Ok got some info myself.
I can have fault tolerance - I can start kafka-http-endpoint using
broker lists
I can have ack - start using --sync
But what is best practice in case if kafka-http-endpoint goes down?
Start multiple kafka-http-endpoint's and in client side just control
that kafka-http-endpoint is up? And if not up then using another?
Best regards, Margus (Margusja) Roo
+372 51 48 780
http://margus.roo.ee
http://ee.linkedin.com/in/margusroo
skype: margusja
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On 13/05/14 10:49, Margusja wrote:
Thank you for response. I think HTTP is ok.
I have two more question in case of HTTP.
1. Can I have fault tolerance in case I have two or more brokers?
2. Can I ack that message is in queue?
Best regards, Margus (Margusja) Roo
+372 51 48 780
http://margus.roo.ee
http://ee.linkedin.com/in/margusroo
skype: margusja
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On 12/05/14 23:28, Joe Stein wrote:
The wire protocol has changed drastically since then.
I don't know of any C# clients (there are none on the client library
page
nor have I heard of any being used in production but maybe there are
some).
For clients that use DotNet I often suggest that they use some HTTP
producer/consumer
https://cwiki.apache.org/confluence/display/KAFKA/Clients#Clients-HTTPREST
/*******************************************
Joe Stein
Founder, Principal Consultant
Big Data Open Source Security LLC
http://www.stealth.ly
Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
********************************************/
On Mon, May 12, 2014 at 12:34 PM, Margusja <mar...@roo.ee> wrote:
Hi
I have kafka broker running (kafka_2.9.1-0.8.1.1)
All is working.
One project requires producer is written in CSharp
I am not dot net programmer but I managed to write simple producer code
using https://github.com/kafka-dev/kafka/blob/master/clients/
csharp/README.md
the code
...
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using Kafka.Client;
namespace DemoProducer
{
class Program
{
static void Main(string[] args)
{
string payload1 = "kafka 1.";
byte[] payloadData1 = Encoding.UTF8.GetBytes(payload1);
Message msg1 = new Message(payloadData1);
string payload2 = "kafka 2.";
byte[] payloadData2 = Encoding.UTF8.GetBytes(payload2);
Message msg2 = new Message(payloadData2);
Producer producer = new Producer("broker", 9092);
producer.Send("kafkademo3", 0 , msg1 );
}
}
}
...
In broker side I am getting the error if I executing the code above:
[2014-05-12 19:15:58,984] ERROR Closing socket for /84.50.21.39 because
of error (kafka.network.Processor)
java.nio.BufferUnderflowException
at java.nio.HeapByteBuffer.get(HeapByteBuffer.java:145)
at java.nio.ByteBuffer.get(ByteBuffer.java:694)
at kafka.api.ApiUtils$.readShortString(ApiUtils.scala:38)
at
kafka.api.ProducerRequest$.readFrom(ProducerRequest.scala:33)
at
kafka.api.RequestKeys$$anonfun$1.apply(RequestKeys.scala:36)
at
kafka.api.RequestKeys$$anonfun$1.apply(RequestKeys.scala:36)
at kafka.network.RequestChannel$Request.<init>(RequestChannel.
scala:53)
at kafka.network.Processor.read(SocketServer.scala:353)
at kafka.network.Processor.run(SocketServer.scala:245)
at java.lang.Thread.run(Thread.java:744)
[2014-05-12 19:16:11,836] ERROR Closing socket for /90.190.106.56
because
of error (kafka.network.Processor)
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:379)
at kafka.utils.Utils$.read(Utils.scala:375)
at kafka.network.BoundedByteBufferReceive.readFrom(
BoundedByteBufferReceive.scala:54)
at kafka.network.Processor.read(SocketServer.scala:347)
at kafka.network.Processor.run(SocketServer.scala:245)
at java.lang.Thread.run(Thread.java:744)
I suspected that the problem is in the broker version
(kafka_2.9.1-0.8.1.1) so I downloaded kafka-0.7.1-incubating.
Now I was able to send messages using CSharp code.
So is there workaround how I can use latest kafka version and CSharp
? Or
What is the latest kafka version supporting CSharp producer?
--
Best regards, Margus (Margusja) Roo
+372 51 48 780
http://margus.roo.ee
http://ee.linkedin.com/in/margusroo
skype: margusja
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