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https://issues.apache.org/jira/browse/CAMEL-16213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-16213.
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Resolution: Fixed
> camel-core - Exchange pooling
> -----------------------------
>
> Key: CAMEL-16213
> URL: https://issues.apache.org/jira/browse/CAMEL-16213
> Project: Camel
> Issue Type: New Feature
> Components: came-core
> Reporter: Luca Burgazzoli
> Assignee: Claus Ibsen
> Priority: Major
> Fix For: 3.9.0
>
>
> By default a brand new exchange is created for each message received by a
> component and that's usually fine but for very simple routes, like those
> created by the camel-kafka-connector or the Kantive Sources in camel-k it may
> be useful to have an option to create pools of reusable exchanges as:
> - exchanges are short living objects and routes are simple
> - exchanges are heavy (multiple maps for properties and headers)
> - camel-kafka-connector and knative sources are likely to receive the same
> messages type, with the same set of headers so the maps allocated by the
> exchange can safely be recycled to reduce allocations and resizing
> In addition to the reason above, we can leverages exchange pooling to:
> - implement back pressure driven by the resource constraints to be sure we
> don't exceed resources consumption and we don't degrade the the service (i.e.
> long GC pause)
> - have a way to create tailored exchanges, i.e. by providing an exchange that
> does not have in/out but just in
> An example of fast and efficient ASL2 licensed object pooling:
> https://github.com/chrisvest/stormpot
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