producer-consumer

Disruptor github address is: https://github.com/LMAX-Exchange/disruptor I've a simple test for it as below: public class DisruptorMain { @SuppressWarnings({ "rawtypes", "unchecked" }) public static void main(String[] args) throws Exception { class Element { private int value; public int get() { return value; } public void set(int value) { this.value = value; } } ThreadFactory threadFactory = new ThreadFactory() { @Override public Thread newThread(Runnable r) { return new Thread(r, "simpleThread"); } }; EventFactory<Element> factory = new EventFactory<Element>() { @Override public Element

I`ve been reading about the principles of AMQP messaging confirms. ( https://www.rabbitmq.com/confirms.html ). Really helpful and wel written article but one particular thing about consumer aknowledgments is really confusing, here is the quote: Another things that's important to consider when using automatic acknowledgement mode is that of consumer overload . Consumer overload? Message queue is processed and kept in RAM by broker (if I understand it correctly). What overload is it about? Does consumer have some kind of second queue? Another part of that article is even more confusing:

I am getting exception while consuming the messages from kafka. org.springframework.messaging.MessagingException: Consuming from Kafka failed; nested exception is java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Iterator is in failed state I have one consumer in the application context with one outbound adapter. Consumer configuration in application context <int-kafka:consumer-context id="consumerContext" consumer-timeout="4000" zookeeper-connect="zookeeperConnect"> <int-kafka:consumer-configurations> <int-kafka:consumer-configuration group-id="GR1" value-decoder=

Right now, I have a queue, with multiple producers and single consumer. Consumer thread operation is slow. Also, consumer takes element from queue through a peek operation, and until the consumption operation is complete, the element cannot be removed from the queue. This is because the producer thread as a side operation also takes a snapshot of all elements that are not fully processed at that point in time. Now, I want to change my code to support multiple consumers. So, lets say I have three threads, one thread will take the first element, which can be read through a peek operation. The

I am trying to execute a sample producer consumer application using Apache Kafka. I downloaded it from https://www.apache.org/dyn/closer.cgi?path=/kafka/0.10.0.0/kafka-0.10.0.0-src.tgz . Then I started following the steps given in http://www.javaworld.com/article/3060078/big-data/big-data-messaging-with-kafka-part-1.html . When I tried to run bin/zookeeper-server-start.sh config/zookeeper.properties, I am getting Error: Could not find or load main class config.zookeeper.properties I googled about the issue but didn't get any useful information on this. Can anyone help me to continue? You've