 (Union4a:14:15)
> java.io.OptionalDataException
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1588)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:428)
>         at java.util.HashMap.readObject(HashMap.java:1407)
>         at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1158)
>         at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2173)
>         at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
>         at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
>         at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
>         at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
>         at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2282)
>         at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2206)
>         at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2064)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1568)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:428)
>         at
> org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:290)
>         at
> org.apache.flink.util.SerializedValue.deserializeValue(SerializedValue.java:58)
>         at
> org.apache.flink.runtime.jobmanager.JobManager.org$apache$flink$runtime$jobmanager$JobManager$$submitJob(JobManager.scala:1283)
>         at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:495)
>         at
> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
>         at
> org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:38)
>         at
> scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36)
>         at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
>         at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
>         at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
>         at
> org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
>         at akka.actor.Actor$class.aroundReceive(Actor.scala:467)
>         at
> org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:125)
>         at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
>         at akka.actor.ActorCell.invoke(ActorCell.scala:487)
>         at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)
>         at akka.dispatch.Mailbox.run(Mailbox.scala:220)
>         at
> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
>         at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
>         at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
>         at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
>         at
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> {code}
> The user code causing the problem is:
> {code}
> @SuppressWarnings("serial")
> public class UnionThreaded {
>     static int ThreadPoolSize = 3;
>     static int JobsPerThread = 2;
>     static ParameterTool params;
>     public static class RunSubset implements Runnable {
>         private int start = 0;
>         private int end = 0;
>         RunSubset(int start, int end) {
>             this.start = start;
>             this.end = end;
>         }
>         @Override
>         public void run() {
>             // set up the execution environment
>             final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
>             // make parameters available in the web interface
>             env.getConfig().setGlobalJobParameters(params);
>             if (params.has("left") && params.has("right")) {
>                 for (int i = start; i < end; i++) {
>                     DataSet<DeviceRecord> l, r;
>                     DataSet<DeviceRecord1> j;
>                     DataSet<Tuple2<Integer, Integer>> c1, c2;
>                     r = env.readCsvFile(params.get("right") + "/" + Integer.toString(i))
>                         .pojoType(DeviceRecord.class, "A", "B", "C")
>                         .setParallelism(1)
>                         .filter(new MyFilter())
>                         .setParallelism(1);
>                     // read the text file from given input path
>                     j = env.readCsvFile(params.get("left") + "/" + Integer.toString(i))
>                         .pojoType(DeviceRecord.class, "A", "B", "C")
>                         .setParallelism(1)
>                         .leftOuterJoin(r)
>                         .where("B")
>                         .equalTo("B")
>                         .with(new MyFlatJoinFunction()).setParallelism(1);
>                     j.flatMap(new Mapper(false))
>                         .groupBy(0)
>                         .sum(1).setParallelism(1)
>                         .writeAsCsv(params.get("output") + "/" + Integer.toString(i),
"\n", ",");
>                     j.flatMap(new Mapper2(true))
>                         .groupBy(0)
>                         .sum(1).setParallelism(1)
>                         .writeAsCsv(params.get("output2") + "/" + Integer.toString(i),
"\n", ",");
>                 }
>             }
>             try {
>                 System.out.println("calling env.execute()"); // + Calendar.getInstance().getTime();
>                 env.execute("Union4a" + ":" + Integer.toString(start) + ":" + Integer.toString(end));
>             } catch (Exception e) {
>                 System.err.println("env.execute exception: " + e.getMessage());
>             }
>         }
>     }
>     // *************************************************************************
>     //     PROGRAM
>     // *************************************************************************
>     public static void main(String[] args) throws Exception {
>         params = ParameterTool.fromArgs(args);
>         // set up the execution environment
>         final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
>         // make parameters available in the web interface
>         env.getConfig().setGlobalJobParameters(params);
>         int total_to_do = Integer.decode(params.get("filecount"));
>         // number of threads should be <= number of slots
>         ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(ThreadPoolSize);
>         // assumes an even number of jobs
>         for (int i = 0; i < total_to_do; i += JobsPerThread) {
>             int end = i + JobsPerThread;
>             if (end > total_to_do) {
>                 end = total_to_do;
>             }
>             executor.execute(new RunSubset(i, end));
>         }
>         executor.shutdown();
>         // Many ways of waiting.
>         try {
>             executor.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS);
>         } catch (InterruptedException e) {
>             System.out.println("Execution interrupted");
>             System.exit(-1);
>         }
>         // get input data
>         DataSet<Tuple2<Integer, Integer>> counts;
>         DataSet<Tuple2<Integer, Integer>> counts2;
>         counts = env.readCsvFile(params.get("output"))
>             .types(Integer.class, Integer.class);
>         counts2 = env.readCsvFile(params.get("output2"))
>             .types(Integer.class, Integer.class);
>         // Count by C
>         counts = counts
>             .groupBy(0)
>             .sum(1);
>         // Count by device
>         counts2 = counts2
>             .groupBy(0)
>             .sum(1);
>         // emit result
>         if (params.has("output")) {
>             counts.writeAsCsv(params.get("output3"), "\n", ", ");
>         }
>         // emit result
>         if (params.has("output2")) {
>             counts2.writeAsCsv(params.get("output4"), "\n", ", ");
>         }
>         // execute program
>         env.execute("Union4b");
>     }
> {code}
> [1] http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Execute-multiple-jobs-in-parallel-threading-java-io-OptionalDataException-td16441.html



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