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Bhavesh Mistry updated KAFKA-1710: ---------------------------------- Attachment: Screen Shot 2014-10-15 at 9.14.15 PM.png Your Kit Monitor Screen shot: > [New Java Producer Potential Deadlock] Producer Deadlock when all messages is > being sent to single partition > ------------------------------------------------------------------------------------------------------------ > > Key: KAFKA-1710 > URL: https://issues.apache.org/jira/browse/KAFKA-1710 > Project: Kafka > Issue Type: Bug > Components: producer > Environment: Development > Reporter: Bhavesh Mistry > Assignee: Jun Rao > Priority: Critical > Labels: performance > Attachments: Screen Shot 2014-10-13 at 10.19.04 AM.png, Screen Shot > 2014-10-15 at 9.09.06 PM.png, Screen Shot 2014-10-15 at 9.14.15 PM.png, > TestNetworkDownProducer.java > > > Hi Kafka Dev Team, > When I run the test to send message to single partition for 3 minutes or so > on, I have encounter deadlock (please see the screen attached) and thread > contention from YourKit profiling. > Use Case: > 1) Aggregating messages into same partition for metric counting. > 2) Replicate Old Producer behavior for sticking to partition for 3 minutes. > Here is output: > Frozen threads found (potential deadlock) > > It seems that the following threads have not changed their stack for more > than 10 seconds. > These threads are possibly (but not necessarily!) in a deadlock or hung. > > pool-1-thread-128 <--- Frozen for at least 2m > org.apache.kafka.clients.producer.internals.RecordAccumulator.append(TopicPartition, > byte[], byte[], CompressionType, Callback) RecordAccumulator.java:139 > org.apache.kafka.clients.producer.KafkaProducer.send(ProducerRecord, > Callback) KafkaProducer.java:237 > org.kafka.test.TestNetworkDownProducer$MyProducer.run() > TestNetworkDownProducer.java:84 > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor$Worker) > ThreadPoolExecutor.java:1145 > java.util.concurrent.ThreadPoolExecutor$Worker.run() > ThreadPoolExecutor.java:615 > java.lang.Thread.run() Thread.java:744 > pool-1-thread-159 <--- Frozen for at least 2m 1 sec > org.apache.kafka.clients.producer.internals.RecordAccumulator.append(TopicPartition, > byte[], byte[], CompressionType, Callback) RecordAccumulator.java:139 > org.apache.kafka.clients.producer.KafkaProducer.send(ProducerRecord, > Callback) KafkaProducer.java:237 > org.kafka.test.TestNetworkDownProducer$MyProducer.run() > TestNetworkDownProducer.java:84 > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor$Worker) > ThreadPoolExecutor.java:1145 > java.util.concurrent.ThreadPoolExecutor$Worker.run() > ThreadPoolExecutor.java:615 > java.lang.Thread.run() Thread.java:744 > pool-1-thread-55 <--- Frozen for at least 2m > org.apache.kafka.clients.producer.internals.RecordAccumulator.append(TopicPartition, > byte[], byte[], CompressionType, Callback) RecordAccumulator.java:139 > org.apache.kafka.clients.producer.KafkaProducer.send(ProducerRecord, > Callback) KafkaProducer.java:237 > org.kafka.test.TestNetworkDownProducer$MyProducer.run() > TestNetworkDownProducer.java:84 > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor$Worker) > ThreadPoolExecutor.java:1145 > java.util.concurrent.ThreadPoolExecutor$Worker.run() > ThreadPoolExecutor.java:615 > java.lang.Thread.run() Thread.java:744 > Thanks, > Bhavesh -- This message was sent by Atlassian JIRA (v6.3.4#6332)