oh interesting. The suggested workaround is to wrap the result from collectAsMap into another hashmap, you should try that:
Map<Long, MatcherReleventData> matchData =RddForMarch.collectAsMap(); Map<String, String> tmp = new HashMap<String, String>(matchData); final Broadcast<Map<Long, MatcherReleventData>> dataMatchGlobal = jsc.broadcast(tmp); Can you please clarify: * Does it work w/ java serialization in the end? Or is this kryo only? * which Spark version you are using? (one of the relevant bugs was fixed in 1.2.1 and 1.3.0) On Wed, Apr 15, 2015 at 9:06 AM, Jeetendra Gangele <gangele...@gmail.com> wrote: > This looks like known issue? check this out > > http://apache-spark-user-list.1001560.n3.nabble.com/java-io-InvalidClassException-org-apache-spark-api-java-JavaUtils-SerializableMapWrapper-no-valid-cor-td20034.html > > Can you please suggest any work around I am broad casting HashMap return > from RDD.collectasMap(). > > On 15 April 2015 at 19:33, Imran Rashid <iras...@cloudera.com> wrote: > >> this is a really strange exception ... I'm especially surprised that it >> doesn't work w/ java serialization. Do you think you could try to boil it >> down to a minimal example? >> >> On Wed, Apr 15, 2015 at 8:58 AM, Jeetendra Gangele <gangele...@gmail.com> >> wrote: >> >>> Yes Without Kryo it did work out.when I remove kryo registration it did >>> worked out >>> >>> On 15 April 2015 at 19:24, Jeetendra Gangele <gangele...@gmail.com> >>> wrote: >>> >>>> its not working with the combination of Broadcast. >>>> Without Kyro also not working. >>>> >>>> >>>> On 15 April 2015 at 19:20, Akhil Das <ak...@sigmoidanalytics.com> >>>> wrote: >>>> >>>>> Is it working without kryo? >>>>> >>>>> Thanks >>>>> Best Regards >>>>> >>>>> On Wed, Apr 15, 2015 at 6:38 PM, Jeetendra Gangele < >>>>> gangele...@gmail.com> wrote: >>>>> >>>>>> Hi All I am getting below exception while using Kyro serializable >>>>>> with broadcast variable. I am broadcating a hasmap with below line. >>>>>> >>>>>> Map<Long, MatcherReleventData> matchData =RddForMarch.collectAsMap(); >>>>>> final Broadcast<Map<Long, MatcherReleventData>> dataMatchGlobal = >>>>>> jsc.broadcast(matchData); >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> 15/04/15 12:58:51 ERROR executor.Executor: Exception in task 0.3 in >>>>>> stage 4.0 (TID 7) >>>>>> java.io.IOException: java.lang.UnsupportedOperationException >>>>>> at >>>>>> org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1003) >>>>>> at >>>>>> org.apache.spark.broadcast.TorrentBroadcast.readBroadcastBlock(TorrentBroadcast.scala:164) >>>>>> at >>>>>> org.apache.spark.broadcast.TorrentBroadcast._value$lzycompute(TorrentBroadcast.scala:64) >>>>>> at >>>>>> org.apache.spark.broadcast.TorrentBroadcast._value(TorrentBroadcast.scala:64) >>>>>> at >>>>>> org.apache.spark.broadcast.TorrentBroadcast.getValue(TorrentBroadcast.scala:87) >>>>>> at >>>>>> com.insideview.yam.CompanyMatcher$4.call(CompanyMatcher.java:103) >>>>>> at >>>>>> com.insideview.yam.CompanyMatcher$4.call(CompanyMatcher.java:1) >>>>>> at >>>>>> org.apache.spark.api.java.JavaPairRDD$$anonfun$pairFunToScalaFun$1.apply(JavaPairRDD.scala:1002) >>>>>> at >>>>>> org.apache.spark.api.java.JavaPairRDD$$anonfun$pairFunToScalaFun$1.apply(JavaPairRDD.scala:1002) >>>>>> at scala.collection.Iterator$$anon$11.next(Iterator.scala:328) >>>>>> at >>>>>> org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:204) >>>>>> at >>>>>> org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:58) >>>>>> at >>>>>> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68) >>>>>> at >>>>>> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) >>>>>> at org.apache.spark.scheduler.Task.run(Task.scala:56) >>>>>> at >>>>>> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:196) >>>>>> at >>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) >>>>>> at >>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) >>>>>> at java.lang.Thread.run(Thread.java:745) >>>>>> Caused by: java.lang.UnsupportedOperationException >>>>>> at java.util.AbstractMap.put(AbstractMap.java:203) >>>>>> at >>>>>> com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:135) >>>>>> at >>>>>> com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:17) >>>>>> at >>>>>> com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:729) >>>>>> at >>>>>> org.apache.spark.serializer.KryoDeserializationStream.readObject(KryoSerializer.scala:142) >>>>>> at >>>>>> org.apache.spark.broadcast.TorrentBroadcast$.unBlockifyObject(TorrentBroadcast.scala:216) >>>>>> at >>>>>> org.apache.spark.broadcast.TorrentBroadcast$$anonfun$readBroadcastBlock$1.apply(TorrentBroadcast.scala:177) >>>>>> at >>>>>> org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1000) >>>>>> ... 18 more >>>>>> 15/04/15 12:58:51 INFO executor.CoarseGrainedExecutorBackend: Driver >>>>>> commanded a shutdown >>>>>> 15/04/15 12:58:51 INFO storage.MemoryStore: MemoryStore cleared >>>>>> 15/04/15 12:58:51 INFO storage.BlockManager: BlockManager stopped >>>>>> 15/04/15 12:58:51 INFO >>>>>> remote.RemoteActorRefProvider$RemotingTerminator: Shutting down remote >>>>>> daemon. >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >> > > > >
