Federico Mariani created CAMEL-24146:
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Summary: camel-saga: InMemorySagaCoordinator creates a
FluentProducerTemplate per compensation/completion attempt and never stops it
Key: CAMEL-24146
URL: https://issues.apache.org/jira/browse/CAMEL-24146
Project: Camel
Issue Type: Bug
Components: camel-core
Reporter: Federico Mariani
h3. Problem
{{InMemorySagaCoordinator.doFinalize}} creates a new template for *every*
endpoint invocation, including every retry
(core/camel-support/src/main/java/org/apache/camel/saga/InMemorySagaCoordinator.java:199):
{code:java}
Exchange res =
camelContext.createFluentProducerTemplate().to(endpoint).withExchange(target).send();
{code}
The {{CamelContext.createFluentProducerTemplate()}} javadoc is explicit: "Make
sure to call stop() when you are done using the template, to clean up any
resources". The template is started, carries a producer cache (default max
1000), and is never stopped.
h3. Consequence
Every finalized saga step leaks one (or more, with retries) started service.
Combined with the coordinator map leak this makes the in-memory saga service
unsuitable for long-running production use.
h3. Suggested fix
Create one template per coordinator (or per saga service), reuse it for all
finalization calls, and stop it when the coordinator/service is done.
Found during a broader Saga EIP / camel-lra code review (July 2026).
_Claude Code on behalf of Croway_
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