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Questions tagged [activemq]

Apache ActiveMQ is an enterprise-level open source message broker and JMS client

Apache ActiveMQ is an open source message broker written in Java together with a full Java Message Service (JMS) client. It provides "Enterprise Features" which in this case means fostering the communication from more than one client or server. Supported clients include Java via JMS 1.1 as well as several other "cross language" clients. The communication is managed with features such as computer clustering and ability to use any database as a JMS persistence provider besides virtual memory, cache, and journal persistence.

Source:

https://en.wikipedia.org/wiki/Apache_ActiveMQ

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ActiveMQ: handling of STOMP NACK messages

STOMP documentation says about NACK message https://stomp.github.io/stomp-specification-1.2.html#NACK NACK is the opposite of ACK. It is used to tell the server that the client did not consume the message. The server can then either send the…
Karel Bílek
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ActiveMQ: Constantly increasing number of tasks

I am running ActiveMQ 5.15.8 and MCollective client on Ubuntu 18. With every request, number of tasks increases by 4. sudo systemctl status activemq | grep Tasks At some point, Out of memory is reached and ActiveMQ must be restarted. How to recover…
Zdenko.S
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Negative pending messages in ActiveMQ

We have a cluster of 6 ActiveMQ nodes. ActiveMQ version is 5.15.8 on all nodes. The problem is that we randomly face negative count of pending messages on brokers. We googled the issue and found that some fellows have the same issue on older…
Sinai
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ActiveMQ Artemis: Propagate credentials from Websocket to STOMP

Can ActiveMQ Artemis propagate basic authentication information (username, password) from a Websocket to the encapsulated STOMP protocol (STOMP-over-Websockets)? The documentation does not really help here.
Stephan
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activemq url starts with scp://

I have inherited a system where the activemq address looks like this scp://localhost:61616 ActiveMQ itself only seems to be configured for tcp. I can't find any reference to that protocol here:…
Alex028502
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ActiveMQ Artemis: TLS certificate reload

Can Apache ActiveMQ Artemis (v2.13.0) use an updated TLS certificate while running, or does it require a restart? I did not find something about it in Configuring Transports and Configuration Reload sections. When aiming towards short-living TLS…
Stephan
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ActiveMQ Artemis: Quorum-only instance?

For a fully redundant ActiveMQ Artemis cluster, either a set of three broker pairs or network ping is required to avoid split-brain scenerios. In some installations, only two datacenters or availability zones are available plus a small third site…
Stephan
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Unable to connect to hawtio on ActiveMQ

I am trying to get hawtio on an ActiveMQ 5.11 server via the http://:8161/api/jolokia URL. The URL works if I curl/hit it from a browser but when trying to use the hawtio.jar via java -jar hawtio.jar it fails. It's working find on my…
TheFiddlerWins
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ActiveMQ Pure Master / Slave - Out of sync

What i have : 1 master broker and 1 slave broker both in ActiveMQ 5.4.0 What i use : waitForSlave on master side and failover uri on slave side (in the master connector URI) What i want to do : I want to wait some delay (like 5 seconds) in case of…
pico
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Apollo broker run error

I have been trying to create a broker on my activemq apache-apollo 1.7.1 installation. I get the following error: $ apollo-broker run Startupfailed:java.lang.NoClassDefFoundError:javax/xml/bind/ValidationEventHandler
alan
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