Hello,
I am doing samples using hedwig. I am trying to create a subscription for
a topic using following code.
HedWigClient client = new HedwigClient(conf)
Subscriber sub = client.getSubscriber()
if(!sub.hasSubscription(topic, subscription)) {
sub.subscriber(topic, subscription, CreateOrAttach.CREATE_OR_ATTACH)
}
I am getting following exception. I looked at source code, but not able to
understand under what conditions hedwig server throws "COMPOSITE"
exception as shown below. Can some please help in understanding the issue.
org.apache.hedwig.exceptions.PubSubException$ServiceDownException: Server
responded with a status code of: COMPOSITE
at
org.apache.hedwig.client.handlers.SubscribeResponseHandler.handleSubscribeResponse(SubscribeResponseHandler.java:158)
at
org.apache.hedwig.client.netty.ResponseHandler.messageReceived(ResponseHandler.java:158)
at
org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:100)
at
org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at
org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)
at
org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:76)
at
org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at
org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)
at
org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:317)
at
org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:299)
at
org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:216)
at
org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)
at
org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at
org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)
at
org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)
at
org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)
at
org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)
at
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Regards,
Suman
