I don't see how that would be possible. I am reading from a live stream of
data through kafka.
On Sat 12 Mar, 2016 20:28 Ted Yu, <yuzhih...@gmail.com> wrote:
> Interesting.
> If kv._1 was null, shouldn't the NPE have come from getPartition() (line
> 105) ?
>
> Was it possible that records.next() returned null ?
>
> On Fri, Mar 11, 2016 at 11:20 PM, Prabhu Joseph <
> prabhujose.ga...@gmail.com> wrote:
>
>> Looking at ExternalSorter.scala line 192, i suspect some input record has
>> Null key.
>>
>> 189 while (records.hasNext) {
>> 190 addElementsRead()
>> 191 kv = records.next()
>> 192 map.changeValue((getPartition(kv._1), kv._1), update)
>>
>>
>>
>> On Sat, Mar 12, 2016 at 12:48 PM, Prabhu Joseph <
>> prabhujose.ga...@gmail.com> wrote:
>>
>>> Looking at ExternalSorter.scala line 192
>>>
>>> 189
>>> while (records.hasNext) { addElementsRead() kv = records.next()
>>> map.changeValue((getPartition(kv._1), kv._1), update)
>>> maybeSpillCollection(usingMap = true) }
>>>
>>> On Sat, Mar 12, 2016 at 12:31 PM, Saurabh Guru <saurabh.g...@gmail.com>
>>> wrote:
>>>
>>>> I am seeing the following exception in my Spark Cluster every few days
>>>> in production.
>>>>
>>>> 2016-03-12 05:30:00,541 - WARN TaskSetManager - Lost task 0.0 in stage
>>>> 12528.0 (TID 18792, ip-1X-1XX-1-1XX.us <http://ip-10-180-1-188.us>
>>>> -west-1.compute.internal
>>>> ): java.lang.NullPointerException
>>>> at
>>>> org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:192)
>>>> at
>>>> org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:64)
>>>> at
>>>> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73)
>>>> at
>>>> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
>>>> at org.apache.spark.scheduler.Task.run(Task.scala:89)
>>>> at
>>>> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
>>>> at
>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>>> at
>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>> at java.lang.Thread.run(Thread.java:745)
>>>>
>>>>
>>>> I have debugged in local machine but haven’t been able to pin point the
>>>> cause of the error. Anyone knows why this might occur? Any suggestions?
>>>>
>>>>
>>>> Thanks,
>>>> Saurabh
>>>>
>>>>
>>>>
>>>>
>>>
>>
>
