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Posted to dev@zeppelin.apache.org by Eric Charles <er...@apache.org> on 2016/09/12 13:23:30 UTC
Re: Issues in using Remote Interpreter
Another more classical way to achieve this is to start the remote
interpreter via the shell command (example `./bin/interpreter.sh -p 3034 -d
markdown`).
When I configure the markdown interpreter to connect to localhost:3034, I
receive an thrift exception (*). My thrift server and client are normally
compatible.
Anyone running remote interperter with latest HEAD?
INFO [2016-09-12 15:22:38,530] ({pool-2-thread-2}
SchedulerFactory.java[jobFinished]:137) - Job
paragraph_1423836981412_-1007008116 finished by scheduler
org.apache.zeppelin.interpreter.remote.RemoteInterpreter2A94M5J1Z1515930344
ERROR [2016-09-12 15:22:38,714] ({qtp2076287037-51}
ResourcePoolUtils.java[getAllResourcesExcept]:64) - Negative length:
-2147418111
org.apache.thrift.TApplicationException: Negative length: -2147418111
at
org.apache.thrift.TApplicationException.read(TApplicationException.java:111)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:71)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.recv_resourcePoolGetAll(RemoteInterpreterService.java:486)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.resourcePoolGetAll(RemoteInterpreterService.java:474)
at
org.apache.zeppelin.resource.ResourcePoolUtils.getAllResourcesExcept(ResourcePoolUtils.java:58)
at
org.apache.zeppelin.resource.ResourcePoolUtils.getAllResources(ResourcePoolUtils.java:36)
at org.apache.zeppelin.helium.Helium.suggestApp(Helium.java:153)
at org.apache.zeppelin.rest.HeliumRestApi.suggest(HeliumRestApi.java:74)
at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at
org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:180)
at
org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)
On Fri, Aug 19, 2016 at 6:47 PM, Sourav Mazumder <
sourav.mazumder00@gmail.com> wrote:
> Hi,
>
> From the documentation it is not very clear how exactly the remote
> interpreter works.
>
> Here is what I tried. But it didn't work. I am using zeppelin 0.6.1 binary
> and spark 2.0.
>
> 1. In a remote spark cluster
> a) I created a spark interpreter (copying from the default spark
> interpreter) with master as Yarn-Client
> b). I started the same in a notebook (ensuring that this interpreter is
> enabled) using following code -
> import org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer
>
> val interpreter = new RemoteInterpreterServer(51000)
> interpreter.start()
> c). When I go to the yarn application manager I can see this new
> interpreter is running. Also the log file shows that the remote interpreter
> has started in 51000 port
>
> 2. Next in a client machine (a mac laptop) I started Zeppelin.
> a) I created a new Spark interpreter copying from existing one. There I
> enabled the checkbox - Connect to Existing Process and provided host ip and
> port.
> b) I have kept the master as local
> c) Now I selected this interpreter for Zeppelin Tutorial notebook and ran
> the same.
> d) The first paragraph with spark interpreter (Load Data in Table) worked
> fine. Also I saw the log in the server shows that it is successfully
> parsing the bank table.
> e) But the next paragraph (%sql select age, count(1) value from bank where
> age < 30 group by age order by age) gives error as follwos -
>
> Caused by: java.lang.ClassCastException: cannot assign instance of
> scala.collection.immutable.List$SerializationProxy to field
> org.apache.spark.rdd.RDD.org$apache$spark$rdd$RDD$$dependencies_ of type
> scala.collection.Seq in instance of org.apache.spark.rdd.MapPartitionsRDD
>
> at
> java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(
> ObjectStreamClass.java:2089)
>
> at
> java.io.ObjectStreamClass.setObjFieldValues(ObjectStreamClass.java:1261)
>
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1999)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at java.io.ObjectInputStream.readObject(ObjectInputStream.
> java:371)
>
> at
> scala.collection.immutable.List$SerializationProxy.
> readObject(List.scala:479)
>
> at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
>
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:43)
>
> at java.lang.reflect.Method.invoke(Method.java:497)
>
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at java.io.ObjectInputStream.readObject(ObjectInputStream.
> java:371)
>
> at
> scala.collection.immutable.List$SerializationProxy.
> readObject(List.scala:479)
>
> at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
>
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:43)
>
> at java.lang.reflect.Method.invoke(Method.java:497)
>
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
>
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
>
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
>
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>
>
> Any idea where am I going wrong ?
>
> Regards,
> Sourav
>
Re: Issues in using Remote Interpreter
Posted by Hyung Sung Shim <hs...@nflabs.com>.
Hello.
ZeppelinServer launch the InterpreterServer just before paragraph job is
started in the code automatically so you don't need to start
InterpreterServer on the paragraph.
I got same error when I was same situation with Eric Charles.
It's a bug i think so could you file the jira issue for this?
2016-09-12 22:23 GMT+09:00 Eric Charles <er...@apache.org>:
> Another more classical way to achieve this is to start the remote
> interpreter via the shell command (example `./bin/interpreter.sh -p 3034 -d
> markdown`).
>
> When I configure the markdown interpreter to connect to localhost:3034, I
> receive an thrift exception (*). My thrift server and client are normally
> compatible.
> Anyone running remote interperter with latest HEAD?
>
>
> INFO [2016-09-12 15:22:38,530] ({pool-2-thread-2}
> SchedulerFactory.java[jobFinished]:137) - Job
> paragraph_1423836981412_-1007008116 finished by scheduler
> org.apache.zeppelin.interpreter.remote.RemoteInterpreter2A94M5J1Z1515
> 930344
> ERROR [2016-09-12 15:22:38,714] ({qtp2076287037-51}
> ResourcePoolUtils.java[getAllResourcesExcept]:64) - Negative length:
> -2147418111
> org.apache.thrift.TApplicationException: Negative length: -2147418111
> at
> org.apache.thrift.TApplicationException.read(TApplicationException.java:
> 111)
> at org.apache.thrift.TServiceClient.receiveBase(
> TServiceClient.java:71)
> at
> org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$
> Client.recv_resourcePoolGetAll(RemoteInterpreterService.java:486)
> at
> org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$
> Client.resourcePoolGetAll(RemoteInterpreterService.java:474)
> at
> org.apache.zeppelin.resource.ResourcePoolUtils.getAllResourcesExcept(
> ResourcePoolUtils.java:58)
> at
> org.apache.zeppelin.resource.ResourcePoolUtils.getAllResources(
> ResourcePoolUtils.java:36)
> at org.apache.zeppelin.helium.Helium.suggestApp(Helium.java:153)
> at org.apache.zeppelin.rest.HeliumRestApi.suggest(
> HeliumRestApi.java:74)
> at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at
> org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(
> AbstractInvoker.java:180)
> at
> org.apache.cxf.service.invoker.AbstractInvoker.
> invoke(AbstractInvoker.java:96)
>
>
>
> On Fri, Aug 19, 2016 at 6:47 PM, Sourav Mazumder <
> sourav.mazumder00@gmail.com> wrote:
>
> > Hi,
> >
> > From the documentation it is not very clear how exactly the remote
> > interpreter works.
> >
> > Here is what I tried. But it didn't work. I am using zeppelin 0.6.1
> binary
> > and spark 2.0.
> >
> > 1. In a remote spark cluster
> > a) I created a spark interpreter (copying from the default spark
> > interpreter) with master as Yarn-Client
> > b). I started the same in a notebook (ensuring that this interpreter is
> > enabled) using following code -
> > import org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer
> >
> > val interpreter = new RemoteInterpreterServer(51000)
> > interpreter.start()
> > c). When I go to the yarn application manager I can see this new
> > interpreter is running. Also the log file shows that the remote
> interpreter
> > has started in 51000 port
> >
> > 2. Next in a client machine (a mac laptop) I started Zeppelin.
> > a) I created a new Spark interpreter copying from existing one. There I
> > enabled the checkbox - Connect to Existing Process and provided host ip
> and
> > port.
> > b) I have kept the master as local
> > c) Now I selected this interpreter for Zeppelin Tutorial notebook and ran
> > the same.
> > d) The first paragraph with spark interpreter (Load Data in Table) worked
> > fine. Also I saw the log in the server shows that it is successfully
> > parsing the bank table.
> > e) But the next paragraph (%sql select age, count(1) value from bank
> where
> > age < 30 group by age order by age) gives error as follwos -
> >
> > Caused by: java.lang.ClassCastException: cannot assign instance of
> > scala.collection.immutable.List$SerializationProxy to field
> > org.apache.spark.rdd.RDD.org$apache$spark$rdd$RDD$$dependencies_ of type
> > scala.collection.Seq in instance of org.apache.spark.rdd.
> MapPartitionsRDD
> >
> > at
> > java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(
> > ObjectStreamClass.java:2089)
> >
> > at
> > java.io.ObjectStreamClass.setObjFieldValues(ObjectStreamClass.java:1261)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1999)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at java.io.ObjectInputStream.readObject(ObjectInputStream.
> > java:371)
> >
> > at
> > scala.collection.immutable.List$SerializationProxy.
> > readObject(List.scala:479)
> >
> > at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> >
> > at
> > sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > DelegatingMethodAccessorImpl.java:43)
> >
> > at java.lang.reflect.Method.invoke(Method.java:497)
> >
> > at
> > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at java.io.ObjectInputStream.readObject(ObjectInputStream.
> > java:371)
> >
> > at
> > scala.collection.immutable.List$SerializationProxy.
> > readObject(List.scala:479)
> >
> > at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> >
> > at
> > sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > DelegatingMethodAccessorImpl.java:43)
> >
> > at java.lang.reflect.Method.invoke(Method.java:497)
> >
> > at
> > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> >
> > Any idea where am I going wrong ?
> >
> > Regards,
> > Sourav
> >
>
Re: Issues in using Remote Interpreter
Posted by Sachin Janani <sj...@snappydata.io>.
Hi Eric,Sourav,
I tried with latest HEAD and it seems to be broken but it works properly
with zeppelin 0.6.1.
On Mon, Sep 12, 2016 at 6:53 PM, Eric Charles <er...@apache.org> wrote:
> Another more classical way to achieve this is to start the remote
> interpreter via the shell command (example `./bin/interpreter.sh -p 3034 -d
> markdown`).
>
> When I configure the markdown interpreter to connect to localhost:3034, I
> receive an thrift exception (*). My thrift server and client are normally
> compatible.
> Anyone running remote interperter with latest HEAD?
>
>
> INFO [2016-09-12 15:22:38,530] ({pool-2-thread-2}
> SchedulerFactory.java[jobFinished]:137) - Job
> paragraph_1423836981412_-1007008116 finished by scheduler
> org.apache.zeppelin.interpreter.remote.RemoteInterpreter2A94M5J1Z1515
> 930344
> ERROR [2016-09-12 15:22:38,714] ({qtp2076287037-51}
> ResourcePoolUtils.java[getAllResourcesExcept]:64) - Negative length:
> -2147418111
> org.apache.thrift.TApplicationException: Negative length: -2147418111
> at
> org.apache.thrift.TApplicationException.read(TApplicationException.java:
> 111)
> at org.apache.thrift.TServiceClient.receiveBase(
> TServiceClient.java:71)
> at
> org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$
> Client.recv_resourcePoolGetAll(RemoteInterpreterService.java:486)
> at
> org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$
> Client.resourcePoolGetAll(RemoteInterpreterService.java:474)
> at
> org.apache.zeppelin.resource.ResourcePoolUtils.getAllResourcesExcept(
> ResourcePoolUtils.java:58)
> at
> org.apache.zeppelin.resource.ResourcePoolUtils.getAllResources(
> ResourcePoolUtils.java:36)
> at org.apache.zeppelin.helium.Helium.suggestApp(Helium.java:153)
> at org.apache.zeppelin.rest.HeliumRestApi.suggest(
> HeliumRestApi.java:74)
> at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at
> org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(
> AbstractInvoker.java:180)
> at
> org.apache.cxf.service.invoker.AbstractInvoker.
> invoke(AbstractInvoker.java:96)
>
>
>
> On Fri, Aug 19, 2016 at 6:47 PM, Sourav Mazumder <
> sourav.mazumder00@gmail.com> wrote:
>
> > Hi,
> >
> > From the documentation it is not very clear how exactly the remote
> > interpreter works.
> >
> > Here is what I tried. But it didn't work. I am using zeppelin 0.6.1
> binary
> > and spark 2.0.
> >
> > 1. In a remote spark cluster
> > a) I created a spark interpreter (copying from the default spark
> > interpreter) with master as Yarn-Client
> > b). I started the same in a notebook (ensuring that this interpreter is
> > enabled) using following code -
> > import org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer
> >
> > val interpreter = new RemoteInterpreterServer(51000)
> > interpreter.start()
> > c). When I go to the yarn application manager I can see this new
> > interpreter is running. Also the log file shows that the remote
> interpreter
> > has started in 51000 port
> >
> > 2. Next in a client machine (a mac laptop) I started Zeppelin.
> > a) I created a new Spark interpreter copying from existing one. There I
> > enabled the checkbox - Connect to Existing Process and provided host ip
> and
> > port.
> > b) I have kept the master as local
> > c) Now I selected this interpreter for Zeppelin Tutorial notebook and ran
> > the same.
> > d) The first paragraph with spark interpreter (Load Data in Table) worked
> > fine. Also I saw the log in the server shows that it is successfully
> > parsing the bank table.
> > e) But the next paragraph (%sql select age, count(1) value from bank
> where
> > age < 30 group by age order by age) gives error as follwos -
> >
> > Caused by: java.lang.ClassCastException: cannot assign instance of
> > scala.collection.immutable.List$SerializationProxy to field
> > org.apache.spark.rdd.RDD.org$apache$spark$rdd$RDD$$dependencies_ of type
> > scala.collection.Seq in instance of org.apache.spark.rdd.
> MapPartitionsRDD
> >
> > at
> > java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(
> > ObjectStreamClass.java:2089)
> >
> > at
> > java.io.ObjectStreamClass.setObjFieldValues(ObjectStreamClass.java:1261)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1999)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at java.io.ObjectInputStream.readObject(ObjectInputStream.
> > java:371)
> >
> > at
> > scala.collection.immutable.List$SerializationProxy.
> > readObject(List.scala:479)
> >
> > at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> >
> > at
> > sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > DelegatingMethodAccessorImpl.java:43)
> >
> > at java.lang.reflect.Method.invoke(Method.java:497)
> >
> > at
> > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at java.io.ObjectInputStream.readObject(ObjectInputStream.
> > java:371)
> >
> > at
> > scala.collection.immutable.List$SerializationProxy.
> > readObject(List.scala:479)
> >
> > at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> >
> > at
> > sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > DelegatingMethodAccessorImpl.java:43)
> >
> > at java.lang.reflect.Method.invoke(Method.java:497)
> >
> > at
> > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> > at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> >
> > at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> >
> > at
> > java.io.ObjectInputStream.readOrdinaryObject(
> ObjectInputStream.java:1801)
> >
> > at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> >
> >
> > Any idea where am I going wrong ?
> >
> > Regards,
> > Sourav
> >
>