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Kafka, mail # user - Wrong request type 768


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Re: Wrong request type 768
Guozhang Wang 2013-11-04, 23:36
Hello Ahmed,

Currently we only have 10 total Kafka request types, including produce
request, fetch request and topic metadata request. And these requests are
encoded with a key, currently ranging from 0 to 9. When Kafka server
receives a request with key it cannot recognize, that exception will be
thrown.

I am curious how a request with key 768 can be generated. Could you
describe the process to reproduce it?

Guozhang
On Mon, Nov 4, 2013 at 2:08 PM, Ahmed H. <[EMAIL PROTECTED]> wrote:

> Hello All,
>
> I am getting this error and I am not sure what that means. Specifically the
> "Wrong request type 768"
>
> [2013-11-04 16:56:47,540] ERROR Closing socket for /0:0:0:0:0:0:0:1 because
> of error (kafka.network.Processor)
> kafka.common.KafkaException: Wrong request type 768
> at kafka.api.RequestKeys$.deserializerForKey(RequestKeys.scala:53)
> at kafka.network.RequestChannel$Request.<init>(RequestChannel.scala:49)
>  at kafka.network.Processor.read(SocketServer.scala:345)
> at kafka.network.Processor.run(SocketServer.scala:245)
>  at java.lang.Thread.run(Thread.java:724)
>
> Is there any place I can look up such information, or does anyone know what
> the 768 means?
>
> Cheers
>

--
-- Guozhang