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https://issues.apache.org/jira/browse/KAFKA-1710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14173368#comment-14173368
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Bhavesh Mistry commented on KAFKA-1710:
---------------------------------------
Here is property file used for testing:
{code}
# THIS IS FOR NEW PRODUCERS API TRUNK Please see the configuration at
https://kafka.apache.org/documentation.html#newproducerconfigs
# Broker List
bootstrap.servers=dare-msgq00.sv.walmartlabs.com:9092,dare-msgq01.sv.walmartlabs.com:9092,dare-msgq02.sv.walmartlabs.com:9092
#Data Acks
acks=0
# 64MB of Buffer for log lines (including all messages).
buffer.memory=134217728
compression.type=snappy
retries=3
# DEFAULT FROM THE KAFKA...
# batch size = ((buffer.memory) / (number of partitions)) (so we can have in
progress batch size created for each partition.).
batch.size=1048576
#2MiB
max.request.size=1048576
send.buffer.bytes=2097152
# We do not want to block the buffer Full so application thread will not be
blocked but logs lines will be dropped...
block.on.buffer.full=false
#2MiB
send.buffer.bytes=2097152
#wait...
linger.ms=3600000
{code}
> [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, th1.dump, th10.dump, th11.dump, th12.dump,
> th13.dump, th14.dump, th15.dump, th2.dump, th3.dump, th4.dump, th5.dump,
> th6.dump, th7.dump, th8.dump, th9.dump
>
>
> 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
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