[KAFKA-2504] Stop logging WARN when client disconnects

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0.0
• Assignee: Jeff Holoman
• Reporter: Gwen Shapira
• Reviewer: Gwen Shapira
• Created: 02/Sep/15 19:13
• Updated: 14/Sep/15 20:16
• Resolved: 14/Sep/15 20:16

Description

I thought we fixed this one, but it came back. This can be fill logs and is fairly useless. Should be logged at DEBUG level:

[2015-09-02 12:05:59,743] WARN Error in I/O with connection to /10.191.0.36 (org.apache.kafka.common.network.Selector)
java.io.IOException: Connection reset by peer
	at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
	at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
	at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
	at sun.nio.ch.IOUtil.read(IOUtil.java:197)
	at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
	at org.apache.kafka.common.network.PlaintextTransportLayer.read(PlaintextTransportLayer.java:111)
	at org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:81)
	at org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:71)
	at org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:154)
	at org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:135)
	at org.apache.kafka.common.network.Selector.poll(Selector.java:296)
	at kafka.network.Processor.run(SocketServer.scala:405)
	at java.lang.Thread.run(Thread.java:745)