[CAMEL-6442] camel-netty-http route throws java.lang.IllegalStateException

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.10.4, 2.11.0
• Fix Version/s: 2.10.5, 2.11.1, 2.12.0
• Component/s: camel-netty
• Estimated Complexity: Unknown
• Assignee: Willem Jiang
• Reporter: Willem Jiang
• Created: 08/Jun/13 08:53
• Updated: 14/Jun/13 13:34
• Resolved: 09/Jun/13 02:02

Description

I just create a simple proxy route by using camel-netty-http component like this

        <route id="front">
            <from uri="netty-http:http://0.0.0.0:9001/test" />
            <to uri="netty-http:http://localhost:9090/foo" />
        </route>

        <route id="back">
            <from uri="netty-http:http://0.0.0.0:9090/foo" />
            <transform>
              <simple>hello world</simple>
            </transform>
        </route>

When I send the get request to http://localhost:9001/test, I got below exception

java.lang.IllegalStateException: await*() in I/O thread causes a dead lock or sudden performance drop. Use addListener() instead or call await*() from a different thread.
	at org.jboss.netty.channel.DefaultChannelFuture.checkDeadLock(DefaultChannelFuture.java:342)
	at org.jboss.netty.channel.DefaultChannelFuture.await0(DefaultChannelFuture.java:306)
	at org.jboss.netty.channel.DefaultChannelFuture.awaitUninterruptibly(DefaultChannelFuture.java:285)
	at org.apache.camel.component.netty.NettyProducer.openChannel(NettyProducer.java:402)
	at org.apache.camel.component.netty.NettyProducer$NettyProducerPoolableObjectFactory.makeObject(NettyProducer.java:473)
	at org.apache.camel.component.netty.NettyProducer$NettyProducerPoolableObjectFactory.makeObject(NettyProducer.java:468)
	at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1188)
	at org.apache.camel.component.netty.NettyProducer.process(NettyProducer.java:210)
	at org.apache.camel.component.netty.http.NettyHttpProducer.process(NettyHttpProducer.java:49)
	at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:123)
	at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:298)
	at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:118)
	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:388)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:189)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:189)
	at org.apache.camel.component.netty.handlers.ServerChannelHandler.processAsynchronously(ServerChannelHandler.java:118)
	at org.apache.camel.component.netty.handlers.ServerChannelHandler.messageReceived(ServerChannelHandler.java:102)
	at org.apache.camel.component.netty.http.handlers.HttpServerChannelHandler.messageReceived(HttpServerChannelHandler.java:97)
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
	at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
	at org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:145)
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
	at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
	at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:459)
	at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:536)
	at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:435)
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
	at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
	at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:109)
	at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
	at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:90)
	at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
	at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
	at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:680)

Issue Links

• is related to: CAMEL-6449 Deadlock in camel netty while sending messages to multiple tcp endpoints in single route