> I am using Cassandra in place of the local file, in-memory, etc, that is
built into ActiveMQ for Idempotentcy.
Did you write or find a persistence adapter for Cassandra?
In what specific way will Cassandra enable idempotency where other options
(e.g. KahaDB, JDBC database, etc.) won't?
> Activ
Hi William-
There are literally hundreds, if not thousands of messaging patterns possible.
There isn’t a one-side-fits all tuning option.
The impacts include message size, number of destinations, message rate, QoS,
security, etc.
For the Linux OS, most common thing to keep an eye on is file ha
Hi Jason-
A couple of recommendations for idempotent consumers:
1. The idempotent store should be the same as the target store for the
consumer. Anything else is creating yet-another-hop.
2. Insert a record of the message id to the idempotent store (aka inbox
pattern) and then continue to inse
I am using Cassandra in place of the local file, in-memory, etc, that is built
into ActiveMQ for Idempotentcy.
ActiveMQ Classic is being used as the default messaging platform along with the
built-in Camel components. There are certain instances where Camel can send
duplicate data; to prevent
> Whereas, the Address size of address TEST is 108900. Can you clarify how
this value is calculated?
Not much more can be said here without getting into the weeds technically.
As mentioned previously, this value "is calculated by inspecting each
message as it is sent to an address and adding its i
My apologies but I meant ActiveMQ Classic and not Artemis.
Regards,
William Crowell
From: William Crowell
Date: Tuesday, May 27, 2025 at 12:07 PM
To: users@activemq.apache.org
Subject: Linux Specific Tuning For Apache Artemis
Good afternoon.
Are there any additional Linux specific tuning guid
Good afternoon.
Are there any additional Linux specific tuning guidelines for Apache Artemis
than what is provided in the following link:
https://activemq.apache.org/components/artemis/documentation/latest/perf-tuning.html
Regards,
William Crowell
This e-mail may contain information that is
Can you clarify your use-case?
Are you attempting to use Apache Cassandra as the storage mechanism for
ActiveMQ Classic? If so, you'll need to implement a Cassandra-based
persistence adapter since it doesn't provide a JDBC driver or other means
of integration. It's possible such an adapter already
I am working on using Idempotency within ActiveMQ Classic using Apache
Cassandra as my DB.
I have the following jar files that are loaded with ActiveMQ:
camel-cassandraql-4.10.4.jar
cassandra-driver-core-3.10.0.jar
java-driver-core-4.17.0.jar
java-driver-shaded.guava-25.1-jre-graal-sub-1.jar
nat
Below is an address named TEST with only one queue named TEST with 100 messages.
The queue persistent size of TEST is 101417600 that is the sum of size of all
the messages in that queue.
Whereas, the Address size of address TEST is 108900. Can you clarify how this
value is calculated?
As pag
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