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https://issues.apache.org/jira/browse/KAFKA-3324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Noll updated KAFKA-3324:
--------------------------------
Description:
KAFKA-3311 changed
{{streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamPartitionAssignor.java}},
which triggers NPEs consistently at this line:
{code}
for (Map.Entry<String, Set<TaskId>> entry :
internalSourceTopicToTaskIds.entrySet()) {
{code}
The impact is significant unfortunately because any end-to-end Streams job that
I have been running keeps failing currently because of this bug.
*How to fix*
The naive fix -- a simple null check -- seems to resolve the problem. PR
incoming.
was:
KAFKA-3311 changed
{{streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamPartitionAssignor.java}},
which unfortunately triggers NPEs consistently at this line:
{code}
for (Map.Entry<String, Set<TaskId>> entry :
internalSourceTopicToTaskIds.entrySet()) {
{code}
The naive bug fix -- a simple null check -- seems to resolve the problem. PR
incoming.
> NullPointerException in StreamPartitionAssignor (Kafka Streams)
> ---------------------------------------------------------------
>
> Key: KAFKA-3324
> URL: https://issues.apache.org/jira/browse/KAFKA-3324
> Project: Kafka
> Issue Type: Bug
> Components: kafka streams
> Affects Versions: 0.10.0.0
> Reporter: Michael Noll
>
> KAFKA-3311 changed
> {{streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamPartitionAssignor.java}},
> which triggers NPEs consistently at this line:
> {code}
> for (Map.Entry<String, Set<TaskId>> entry :
> internalSourceTopicToTaskIds.entrySet()) {
> {code}
> The impact is significant unfortunately because any end-to-end Streams job
> that I have been running keeps failing currently because of this bug.
> *How to fix*
> The naive fix -- a simple null check -- seems to resolve the problem. PR
> incoming.
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