ActiveMQ Topic Memory Usage Requirements

Greetings, I apologize in advance if this question has already been asked before, but my forum search has not been fruitful in regards to this question as of yet. The question I have is about the memory usage requirements with a non-persistent topic. We are running ActiveMQ 4.0-RC2 in an embedd

High Availability and Network Of Brokers

Hi, I'm a New user. I'd like to use activemq for a Network Of Brokers / Clustered deployment. The catch is that I can't afford to loose a single message in the event of failure. In the Network of Brokers topology, I'm reading this isn't possible: "At any point in time the message will only exis

JCA adapter and Spring 2 application conflict in JBoss

If I try to deploy the ActiveMQ JCA resource adapter (activemq-rar-4.1.0-incubator.rar) side by side with a Spring 2 war in JBoss 4.0.3 , I get the following error on server startup: ERROR [org.springframework.web.context.ContextLoader] Context initialization failed org.springframework.beans.fact

Re: active mq (size of the internal data structure and expiration of messages)

On 7 Feb 2007, at 19:38, Suchitha Koneru ((sukoneru)) wrote: Hello Active Mq Users , I am using Publish/subscribe model for transfer of messages with durable subscriptions. I suppose that active mq internally stores messages using queue or a similar data structure. yes

Re: Message Groups and multiple brokers

I still can't get this working. Setting the sequence id to 0 doesn't do anything. In fact, when i sent N number of messages to a variety of message groups, and print out the ==msg.getStringProperty("JMSXGroupSeq")== what prints is always 0. Is there a configuration option i don't know about to

active mq (size of the internal data structure and expiration of messages)

Hello Active Mq Users , I am using Publish/subscribe model for transfer of messages with durable subscriptions. I suppose that active mq internally stores messages using queue or a similar data structure. I was just wondering about the size of this queue maintained internal

Re: Cannot create destinations at startup when they have authorization requirements

I will, thanks. Carlos James.Strachan wrote: > > Ah good catch. We need to fix that. > > I've raised the following JIRA... > http://issues.apache.org/activemq/browse/AMQ-1157 > > I've checked in a patch which should work to trunk if you fancy giving it > a try. > > On 2/7/07, Carlos <[EMAIL

Re: SocketException with "no such device" msg on multicast configuration

I've tried it but it doesn't help. Bobby Quninne wrote: > > I had a similar issue under linux. I just started activemq as root and it > was resolved. > > eylon wrote: >> >> Hello, >> >> I've tried to configure 2 brokers, having one of them listen to a >> multicast address and the other adver

Re: Cannot create destinations at startup when they have authorization requirements

Ah good catch. We need to fix that. I've raised the following JIRA... http://issues.apache.org/activemq/browse/AMQ-1157 I've checked in a patch which should work to trunk if you fancy giving it a try. On 2/7/07, Carlos <[EMAIL PROTECTED]> wrote: Cannot create destinations at startup when they

Re: JMX preventing connector from stopping.

Hi James, I tried the same test with the latest 4.2 snapshot but I'm getting the same behaviour. I wrote a short program that demonstrates the problem. It's called http://www.nabble.com/file/6298/Test.java Test.java . Notice that if the ENABLE_JMX boolean in BrokerDisconnect is set to true, the

Cannot create destinations at startup when they have authorization requirements

Cannot create destinations at startup when they have authorization requirements Hi. I have a queue that is configured in a element so only some roles can read,write or admin it. I want to create this queue at startup, using . When I try, activemq fails to start with a SecurityException I would

ActiveMQ Spring 2.0 Support Configurations

Dear all, I am currently struggling in migrating my Spring 1.2 based Application (based on ActiveMQ 4.0) to Spring 2.0 and ActiveMQ 4.1. The examples provided in the Spring support part do not cover a fully functional setup, the links to the subversion repository are broken. Can anyone provide

Re: SocketException with "no such device" msg on multicast configuration

I had a similar issue under linux. I just started activemq as root and it was resolved. eylon wrote: > > Hello, > > I've tried to configure 2 brokers, having one of them listen to a > multicast address and the other advertise itself using discovery. This > configuration is described > http://

Re: durable subscriptions

On 2/6/07, Suchitha Koneru (sukoneru) <[EMAIL PROTECTED]> wrote: Thank you so much James. Which version of active mq support durable subscriptions, All of them since 1.0 As of now, I am using the following jars , in regard to active mq activemq-core-4.0.1.jar backport-util-concurrent-2.1.ja

option wireFormat.tcpNoDelayEnabled=true seems to be ignored

At least in connection URL's used by clients, the option wireFormat.tcpNoDelayEnabled=true is ignored silently. So, you may have tried to disable Nagle's algorithm, to reduce latency for example, without noticing any effect... workaround: use socket.tcpNoDelay instead, for example: "tcp://localho

Re: High latency for small messages problem

Well, finally I found the cause for this problem. It was not an OS issue, it was that ActiveMQ does not recognize the option "wireFormat.tcpNoDelayEnabled" properly, and silently ignores it or so it seems. I have opened an issue at https://issues.apache.org/activemq/browse/AMQ-1156 , see there for