Exceptions not caught?

2014-10-23 Thread ankits 
Hi, I'm running a spark job and encountering an exception related to thrift.
I wanted to know where this is being thrown, but the stack trace is
completely useless. So I started adding try catches, to the point where my
whole main method that does everything is surrounded with a try catch. Even
then, nothing is being caught. I still see this message though:

2014-10-23 15:39:50,845  ERROR [] Exception in task 1.0 in stage 1.0 (TID 1)
java.io.IOException: org.apache.thrift.protocol.TProtocolException:
.

What is going on? Why isn't the exception just being handled by the
try-catch? (BTW this is in Scala)



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Re: Exceptions not caught?

2014-10-23 Thread Ted Yu 
Can you show the stack trace ?

Also, how do you catch exceptions ? Did you specify TProtocolException ?

Cheers

On Thu, Oct 23, 2014 at 3:40 PM, ankits  wrote:

> Hi, I'm running a spark job and encountering an exception related to
> thrift.
> I wanted to know where this is being thrown, but the stack trace is
> completely useless. So I started adding try catches, to the point where my
> whole main method that does everything is surrounded with a try catch. Even
> then, nothing is being caught. I still see this message though:
>
> 2014-10-23 15:39:50,845  ERROR [] Exception in task 1.0 in stage 1.0 (TID
> 1)
> java.io.IOException: org.apache.thrift.protocol.TProtocolException:
> .
>
> What is going on? Why isn't the exception just being handled by the
> try-catch? (BTW this is in Scala)
>
>
>
> --
> View this message in context:
> http://apache-spark-user-list.1001560.n3.nabble.com/Exceptions-not-caught-tp17157.html
> Sent from the Apache Spark User List mailing list archive at Nabble.com.
>
> -
> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
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>
>

Re: Exceptions not caught?

2014-10-23 Thread ankits 
pply(HashShuffleWriter.scala:65)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:65)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:54)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
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)
2014-10-23 15:51:10,791  ERROR [] Task 0 in stage 1.0 failed 1 times;
aborting job



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Re: Exceptions not caught?

2014-10-23 Thread ankits 
Also everything is running locally on my box, driver and workers.



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Re: Exceptions not caught?

2014-10-23 Thread Ted Yu 
eam.java:1547)
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
> at
>
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> at
> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
> at
>
> org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:42)
> at
>
> org.apache.spark.storage.DiskBlockObjectWriter.write(BlockObjectWriter.scala:195)
> at
>
> org.apache.spark.shuffle.hash.HashShuffleWriter$$anonfun$write$1.apply(HashShuffleWriter.scala:67)
> at
>
> org.apache.spark.shuffle.hash.HashShuffleWriter$$anonfun$write$1.apply(HashShuffleWriter.scala:65)
> at scala.collection.Iterator$class.foreach(Iterator.scala:727)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
> at
>
> org.apache.spark.shuffle.hash.HashShuffleWriter.write(HashShuffleWriter.scala:65)
> 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:54)
> at
> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
> at
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2014-10-23 15:51:10,791  ERROR [] Task 0 in stage 1.0 failed 1 times;
> aborting job
>
>
>
> --
> View this message in context:
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Re: Exceptions not caught?

2014-10-23 Thread ankits 
>Can you check your class Y and fix the above ?

I can, but this is about catching the exception should it be thrown by any
class in the spark job. Why is the exception not being caught?



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Re: Exceptions not caught?

2014-10-23 Thread Marcelo Vanzin 
On Thu, Oct 23, 2014 at 3:40 PM, ankits  wrote:
> 2014-10-23 15:39:50,845  ERROR [] Exception in task 1.0 in stage 1.0 (TID 1)
> java.io.IOException: org.apache.thrift.protocol.TProtocolException:

This looks like an exception that's happening on an executor and just
being reported in the driver's logs, so there's nothing to catch in
the driver, which might explain why you're not catching anything.

-- 
Marcelo

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Re: Exceptions not caught?

2014-10-23 Thread Nan Zhu 
Hi,   

Spark dispatches your tasks to the distributed (remote) executors  

when the task is terminated due to an exception, it will report to the driver 
with the reason (exception)

So, in the driver side, you see the reason of the task failure which actually 
happened in remote end…so, you cannot catch anything in driver side


Best,  

--  
Nan Zhu


On Thursday, October 23, 2014 at 6:40 PM, ankits wrote:

> Hi, I'm running a spark job and encountering an exception related to thrift.
> I wanted to know where this is being thrown, but the stack trace is
> completely useless. So I started adding try catches, to the point where my
> whole main method that does everything is surrounded with a try catch. Even
> then, nothing is being caught. I still see this message though:
>  
> 2014-10-23 15:39:50,845 ERROR [] Exception in task 1.0 in stage 1.0 (TID 1)
> java.io.IOException: org.apache.thrift.protocol.TProtocolException:
> .
>  
> What is going on? Why isn't the exception just being handled by the
> try-catch? (BTW this is in Scala)
>  
>  
>  
> --
> View this message in context: 
> http://apache-spark-user-list.1001560.n3.nabble.com/Exceptions-not-caught-tp17157.html
> Sent from the Apache Spark User List mailing list archive at Nabble.com 
> (http://Nabble.com).
>  
> -
> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org 
> (mailto:user-unsubscr...@spark.apache.org)
> For additional commands, e-mail: user-h...@spark.apache.org 
> (mailto:user-h...@spark.apache.org)
>  
>