[ 
https://issues.apache.org/jira/browse/KAFKA-2078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14681847#comment-14681847
 ] 

PC commented on KAFKA-2078:
---------------------------

Hi again,

It just happened again. This time, pumped only 4 messages. Again, look at the 
timestamps:

15:57:20,559 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could 
NOT find resource [logback.groovy]
15:57:20,559 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could 
NOT find resource [logback-test.xml]
15:57:20,560 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found 
resource [logback.xml] at 
[file:/Users/pascal/Projects/frida-core/target/scala-2.10/classes/logback.xml]
15:57:20,724 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction 
- debug attribute not set
15:57:20,727 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About 
to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
15:57:20,737 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming 
appender as [STDOUT]
15:57:20,790 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - This 
appender no longer admits a layout as a sub-component, set an encoder instead.
15:57:20,790 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - To ensure 
compatibility, wrapping your layout in LayoutWrappingEncoder.
15:57:20,790 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - See also 
http://logback.qos.ch/codes.html#layoutInsteadOfEncoder for details
15:57:20,791 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - 
Setting level of logger [consumer] to DEBUG
15:57:20,791 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - 
Setting level of logger [producer] to DEBUG
15:57:20,791 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - 
Setting level of ROOT logger to WARN
15:57:20,791 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - 
Attaching appender named [STDOUT] to Logger[ROOT]
15:57:20,792 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction 
- End of configuration.
15:57:20,793 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@38ddb44b 
- Registering current configuration as safe fallback point

15:57:21.057 [kafka-producer-network-thread | producer-2] DEBUG producer - 
PumpSuccess topic[test] partition[0] offset[582177726]
15:57:21.057 [kafka-producer-network-thread | producer-1] DEBUG producer - 
PumpSuccess topic[test] partition[0] offset[582177728]
15:57:21.057 [kafka-producer-network-thread | producer-4] DEBUG producer - 
PumpSuccess topic[test] partition[0] offset[582177725]
15:57:21.057 [kafka-producer-network-thread | producer-3] DEBUG producer - 
PumpSuccess topic[test] partition[0] offset[582177727]
16:08:39.667 [kafka-producer-network-thread | producer-2] WARN  
o.a.kafka.common.network.Selector - Error in I/O with localhost/127.0.0.1
java.io.EOFException: null
        at 
org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:62) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:248) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:192) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122) 
[kafka-clients-0.8.2.1.jar:na]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
16:08:39.667 [kafka-producer-network-thread | producer-4] WARN  
o.a.kafka.common.network.Selector - Error in I/O with localhost/127.0.0.1
java.io.EOFException: null
        at 
org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:62) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:248) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:192) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122) 
[kafka-clients-0.8.2.1.jar:na]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
16:08:39.667 [kafka-producer-network-thread | producer-3] WARN  
o.a.kafka.common.network.Selector - Error in I/O with localhost/127.0.0.1
java.io.EOFException: null
        at 
org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:62) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:248) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:192) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122) 
[kafka-clients-0.8.2.1.jar:na]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]
16:08:39.667 [kafka-producer-network-thread | producer-1] WARN  
o.a.kafka.common.network.Selector - Error in I/O with localhost/127.0.0.1
java.io.EOFException: null
        at 
org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:62) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.common.network.Selector.poll(Selector.java:248) 
~[kafka-clients-0.8.2.1.jar:na]
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:192) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191) 
[kafka-clients-0.8.2.1.jar:na]
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122) 
[kafka-clients-0.8.2.1.jar:na]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_40]

What is this!? All my zookeeper timeouts etc are set to 30seconds.

Nothing gets logged in Zookeeper and the Kafka-Server at that timestamp.

What is going on!?

> Getting Selector [WARN] Error in I/O with host java.io.EOFException
> -------------------------------------------------------------------
>
>                 Key: KAFKA-2078
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2078
>             Project: Kafka
>          Issue Type: Bug
>          Components: producer 
>    Affects Versions: 0.8.2.0
>         Environment: OS Version: 2.6.39-400.209.1.el5uek and Hardware: 8 x 
> Intel(R) Xeon(R) CPU X5660  @ 2.80GHz/44GB
>            Reporter: Aravind
>            Assignee: Jun Rao
>
> When trying to Produce 1000 (10 MB) messages, getting this below error some 
> where between 997 to 1000th message. There is no pattern but able to 
> reproduce.
> [PDT] 2015-03-31 13:53:50 Selector [WARN] Error in I/O with "our host" 
> java.io.EOFException at 
> org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:62)
>  at org.apache.kafka.common.network.Selector.poll(Selector.java:248) at 
> org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:192) at 
> org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191) at 
> org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122) at 
> java.lang.Thread.run(Thread.java:724)
> This error I am getting some times @ 997th message or 999th message. There is 
> no pattern but able to reproduce.



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