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Kafka, mail # user - java.io.IOException: Broken pipe


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Re: java.io.IOException: Broken pipe
Neha Narkhede 2013-03-19, 06:06
The logs show that senseidb is prematurely closing the socket connection to
the Kafka broker. I would enable atleast INFLO logging for Kafka in
Senseidb to see what the issue is.

Thanks,
Neha

On Monday, March 18, 2013, Yonghui Zhao wrote:

> Thanks Neha,
>
> I use one kafka server with 4 partitions and 3 consumers(senseidb).
>
> Kafka server producer input rate is about 10k.
> And each consumer consuming rate is about 3k.
>
> I see this exceptions many times, kafka has this exception on each
> consumers, but I didn't find error log in consumer side, consumer(senseidb)
> is alive all the time.
> Is it possible the exception is related with high input/output rate?
>
> And some times another exception(*Connection reset by peer*) happened.
>
> [2013-03-18 21:18:29,107] ERROR Closing socket for /10.2.201.203 because
> of error (kafka.network.Processor)
> java.io.IOException: Connection reset by peer
>     at sun.nio.ch.FileChannelImpl.**transferTo0(Native Method)
>     at sun.nio.ch.FileChannelImpl.**transferToDirectly(**
> FileChannelImpl.java:456)
>     at sun.nio.ch.FileChannelImpl.**transferTo(FileChannelImpl.**java:557)
>     at kafka.message.FileMessageSet.**writeTo(FileMessageSet.scala:**102)
>     at kafka.server.MessageSetSend.**writeTo(MessageSetSend.scala:**53)
>     at kafka.network.MultiSend.**writeTo(Transmission.scala:91)
>     at kafka.network.Processor.write(**SocketServer.scala:339)
>     at kafka.network.Processor.run(**SocketServer.scala:216)
>     at java.lang.Thread.run(Thread.**java:679)
>
>
>
> Btw: the log is full of "*Closing socket connection*", is it normal?
>
> From the code each "Closing" log should  correspond to one exception
>
> In SocketServer.scala:
>
> *catch {**
> **            case e: EOFException => {**
> **              logger.info("Closing socket connection to
> %s.".format(channelFor(key).**socket.getInetAddress))**
> **              close(key)**
> **        }**
> *
>
> [2013-03-18 21:28:42,791] INFO *Closing socket connection* to /
> 10.2.201.201. (kafka.network.Processor)
> [2013-03-18 21:28:43,954] INFO *Closing socket connection* to /
> 10.2.201.201. (kafka.network.Processor)
> [2013-03-18 21:28:45,322] INFO *Closing socket connection* to /
> 10.2.201.201. (kafka.network.Processor)
> [2013-03-18 21:28:47,045] INFO *Closing socket connection *to /
> 10.2.201.201. (kafka.network.Processor)
> [2013-03-18 21:28:50,110] ERROR Closing socket for /10.2.201.201 because
> of error (kafka.network.Processor)
> java.io.IOException: Broken pipe
>     at sun.nio.ch.FileChannelImpl.**transferTo0(Native Method)
>     at sun.nio.ch.FileChannelImpl.**transferToDirectly(**
> FileChannelImpl.java:456)
>     at sun.nio.ch.FileChannelImpl.**transferTo(FileChannelImpl.**java:557)
>     at kafka.message.FileMessageSet.**writeTo(FileMessageSet.scala:**102)
>     at kafka.server.MessageSetSend.**writeTo(MessageSetSend.scala:**53)
>     at kafka.network.MultiSend.**writeTo(Transmission.scala:91)
>     at kafka.network.Processor.write(**SocketServer.scala:339)
>     at kafka.network.Processor.run(**SocketServer.scala:216)
>     at java.lang.Thread.run(Thread.**java:679)
>
>
>
> From the error it seems that the server was not able to write the fetch
> response on the socket since the socket was closed. Do you see any errors
> on the consumer on 10.2.201.20 <http://10.2.201.202/> ? The consumer
> could've
> closed the socket due to some error or could've died.
>
> Thanks,
> Neha
> - Hide quoted text - <http://grokbase.com/t/kafka/**
> users/133fwd3r91/java-io-**ioexception-broken-pipe#<http://grokbase.com/t/kafka/users/133fwd3r91/java-io-ioexception-broken-pipe#>>
>
> On Friday, March 15, 2013, Yonghui Zhao wrote:
>
> This exception happened many times in high through put in kafka 0.7.2
>
> [2013-03-15 17:27:16,691] ERROR Closing socket for /10.2.201.202 because
> of
> error (kafka.network.Processor)
> java.io.IOException: Broken pipe
> at sun.nio.ch.FileChannelImpl.**transferTo0(Native Method)
> at
> sun.nio.ch.FileChannelImpl.**transferToDirectly(**