saiprasad mishra created KAFKA-4344:
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Summary: Exception when accessing partition, offset and timestamp
in processor class
Key: KAFKA-4344
URL: https://issues.apache.org/jira/browse/KAFKA-4344
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 0.10.1.0
Reporter: saiprasad mishra
Assignee: Guozhang Wang
Priority: Minor
I have a kafka stream pipeline like below
source topic stream -> filter for null value ->map to make it keyed by id
->custom processor to mystore ->to another topic -> ktable
I am hitting the below type of exception in a custom processor class if I try
to access offset() or partition() or timestamp() from the ProcessorContext in
the process() method. I was hoping it would return the partition and offset for
the enclosing topic(in this case source topic) where its consuming from or -1
based on the api docs.
java.lang.IllegalStateException: This should not happen as offset() should only
be called while a record is processed
at
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.offset(ProcessorContextImpl.java:181)
~[kafka-streams-0.10.1.0.jar!/:?]
at com.sai.repo.MyStore.process(MyStore.java:72) ~[classes!/:?]
at com.sai.repo.MyStore.process(MyStore.java:39) ~[classes!/:?]
at
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:82)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:204)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.kstream.internals.KStreamMap$KStreamMapProcessor.process(KStreamMap.java:43)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:82)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:204)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.kstream.internals.KStreamFilter$KStreamFilterProcessor.process(KStreamFilter.java:44)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:82)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:204)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.SourceNode.process(SourceNode.java:66)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.StreamTask.process(StreamTask.java:181)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:436)
~[kafka-streams-0.10.1.0.jar!/:?]
at
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:242)
[kafka-streams-0.10.1.0.jar!/:?]
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