For message-oriented middleware that does not consistently support priority messages (such as AMQP) what is the best way to implement priority consumption when queues have only FIFO semantics? The general ... |
A recent presentation I saw regarding RabbitMQ mentioned the use of something called an "idempotency barrier" for message de-duplication. Is this just a fancy name for a ... |
There are a couple of threads talking about license issue. Mostly focusing on GPL/LGPL/BSD. I am trying to use RabbitMQ in commercial applications, which is licensed under Mozilla Public License(MPL). Is ... |
The system we are building is receiving data through the external feed. Our job is to distribute this data to multiple services, run the calculations and forward the results elsewhere - ... |
I want to remove bindings in RabbitMQ without deleting the bound queue. I am using txAMQP with the 0.8 AMQP spec; it seems to be the only version that RabbitMQ supports ... |
I want to send a message whenever RabbitMQ creates or deletes a queue, exchange or binding. Is this feasible from a client API? What about as a plug-in?
|
I need to set up a job/message queue with the option to set a delay for the task so that it's not picked up immediately by a free worker, but after ... |
|
I am trying to use RabbitMQ in my C/C++ app, so far I have realized that using OpenAMQ's C Client is the only option, but OpenAMQ is AMQP 0-9 something and ... |
I am trying to build rabbitmq server on windows but no luck. Rabbitmq website doesn't help much. Can someone help.
|
Process A is calculating values for objects a1, a2, a3 etc. and is sending results to the middleware queue (RabbitMQ). Consumers read the queue and process these results further.
Periodically process ... |
I am currently evaluating message queue systems and RabbitMq seems like a good candidate, so I'm digging a little more into it.
To give a little context I'm looking to have something ... |
Greetings,
I'm evaluating some components for a multi-data center distributed system. We're going to be using message queues (via either RabbitMQ or Qpid) so agents can make asynchronous requests to other agents ... |
Usually work in Windows, but trying to setup RabbitMQ on my Mac. Can someone let me know what the line below does?
[ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != ...
|
I have some code that produces lots of data that should be stored in the database. The problem is that the database can't keep with the data that it gets produced. ... |
Does the content type header in RabbitMQ have any special meaning, or is it only a standardized way for my producers and consumers to signal what kind of data they are ... |
How Can i check whether a message Queue already exists or not..
Reason for this is i have 2 different applications one creating a queue and other reading from that queue..So ... |
I'm writing components of a .Net 4.0 web solution (on IIS7, WS2008), and need to provide a service which can consume messages from a message queue. I've found setup examples for ... |
RabbitMQ keeps failing and we fix it by restarting the service but we don't know why it fails. Has anybody else experienced these issues?
|
I have a producer that I want to distribute work consistently across consumers by consistent hashing. For example, with consumer nodes X and Y, tasks A, B, C should always go ... |
How to implements rabbitMQ message broker with Java client.i am not found any document or link to understand implementation.
Thanks
|
how to implement RPC Mechanism(both producer and consumer) using RabbitMQ in java?i am also visit official site http://www.rabbitmq.com/api-guide.html#rpc but i am getting detail description about this things.
Thanks
|
Hi
I am doing a POC with the rabbitMQ and writing a program to add two numbers and getting the response.
The code that we wrote to retrieve the value from the queue ... |
i am using Rabbitmq Java client API.i am sending two number from GUI to producer and producer put into queue another side consumer can listen the queue and read it and ... |
I've been trying to figure out exactly what message-oriented middleware is, but haven't been able to find any non-enterprise real world examples that make sense to me. Can anyone give me ... |
i want to know how to configure haproxy and rabbitmq.i want to make my rabbitmq more scalable and available....
any link any idea anyone have
|
I'm going to be building an app shortly that requires reliable, reasonably high throughput messaging. Many of the endpoint consumers of our messages are SOAP web sevices however.
RabbitMQ and related technologies ... |
Want to know the behavior of rabbitmq multiple publisher and consumer.
Does rabbitmq server gives one message to any one of the consumer at a time and other consumers are ideal at ... |
I need to be able to send files like pdf or word via RabbitMQ (I think answer might be more generic meaning not specific to RabbitMQ but any broker I am ... |
I am currently thinking about designing an architecture that can handle vast volumes of incoming source data, clean the data and store it in a key/value store like Riak or MongoDB. ... |
Dear,
I installed rabbitmq service on window by using command:
rabbitmq-service.bat install
Service rabbitmq install successful but the name of this service is strange
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RabbitMQ01cba63f8e86f1f0
Does anyone know why the suffix after RabbitMQ come from? ... |
we use RabbitMQ to send jobs from a producer on one machine, to a small group of consumers distributed across several machines.
The producer generates jobs and places them on the ... |
Recently I started working on a project which require to implement Messaging and viable options are : Apache Qpid or RabbitMq , My Task is like this :
+A+ >>.[Millions Devices ... |
i am using Rabbitmq Java client library.RabbitMQ provides robust messaging for applications.there are two entires are used publish,those publish an message and consumer that are infinite run and poll queue where ... |
I'm doing a test on the speed of retrieving message out of a queue. With 1 consumer, the speed is around 20 msg / s. When I increase the number of ... |
Looking for experience with RabbitMQ, especially in HA configuration using Pacemaker and DRDB as recommended here: http://www.rabbitmq.com/pacemaker.html
The DRBD part in particular makes me nervous, so I'm hoping someone ... |
I have just installed a new version of rabbitmq and recieved the following messsage upon running:
rabbitmq undefined function ssl:ssl_accept/3
Does anyone have an idea ?
The server ... |
Just upgraded to a new version of RabbitMQ - 2.3.1 . and now I get an exception with the following sentence -
PRECONDITION_FAILED unknown delivery tag 1
then ...
|
Our scenario: dozens of Windows laptops which are occasionally connected to the network. Need to store simple data records on each laptop, then have these reliably transferred to a service running ... |
i am using Rabbitmq server.can i start server using Java code?
Thanks
|
Many times, I get:
-Frozen, load goes to 5.0. Can't use my box.
-Just doesn't work.
|
Pretty new to RabbitMQ and we're still in the investigation stage to see if it's a good fit for our use cases--
We've readily come to the conclusion that our desired topology ... |
I'm looking at the repos and there are so many projects, not sure which are wrappers/clients and which is the actual project.
Is it erlang?
|
I'm creating a logging facility for an application that will use RabbitMQ to collect log messages. I'm trying to decide on how I should structure the topic field of the message.
One ... |
Is there a way I can have a direct exchange simulate a topic exchange (I know that the opposite can be obtained: see here), but my use case here ... |
This is my code and i set the true on autoDelete both queue , exchange finally publish is not sending any message to consumer several minute at this time i would ... |
Let's say I have a queue on which multiple consumers are listening to. I put a request on the queue and one of the consumer will process it, and send me ... |
Does anyone know if the pop operation on a RabbitMQ queue is atomic?
I have several processes reading from the same queue (the queue is marked as durable, running on version 2.0.0) ... |
I'm using rabbitmq java client 2.4.1 the newest version.
After a TCP connection lost, and still call a method on a channel over
this connection, a AlreadyClosedException will be thrown.
Is it a bug? ... |
I have a scenario where a client sends an http request to download a file. The file needs to be dynamically generated and typically takes 5-15 seconds. Therefore I am looking ... |
I'm considering RabbitMQ's usefulness for creating a multi-user chat system. People would be able to chat in various rooms, some public and some private, and privately person-to-person. Would it be possible ... |
I would like to learn what are the scenarios/usecases/ where messaging like RabbitMQ can help consumer web applications.
Are there any specific resources to learn from?
What web applications ... |
Can I have two queues with the same name and same routingKey yet each bound to another exchange?
|
How do I instruct the RabbitMQ processes (epmd and beam.smp) to listen only to the loopback interface (127.0.0.1)?
|
I am trying to monitor a machine in which RabbitMQ is installed.
RabbitMQ's broker is working well in that machine.
Now I want to monitor that machine using open source HypricHQ software.
The problem ...
|
My rabbit logs are getting very large and I am wondering if there is a better way to control the rotation. I'd like the logs to rotate based on size, and ... |
Pretty straightforward question. I can't find it in the docs or the spec.
|
I've used RabbitMQ server and for publishing messages when the immediate field was set true ,I tried sending 50,000 messages and using rabbitmqctl list_queues, I saw that number of messages in ... |
I've read about the frame_max for rabbitMQ, it said frame_max is "Maximum permissible size of a frame (in bytes) to negotiate with clients. Setting to 0 means "unlimited" but will trigger ... |
If I have made a queue which is exclusive and durable (not auto-delete). Now, if the consumer subscribes to that queue and then it goes down. Then that queue gets deleted. ... |
We're using flume and I need to collect some log messages into rabbitmq. I found a source implementation that reads messages from rabbitmq, but I couldn't find a sink ... |
What I require from usage of RabbitMQ is: The producer produces messages and receiver receives all the messages, which are published after the time it has first connected to the queue.
Since ... |
Do you know any learning good learning resources for RabbitMQ:
- Tutorial
- Videos
- Podcast
- Books
- Github projects
|
We have a standalone java application doing some background processing on a Debian machine. The jobs it has to handle are send through RabbitMQ messages.
When the java application needs to ... |
I have a few queues running with RabbitMq. A few of them are of no use now, how can I delete them? Unfortunately i had not set the auto_delete option.
If i ... |
I'm looking forward to develop a realtime API for my web application using Websocket. For this I'm using RabbitMQ as the broker and My backend is based on python (gevent + ... |
I've been using RabbitMQ in a few setups now, and I can't shake the feeling that there must be something that's more easily set up. Despite it's conveniences it's hard to ... |
I am setting up a rabbitmq cluster and ran into an issue during the one step in the process. Its straight out of the rabbitmq clustering guide.
root@celery:~# rabbitmqctl status
Status of node ...
|
I've got an application which has some bugs. For some reason 2 consumers are created when only one should be there - and one of them is not checked for messages ... |
I've got a strange situation where one service started 2 consumers. For all I know, the first one was disconnected by timeout / network glitch / something else.
What I end up ... |
I'm using Elastic-search server 0.16.2. I prepared index using Rabbitmq river.for that i used elastic-client java API.i do some updatation on my data,i want to update my previously created index.how it ... |
Im trying to figure out which of these two messages queues to go with. I was initial interested in RabbitMQ but have been a bit discouraged by the fact that it ... |
Our requirement is very simple. Send messages to users subscribed to a topic. We need our messaging system to be able to support millions of topics and maybe millions of subscribers ... |
I have a requirement to use RabbitMQ to send messages in a Java program. These messages contain 2 fields - A single byte identifier and many bytes of data. ... |
I am considering using AMQP for an application where delivery order is paramount.
I cannot therefore use the normal re-delivery features, as undelivered messages are re-queued out of order.
It looks ... |
I have some problem so can you help me. Is instance of AmqpTemplate class from RabbitMQ ( implementation of AMQP protocol) thread safe. Can it be accessed from multiple threads?
Thanks
|
I wrote a little test for a simple scenario:
One publisher and one subscriber
Publisher send 1000000 messages
Subscriber receive the 1000000 messages
First test with RabbitMQ, fanout Exchange, RabbitMq node type Ram : 320 ... |
I have some requirements for a system in need of a message queue:
- The subscribers shall get individual queues.
- The individual queues shall NOT be deleted when the subscriber disconnects
- The subscriber shall be ...
|
How can I verify which version of rabbitmq is running on a server?
Any command to verify this?
Thanks for the help.
|
I am using c library of RabbitMQ. It has a function amqp_login
I am using it as following.
::amqp_rpc_reply_t c_amqp_rpc_reply =
...
|
I wanted to ask if someone knows about the segfault issue of amqp_basic_publish function. Since its a RabbitMQ library; I cant even go into it and debug it.
Do you know ... |
I want to send messages from a client computer to a consumer on a server computer over an unreliable connection. In my program I don't want to worry about the connection, ... |
The current section in my supervisord.conf looks like:
[program:rabbitmq]
command=/usr/sbin/rabbitmq-server
When I try to stop the rabbitmq with supervisord ( supervisorctl stop rabbitmq), the rabbitmq processes simply do not shut down. The rabbitmq documentation ... |
I am using RabbitMQ to have worker processes encode video files. I would like to know when all of the files are complete - that is, when all of the worker ... |
"Durable" and "persistent mode" appear to relate to reboots rather than relating to there being no subscribers to receive the message.
I'd like RabbitMQ to keep messages on the queue when there ... |
I've been evaluating messaging technologies for my company but I've become very confused by the conceptual differences between a few terms:
Pub/Sub vs Multicast vs Fan Out
I am working with the following ... |
I recently set a SpringSource CloudFoundry micro cloud instance and am trying to run through their fairly brief messaging example using RabbitMQ found here (with code):
http://support.cloudfoundry.com/entries/20322602-getting-started-with-the-rabbitmq-service-from-a-spring-application
A public working instance ... |
I work on a web application that is a multi-tenant cloud based application (lots of clients, each with their own separate "environment", but all on shared sets of hardware) and we're ... |
Is there a way to use the consistent hash exchange (http://hg.rabbitmq.com/rabbitmq-consistent-hash-exchange/file/default/README.md) of RabbitMQ with Akka amqp? It is easy to use Topic, direct etc. I am wondering if I can specify ... |