On Tue, Apr 13, 2010 at 1:22 AM, matthewm <mmo...@gmail.com> wrote: > > Hello, > > We are using Camel 2.2.0 with Spring 3.0.1.RELEASE in the context of a web > service. > > We've been using @EndpointInject to inject ProducerTemplates into our beans. > Some of our beans are request scoped, and so a new ProducerTemplate is > created and injected on each request. > > After more study this seems to run counter to the idea of ProducerTemplate, > which appears to have been conceived as a long-lived object rather than > transient. It seems perhaps the documentation of @EndpointInject might > point this out; injecting into singletons makes perfect sense but injecting > into request-scoped beans may be undesirable. >
The FAQ has some details on producer template http://camel.apache.org/why-does-camel-use-too-many-threads-with-producertemplate.html You can just use @Autowired or other Spring IoC stuff. @Autowired private ProducerTemplate template; Camel will automatic enlist a ProducerTemplate if you do not explict set a <template id="xxx"/> in the <camelContext/> tag. Then it will use the shared instance of ProducerTemplate instead of creating a new one each time. > Specifically, the issue we found is that each ProducerTemplate creates a > Producer which then is registered with JMX. Eventually we wind up with > thousands of Producers referenced by JMX (but otherwise garbage) resulting > in OOM errors. > Yeah this is fixed in 2.3-SNAPSHOT. > It seems like a bug that Camel's JMX integration prevents producers from > being eligible for GC. But how best to proceed with making a > ProducerTemplate available to request scoped beans? > > Thanks! > > Matt > -- > View this message in context: > http://old.nabble.com/Injecting-ProducerTemplates%2C-scoping%2C-and-JMX-memleak-tp28219199p28219199.html > Sent from the Camel - Users mailing list archive at Nabble.com. > > -- Claus Ibsen Apache Camel Committer Author of Camel in Action: http://www.manning.com/ibsen/ Open Source Integration: http://fusesource.com Blog: http://davsclaus.blogspot.com/ Twitter: http://twitter.com/davsclaus
