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https://issues.apache.org/jira/browse/CAMEL-20199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Filotto updated CAMEL-20199:
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Description:
For full support of Virtual Threads, several sub-tasks need to be done:
* Avoid Lengthy and Frequent Pinning by replacing synchronized blocks with
ReentrantLocks (use the option {{-Djdk.tracePinnedThreads=ful}} to print stack
traces when a thread blocks while pinned)
* Don't Cache Expensive Reusable Objects in Thread-Local Variables by avoiding
thread locals when possible since when using Virtual Threads, the objects will
never be reused so if the thread-local variables are never reset, it will end
up with an OOME.
* Use Semaphores to Limit Concurrency instead of relying on the size of the
thread pool when applicable
* Allow to expose {{ThreadPerTaskExecutor}} through JMX indeed so far it is
limited to {{ThreadPoolExecutor}}
References https://docs.oracle.com/en/java/javase/21/core/virtual-threads.html
was:
For a full support of Virtual Threads, several sub-tasks need to be done:
* Avoid Lengthy and Frequent Pinning by replacing synchronized blocks with
ReentrantLocks (use the option {{-Djdk.tracePinnedThreads=ful}} to print stack
traces when thread block while pinned)
* Don't Cache Expensive Reusable Objects in Thread-Local Variables by avoiding
thread locals when possible since when using Virtual Threads, the objects will
never be reused so if the thread-local variables are never reset, it will end
up with an OOME.
* Use Semaphores to Limit Concurrency instead of relying on the size of the
thread pool when applicable
* Allow to expose {{ThreadPerTaskExecutor}} through JMX indeed so far it is
limited to {{ThreadPoolExecutor}}
References https://docs.oracle.com/en/java/javase/21/core/virtual-threads.html
> Complete support of Virtual Threads
> -----------------------------------
>
> Key: CAMEL-20199
> URL: https://issues.apache.org/jira/browse/CAMEL-20199
> Project: Camel
> Issue Type: Improvement
> Components: came-core
> Reporter: Nicolas Filotto
> Priority: Major
>
> For full support of Virtual Threads, several sub-tasks need to be done:
> * Avoid Lengthy and Frequent Pinning by replacing synchronized blocks with
> ReentrantLocks (use the option {{-Djdk.tracePinnedThreads=ful}} to print
> stack traces when a thread blocks while pinned)
> * Don't Cache Expensive Reusable Objects in Thread-Local Variables by
> avoiding thread locals when possible since when using Virtual Threads, the
> objects will never be reused so if the thread-local variables are never
> reset, it will end up with an OOME.
> * Use Semaphores to Limit Concurrency instead of relying on the size of the
> thread pool when applicable
> * Allow to expose {{ThreadPerTaskExecutor}} through JMX indeed so far it is
> limited to {{ThreadPoolExecutor}}
> References https://docs.oracle.com/en/java/javase/21/core/virtual-threads.html
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