N S N MURTHY created KAFKA-17361:
------------------------------------

             Summary: KAFKA producer thread hung or infinite wait state 
                 Key: KAFKA-17361
                 URL: https://issues.apache.org/jira/browse/KAFKA-17361
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 2.5.0
            Reporter: N S N MURTHY


We noticed an issue where one producer thread is hung or infinite wait.

KAFKA: kafka-2.5.0

KAFKA Client: 3.6.2

We recovered the same by restarting our application. Please let me know your 
comments on this.

java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(java.base@17.0.8.1/Native Method)
- waiting on
at org.apache.kafka.common.utils.SystemTime.waitObject(SystemTime.java:55)
- locked <0x00001000ad72c348> (a 
org.apache.kafka.clients.producer.internals.ProducerMetadata)
at 
org.apache.kafka.clients.producer.internals.ProducerMetadata.awaitUpdate(ProducerMetadata.java:119)
- locked <0x00001000ad72c348> (a 
org.apache.kafka.clients.producer.internals.ProducerMetadata)
at 
org.apache.kafka.clients.producer.KafkaProducer.waitOnMetadata(KafkaProducer.java:1132)
at 
org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:981)
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:947)
at 
org.apache.kafka.streams.processor.internals.StreamsProducer.send(StreamsProducer.java:260)
at 
org.apache.kafka.streams.processor.internals.RecordCollectorImpl.send(RecordCollectorImpl.java:253)
at 
org.apache.kafka.streams.processor.internals.RecordCollectorImpl.send(RecordCollectorImpl.java:175)
at 
org.apache.kafka.streams.processor.internals.SinkNode.process(SinkNode.java:85)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forwardInternal(ProcessorContextImpl.java:290)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:269)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:228)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:215)
at 
org.apache.kafka.streams.kstream.internals.KStreamFilter$KStreamFilterProcessor.process(KStreamFilter.java:44)
at 
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:154)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forwardInternal(ProcessorContextImpl.java:290)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:269)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:228)
at 
org.apache.kafka.streams.kstream.internals.KStreamMap$KStreamMapProcessor.process(KStreamMap.java:48)
at 
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:152)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forwardInternal(ProcessorContextImpl.java:290)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:269)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:228)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:215)
at 
org.apache.kafka.streams.kstream.internals.KStreamFilter$KStreamFilterProcessor.process(KStreamFilter.java:44)
at 
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:154)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forwardInternal(ProcessorContextImpl.java:290)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:269)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:228)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:215)
at 
org.apache.kafka.streams.kstream.internals.KStreamFlatMapValues$KStreamFlatMapValuesProcessor.process(KStreamFlatMapValues.java:44)
at 
org.apache.kafka.streams.processor.internals.ProcessorNode.process(ProcessorNode.java:154)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forwardInternal(ProcessorContextImpl.java:290)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:269)
at 
org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:228)
at 
org.apache.kafka.streams.processor.internals.SourceNode.process(SourceNode.java:84)
at 
org.apache.kafka.streams.processor.internals.StreamTask.lambda$doProcess$1(StreamTask.java:810)
at 
org.apache.kafka.streams.processor.internals.StreamTask$$Lambda$2360/0x00007f1eb7106af8.run(Unknown
 Source)
at 
org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl.maybeMeasureLatency(StreamsMetricsImpl.java:872)
at 
org.apache.kafka.streams.processor.internals.StreamTask.doProcess(StreamTask.java:810)
at 
org.apache.kafka.streams.processor.internals.StreamTask.process(StreamTask.java:741)
at 
org.apache.kafka.streams.processor.internals.TaskExecutor.processTask(TaskExecutor.java:97)
at 
org.apache.kafka.streams.processor.internals.TaskExecutor.process(TaskExecutor.java:78)
at 
org.apache.kafka.streams.processor.internals.TaskManager.process(TaskManager.java:1765)
at 
org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:807)
at 
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:617)
at 
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:579)



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