Since you're running Storm to read data from Kafka, I'd expect it is not
due to 6349.

Could you provide a more detailed stack trace? The current provided one is
really small and not informative at all.

Guozhang

On Tue, Dec 12, 2017 at 6:42 PM, Ted Yu <yuzhih...@gmail.com> wrote:

> From the stack trace, it seems you hit KAFKA-6349 (where Damian provided a
> PR).
>
> FYI
>
> On Mon, Dec 11, 2017 at 11:29 PM, Mr.Wang <1282183...@qq.com> wrote:
>
> > Hi~
> > We found this error when we read kafka data using storm:
> > java.util.ConcurrentModificationException         at
> > java.util.LinkedHashMap$LinkedHashIterator.nextNode(
> LinkedHashMap.java:719)
> >        at java.util.LinkedHashMap$LinkedKeyIterator.next(
> LinkedHashMap.java:742)
> >        at java.util.AbstractCollection.addAll(AbstractCollection.
> java:343)May
> > I ask this to fix the program by ourselves? What code do we need to
> > modify?Thanks!
>



-- 
-- Guozhang

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